Participant card :
Last name : Chan
First name : Tin-Yam
List of participations in accessible surveys [+] [-]
- ATIMO VATAE
- Fort-Dauphin (27/04/2010 - 19/05/2010)
- Collecte - Tri (Carcinologie, National Taiwan Ocean University)
- AURORA 2007
- (20/05/2007 - 05/06/2007)
- ( National Taiwan Ocean University)
- DongSha 2014
- (29/04/2014 - 02/06/2014)
- ( National Taiwan Ocean University)
- KANADEEP 2
- Leg.2 (22/09/2019 - 01/10/2019)
- Tri et identification des décapodes (Biologie, National Taiwan Ocean University)
- KAVALAN 2018
- Collecte - Tri ( National Taiwan Ocean University)
- MAINBAZA
- (09/04/2009 - 17/04/2009)
- Collecte - Tri - Photo (Carcinologie, National Taiwan Ocean University)
- NORFOLK 1
- Collecte - Tri - Photo (Carcinologie, National Taiwan Ocean University)
- PANGLAO 2005
- (22/05/2005 - 01/06/2005)
- Collecte - Tri (Carcinologie, National Taiwan Ocean University)
- PAPUA NIUGINI
- Shore-based sampling (05/11/2012 - 14/12/2012)
- ( National Taiwan Ocean University)
- SAKIZAYA 2019
- Chef de mission (Carcinologie, National Taiwan Ocean University)
- TAIWAN 2000
- (27/07/2000 - 12/08/2000)
- Chef de mission (Carcinologie, National Taiwan Ocean University)
- TAIWAN 2001
- Mai 2001 (05/05/2001 - 21/05/2001)
- Chef de mission (Carcinologie, National Taiwan Ocean University)
- TAIWAN 2002
- Mai 2002 N.O. Ocean Researcher 1 (18/05/2002 - 21/05/2002)
- Chef de mission (Carcinologie, National Taiwan Ocean University)
- TAIWAN 2003
- Mai-juin 2003 (28/05/2003 - 01/06/2003)
- Chef de mission (Carcinologie, National Taiwan Ocean University)
- TAIWAN 2004
- Rih-Jheng 101 (27/08/2004 - 02/09/2004)
- Chef de mission (Carcinologie, National Taiwan Ocean University)
- TAIWAN 2013
- Ocean Researcher 3 (20/05/2013 - 21/05/2013)
- Chef de mission (Carcinologie, National Taiwan Ocean University)
Documents [+] [-]
Bibliography (113) [+] [-]
Export the bibliographies
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Ahyong S.T. & Chan T. 2004. Polychelid lobsters of Taiwan (Decapoda: Polychelidae). The Raffles Bulletin of Zoology 52(1): 171-182
Accessible surveys cited (4) [+] [-]
Associated collection codes: IU (Crustaceans) -
Ahyong S.T. & Chan T.Y. 2008. Polychelidae from the Bohol and Sulu Seas collected by Panglao 2005 (Crustacea: Decapoda: Polychelidae). Raffles Bulletin of Zoology: 63–70
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Ahyong S.T., Chan T. & Bouchet P. 2010. Mighty claws: a new genus and species of lobster from the Philippine deep sea (Crustacea, Decapoda, Nephropidae). Zoosystema 32(3): 525-535. DOI:10.5252/z2010n3a11
Abstract [+] [-]A new genus and species of deepwater lobster of the family Nephropidae, Dinochelus ausubeli n. gen., n. sp., is described from the Philippine Sea off the island of Luzon. The new genus and species is most closely related to species of Thaumastocheles and Thaumastochelopsis, sharing the distinctive, strongly dimorphic chelipeds, and shares features of both genera. Most notably, D. ausubeli n. gen., n. sp. shares movable well-developed eyestalks with species of Thaumastochelopsis (versus highly reduced and fixed eyestalks in species of Thaumastocheles), and similar branchial formula and uropod structure with Thaumastocheles. Dinochelus n. gen. differs from species of Thaumastocheles and Thaumastochelopsis (as well as all other clawed lobsters) in having an inverted, T-shaped epistome. Phylogenetic analysis of 12S rRNA sequences indicated that Dinochelus n. gen. is sister to a Thaumastocheles + Thaumastochelopsis clade. The new species is named after Jesse Ausubel at the occasion of the 10-year synthesis of the Census of Marine Life.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Ahyong S.T. 2013. Stomatopoda collected primarily by the Philippine AURORA expedition (Crustacea, Squilloidea), in Ahyong S.T., Chan T., Corbari L. & Ng P.K.(Eds), Tropical Deep-Sea Benthos 27. Mémoires du Muséum national d'Histoire naturelle 204:85-106, ISBN:978-2-85653-692-6
Abstract [+] [-]Stomatopod Crustacea of the superfamily Squilloidea collected primarily by the Philippine AURORA expedition are reported. One family, nine genera and 15 species are reported, of which one genus and two species are new to science. The new genus, Triasquilla n. gen., comprising two new species, belongs to the “Meiosquilla” group within Squillidae and is most closely allied to Schmittius Manning, 1972, from the eastern Pacific and Squilloides Manning, 1968, from the Indo-West Pacific. Anchisquilla fasciaticauda Liu & Wang, 1998, Cloridina chlorida (Brooks, 1886), Harpiosquilla sinensis Liu & Wang, 1998, Neclorida miersi (Manning, 1968) and Quollastria ornata (Manning, 1971) are reported from the Philippines for the first time. The study is supplemented by additional material of the new species described herein collected from various Indo-West Pacific localities by other deep-sea expeditions to the Philippines, Solomon Islands, New Caledonia, Vanuatu, Fiji, Tonga and Western Australia.
Accessible surveys cited (9) [+] [-]AURORA 2007, BATHUS 4, BORDAU 1, BORDAU 2, MUSORSTOM 10, MUSORSTOM 8, PANGLAO 2005, SALOMON 1, SANTO 2006
Associated collection codes: IU (Crustaceans) -
Aznar-cormano L., Brisset J., Chan T., Corbari L., Puillandre N., Utgé J., Zbinden M., Zuccon D. & Samadi S. 2015. An improved taxonomic sampling is a necessary but not sufficient condition for resolving inter-families relationships in Caridean decapods. Genetica 143(2): 195-205. DOI:10.1007/s10709-014-9807-0
Abstract [+] [-]During the past decade, a large number of multi-gene analyses aimed at resolving the phylogeneticrelationships within Decapoda. However relationships among families, and even among sub-families, remain poorly defined. Most analyses used an incomplete and opportunistic sampling of species, but also an incomplete and opportunistic gene selection among those available for Decapoda. Here we test in the Caridea if improving the taxonomic coverage following the hierarchical scheme of the classification, as it is currently accepted, provides a better phylogenetic resolution for the inter-families relationships. The rich collections of the Muse´um National d’Histoire Naturelle de Paris are used for sampling as far as possible at least two species of two different genera for each family or subfamily. All potential markers are tested over this sampling. For some coding genes the amplification success varies greatly among taxa and the phylogenetic signal is highly saturated. This result probably explains the taxon-heterogeneity among previously published studies. The analysis is thus restricted to the genes homogeneously amplified over the whole sampling. Thanks to the taxonomic sampling scheme the monophyly of most families is confirmed. However the genes commonly used in Decapoda appear non-adapted for clarifying inter-families relationships, which remain poorly resolved. Genome-wide analyses, like transcriptome-based exon capture facilitated by the new generation sequencing methods might provide a sounder approach to resolve deep and rapid radiations like the Caridea.
Accessible surveys cited (39) [+] [-]Restricted, ATIMO VATAE, Restricted, Restricted, BATHUS 1, BATHUS 3, BATHUS 4, BENTHAUS, BERYX 11, BERYX 2, BIOCAL, Restricted, BIOPAPUA, Restricted, Restricted, Restricted, Restricted, Restricted, Restricted, HALIPRO 1, HALIPRO 2, Restricted, KARUBAR, Restricted, LAGON, MAINBAZA, MD08 (BENTHOS), MD20 (SAFARI), MIRIKY, MUSORSTOM 2, MUSORSTOM 3, MUSORSTOM 5, MUSORSTOM 9, NORFOLK 1, NORFOLK 2, SALOMON 2, SALOMONBOA 3, SANTO 2006, SMCB
Associated collection codes: IU (Crustaceans) -
Bracken-grissom H.D., Ahyong S.T., Wilkinson R.D., Feldmann R.M., Schweitzer C.E., Breinholt J.W., Bendall M., Palero F., Chan T., Felder D.L., Robles R., Chu K.H., Tsang L.M., Kim D., Martin J.W. & Crandall K.A. 2014. The Emergence of Lobsters: Phylogenetic Relationships, Morphological Evolution and Divergence Time Comparisons of an Ancient Group (Decapoda: Achelata, Astacidea, Glypheidea, Polychelida). Systematic Biology 63(4): 457-479. DOI:10.1093/sysbio/syu008
Abstract [+] [-]Lobsters are a ubiquitous and economically important group of decapod crustaceans that include the infraorders Polychelida, Glypheidea, Astacidea andAchelata. They include familiar forms such as the spiny, slipper, clawed lobsters and crayfish and unfamiliar forms such as the deep-sea and “living fossil” species. The high degree of morphological diversity among these infraorders has led to a dynamic classification and conflicting hypotheses of evolutionary relationships. In this study, we estimated phylogenetic relationships among the major groups of all lobster families and 94% of the genera using six genes (mitochondrial and nuclear) and 195 morphological characters across 173 species of lobsters for the most comprehensive sampling to date. Lobsters were recovered as a non-monophyletic assemblage in the combined (molecular + morphology) analysis. All families were monophyletic, with the exception of Cambaridae, and 7 of 79 generawere recovered as poly- or paraphyletic. A rich fossil history coupled with dense taxon coverage allowed us to estimate and compare divergence times and origins of major lineages using two drastically different approaches. Age priors were constructed and/or included based on fossil age information or fossil discovery, age, and extant species count data. Results from the two approaches were largely congruent across deep to shallow taxonomic divergences across major lineages. The origin of the first lobster-like decapod (Polychelida) was estimated in the Devonian (∼409–372 Ma) with all infraorders present in the Carboniferous (∼353–318 Ma). Fossil calibration subsampling studies examined the influence of sampling density (number of fossils) and placement (deep, middle, and shallow) on divergence time estimates. Results fromour study suggest including at least 1 fossil per 10 operational taxonomic units (OTUs) in divergence dating analyses.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Burukovsky R.N. 2013. Shrimps of the family Nematocarcinidae Smith, 1884 (Crustacea, Decapoda, Caridea) from Taiwan and Philippines collected by the TAIWAN, PANGLAO 2005 and AURORA expeditions in the western Pacific, in Ahyong S.T., Chan T., Corbari L. & Ng P.K.(Eds), Tropical Deep-Sea Benthos 27. Mémoires du Muséum national d'Histoire naturelle 204:155-189, ISBN:978-2-85653-692-6
Abstract [+] [-]During the recent Taiwan TAIWAN and the Philippines PANGLAO 2005 and AURORA deep-sea expeditions, many specimens of nematocarcinid shrimp were collected. Altogether three genera and 13 species are identified: Nigmatullinus acanthitelsonis (Pequegnat, 1970), Segonzackomaius altus (Bate, 1888), Nematocarcinus chacei Burukovsky, 2002, N. combensis Burukovsky, 2000, N. crosnieri Burukovsky, 2000, N. gracilis Bate, 1888, N. productus Bate, 1888, N. rectirostris Burukovsky, 1991, N. richeri Burukovsky, 2000, N. subtegulisfactus Burukovsky, 2000, N. subtilis Burukovsky, 2000, N. tenuipes Bate, 1888 and N. tenuirostris Bate, 1888. Amongst them, S. altus, N. chacei and N. crosnieri are the second records since their original descriptions. Moreover, two genera and 11 species are new records for Taiwan while two species are new Philippine records. Diagnoses for the family, subfamilies, and genera and a key to all species of Nematocarcinus A. Milne-Edwards, 1881 are given. Colour photographs of 10 species are also provided. The studied area was subdivided into northern and southern subareas. The northern area includes the waters around Taiwan (21°18’-25°22’N and 117°17’-123°01’E), and the southern area the waters of the Philippines (08°33’-16°06’N and 121°30’-124°10’E). Five species occur in both subareas. A comparison of the present data with the known data on the nematocarcinid shrimp fauna of the Indo-Malay area or East Indies Triangle (i.e. the centre of species diversity of shrimps of family Nematocarcinidae) revealed that the area between Taiwan and the northern Philippines is an ecotone, with a transitional nematocarcinid shrimp fauna between the fauna of the East Indies Triangle and the typical Indo-West-Pacific fauna.
Accessible surveys cited (5) [+] [-]
Associated collection codes: IU (Crustaceans) -
Cabezas P. & Chan T.Y. 2014. Deep-sea squat lobsters of the genus Paramunida Baba, 1988 (Crustacea: Decapoda: Munididae) from the Philippines Panglao 2004, Panglao 2005 and Aurora 2007 expeditions, with the description of three new species. Raffles Bulletin of Zoology 62: 302–316
Abstract [+] [-]The genus Paramunida belongs to the family Munididae, one of the most speciose families among anomuran decapod crustaceans. During the PANGLAO 2004, PANGLAO 2005, and AURORA 2007 expeditions in the Philippines, eight species of the genus were collected, including a new record and three new species, namely Paramunida akaina, P. aspera, and P. aurora. These new lineages are distinguished by subtle and constant morphological differences, which are in agreement with molecular evidence from the mitochondrial markers ND1 and 16S. Here, we describe these new species, provide new distribution records, and present phylogenetic relationships within the genus.
Accessible surveys cited (6) [+] [-]
Associated collection codes: IU (Crustaceans) -
Campbell M.A., Chanet B., Chen J., Lee M. & Chen W. 2019. Origins and relationships of the Pleuronectoidei: Molecular and morphological analysis of living and fossil taxa. Zoologica Scripta 48(5): 640-656. DOI:10.1111/zsc.12372
Abstract [+] [-]Flatfishes (Pleuronectiformes) are a species‐rich and distinct group of fishes characterized by cranial asymmetry. Flatfishes occupy a wide diversity of habitats, including the tropical deep‐sea and freshwaters, and often are small‐bodied fishes. Most scientific effort, however, has been focused on large‐bodied temperate marine species important in fisheries. Phylogenetic study of flatfishes has also long been limited in scope and focused on the placement and monophyly of flatfishes. As a result, several questions in systematic biology have persisted that molecular phylogenetic study can answer. We examine the Pleuronectoidei, the largest suborder of Pleuronectiformes with >99% of species diversity of the order, in detail with a multilocus nuclear and mitochondrial data set of 57 pleuronectoids from 13 families covering a wide range of habitats. We combine the molecular data with a morphological matrix to construct a total evidence phylogeny that places fossil flatfishes among extant lineages. Utilizing a time‐calibrated phylogeny, we examine the timing of diversification, area of origin and ancestral temperature preference of Pleuronectoidei. We find polyphyly or paraphyly of two flatfish families, the Paralichthyidae and the Rhombosoleidae, and support the creation of two additional families—Cyclopsettidae and Oncopteridae—to resolve their non‐monophyletic status. Our findings also support the distinctiveness of Paralichthodidae and refine the placement of that lineage. Despite a core fossil record in Europe, the observed recent diversity of pleuronectoids in the Indo‐West Pacific is most likely a result of the Indo‐West Pacific being the area of origin for pleuronectoids and the ancestral temperature preference of flatfishes is most likely tropical.
Accessible surveys cited (4) [+] [-]
Associated collection codes: IC (Ichthyology) -
Castro P. 2013. Brachyuran crabs (Crustacea, Brachyura: Crossotonotidae, Ethusidae, Euryplacidae, Goneplacidae, Latreilliidae, Palicidae, Tetraliidae, Trapeziidae) of the MAINBAZA, MIRIKI, and ATIMO VATAE expeditions to the Mozambique Channel and Madagascar, in Ahyong S.T., Chan T.Y., Corbari L. & Ng P.K.(Eds), Tropical Deep-Sea Benthos 27. Mémoires du Muséum national d'Histoire naturelle 204:437-466, ISBN:978-2-85653-692-6
Abstract [+] [-]Material, mostly deep-water, belonging to eight families of brachyuran crabs are listed from the MAINBAZA, MIRIKI, and ATIMO VATAE expeditions to the Mozambique Channel and northwestern and southern Madagascar. A new species of Ethusa Roux, 1830 (Ethusidae), unique for its vivid colouration and collection in shallow water 13-22 m deep, is described from southern Madagascar. Sphenomerides trapezoides (Wood-Mason & Alcock, 1891) (Trapeziidae) is for the first time recorded from a host, a sponge, and the presence of mucus-gathering setae are for the first time demonstrated in this rarely collected species. A neotype for Dorippe sexdentata Stimpson, 1858 (Ethusidae) is designated to stabilise the taxonomy of the species. The male and the vulva of Ethusa machaera Castro, 2005, and the vulva of E. sexdentata (Stimpson, 1858) are described for the first time. Five species are new records for Madagascar: Crossotonotus spinipes (De Man, 1888) (Crossotonotidae); Carcinoplax ischurodous (Stebbing, 1923), Goneplax clevai Guinot & Castro, 2007, and Ommatocarcinus pulcher Barnard, 1950 (Goneplacidae); and Pseudopalicus sexlobatus (Kensley, 1969) (Palicidae); while Ethusina somalica (Doflein, 1904) (Ethusidae) is a new record for the southwestern Indian Ocean.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan B.K.K. & Chen Y.H. 2022. Distinguishing Long-Discussed Cryptic Species of the Epibiotic Goose-Neck Barnacle of the Genus Conchoderma (Thoracicalcarea: Lepadidae) with Integrative Taxonomy. Diversity 14(8): 593. DOI:10.3390/d14080593
Abstract [+] [-]Naked goose neck barnacles Conchoderma can grow on a wide variety of marine organisms. The taxonomic status of two of its species—C. virgatum and C. hunteri—are currently controversial. Some studies suggest that C. hunteri is a subspecies, variety or growth forms of C. virgatum, because both have great morphological variations, but other studies consider C. hunteri and C. virgatum to be distinct species. The present study examines the morphology and sequence divergence of the COI gene in C. virgatum, C. hunteri and other closely related species. There are consistent morphological differences between C. virgatum and C. hunteri in the tergum, carina and fifth teeth of the mandible. Phylogenetic analysis based on the divergence in the COI gene revealed that C. virgatum and C. hunteri form sister clades with high bootstrap values. The K2P distances within C. hunteri and C. virgatum are 0.034 ± 0.008 and 0.002 ± 0.001 for the COI sequences, respectively. The K2P distance between C. hunteri and C. virgatum is 0.097 ± 0.016. Morphological and molecular evidence confirm that C. hunteri is a valid species.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan B.K., Prabowo R.E. & Lee K.S. 2010. North West Pacific deep-sea barnacles (Cirripedia, Thoracica) collected by the TAIWAN expeditions, with descriptions of two new species. Zootaxa 2405: 1–47
Abstract [+] [-]Taiwan is a large island in north western Pacific waters with the sea floor connecting to two major deep-sea basins, the eastern waters facing the Pacific Ocean (to 4000 m depth) and linking to the Philippine Basin, whilst south western waters are associated with the South China Sea Basin (up to 1000 m). Previously, the biodiversity of Taiwanese deep-sea barnacles had not been studied extensively, due to a lack of deep-sea expeditions and sampling. Recently, several TAIWAN deep-sea cruises investigated the biodiversity of the deep-sea fauna of Taiwan and sampling was conducted to depths of 4000 m. The present study reports on the biodiversity of the deep-sea barnacles of Taiwan, a total of 18 species. One species was previously recorded from Taiwanese waters and 17 are new records, including two new species belong to the genera Litoscalpellum and Altiverruca.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan B.K., Kolbasov G.A. & Cheang C.C. 2012. Cryptic diversity of the acrothoracican barnacle Armatoglyptes taiwanus in the Indo-Pacific waters, with description of a new species from the Mozambique Channel collected from the MAINBAZA cruise. Zoosystema 34(1): 5-20. DOI:10.5252/z2012n1a1
Abstract [+] [-]Cirripedes of the superorder Acrothoracica are normally found as epizoic borings on marine calcareous substrates. Armatoglyptes taiwanus (Utinomi, 1950) is a lithoglyptid acrothoracican barnacle reported from different parts of the Indo-Pacific. Recent studies have demonstrated phylogenetic breaks between the Indian and Pacific Oceans populations in widespread Indo-Pacific marine organisms due to isolation events during the Pleistocene glaciations. It is possible that A. taiwanus represents a cryptic species complex in the Indo-Pacific, which the previous studies have failed to identify from morphology alone. In the present study, we analyzed the morphology and the sequence divergence of the 12S rDNA of A. taiwanus from the Indo-Pacific region, including Taiwan and the Philippines in the Pacific, and Phuket Island (Thailand) and the Mozambique Channel in the Indian Ocean, to test whetherA. taiwanus is a cryptic species across its geographical range. The results showed that A. taiwanus has a homogeneous population structure in Taiwan, the Philippines, and Phuket Island (sequence divergence < 1%). Specimens from the Mozambique Channel, although morphologically similar to A. taiwanus, have a greater sequence divergence of 9.4% from A. taiwanus in the Pacific, and thus appeared to represent a new species, described herein as Armatoglyptes flexuosus n. sp. Although both species are morphologically similar, A. flexuosus n. sp. has more strongly bent/recurved posterior processes of the opercular bars and feebler armament of the orificial knob than does A. taiwanus from Taiwan (type locality). Phylogenetic analysis showed that populations of A. flexuosus n. sp. from the Mozambique Channel and A. taiwanus from the Pacific region are indeed closely related. Populations of their common ancestor may have become isolated and underwent speciation during the Pleistocene glaciations.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan B.K., Chen H.N. & Yu J.H.Y. 2013. New species of barnacles associated with antipatharian corals of the genus Oxynaspis Darwin, 1852 (Crustacea, Cirripedia, Lepadiformes) from the Philippines and Taiwan, in Ahyong S.T., Chan T.Y., Corbari L. & Ng P.K.(Eds), Tropical Deep-Sea Benthos 27. Mémoires du Muséum national d'Histoire naturelle 204:67-84, ISBN:978-2-85653-692-6
Abstract [+] [-]Two new Oxynaspis species associated with antipatharian corals are described from the AURORA expedition in the Philippines and from Taiwan waters. Oxynaspis auroraensis n. sp. was collected from the Philippines at more than 500 m depth and belongs to the fully armored group of Oxynaspis. The umbo of the carina of O. auroraensis n. sp. is located in a proximal position with the carinal distal arm about 3.5 times longer than the basal arm. Such a position is diagnostic, distinguishing this species from all previously described Oxynaspis species. Oxynaspis biradius n. sp. was collected from Taiwanese waters at 20-30 m depth and belongs to the reduced scutum group of Oxynaspis. The morphology of O. biradius n. sp. is close to that of O. joankovenae Van Syoc & Delkelboum, 2011, but differs in having two distinct white rays on the scutum and a more pointed tergal spur. From molecular analysis in the sequence divergence of the 12S and COI region, O. auroraensis n. sp. and O. biradius n. sp. form distinct monophyletic clades and the interspecific divergence suggests that these two species are distinct.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan B.K., Corbari L., Rodriguez moreno P.A. & Jones D.S. 2014. Two new deep-sea stalked barnacles, Arcoscalpellum epeeum sp. nov. and Gymnoscalpellum indopacificum sp. nov., from the Coral Sea, with descriptions of the penis in Gymnoscalpellum dwarf males. Zootaxa 3866(2): 261-276. DOI:10.11646/zootaxa.3866.2.5
Abstract [+] [-]The present study describes a new species of Arcoscalpellum Hoek, 1907, and a new species of Gymnoscalpellum Newman & Ross, 1971, collected by deep-sea expeditions led by the Muséum national d’Histoire naturelle (Paris) in the Coral Sea off New Caledonia, Papua New Guinea (PNG), the Solomon Islands and Vanuatu. Arcoscalpellum epeeum sp. Nov. Differs from all described species of Arcoscalpellum by the presence of a long, sharp, sword-shaped carina, which extends beyond the apices of the terga by 1/3 to 1/4 of their length. The species is dioecious, with large females and dwarf males that are sac-like, lack shell plates and are housed in paired receptacles at the inner edges of the scutal plates. Arcoscalpellum epeeum sp. Nov. Was collected in the waters of New Caledonia and Vanuatu. Gymnoscalpellum indopacificum sp. Nov. Differs from the six currently described species of Gymnoscalpellum by having a very small inframedian latus and a branched upper latus. The species is dioecious, with large females and dwarf males, the latter composed of 4 shell plates and housed in paired receptacles at the inner edges of the scutal plates. The penis of the dwarf males of G. indopacificum sp. Nov. Is about 0.8 of the total length of the male and has five side branches extending out along its length. Gymnoscalpellum indopacificum sp. Nov. Is distributed in the waters of Papua New Guinea, the Solomon Islands and Vanuatu, and represents the first record of this genus in the Indo-Pacific region.
Accessible surveys cited (15) [+] [-]BATHUS 2, BIOCAL, BIOPAPUA, BOA1, EBISCO, MUSORSTOM 4, MUSORSTOM 5, MUSORSTOM 6, MUSORSTOM 8, NORFOLK 1, NORFOLK 2, SALOMON 1, SMIB 2, SMIB 4, SMIB 8
Associated collection codes: IU (Crustaceans) -
Chan B.K., Chen H.N., Rodriguez moreno P.A. & Corbari L. 2016. Diversity and biogeography of the little known deep-sea barnacles of the genus Waikalasma Buckeridge, 1983 (Balanomorpha: Chionelasmatoidea) in the Southwest Pacific, with description of a new species. Journal of Natural History 50(47-48): 2961-2984. DOI:10.1080/00222933.2016.1226445
Accessible surveys cited (6) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan B.K., Chen Y.Y., Achituv Y. & Lin H.C. 2017. Description of five new coral associated Barnacles of the genus Trevathana (Balanomorpha: Pyrgomatidae) in Pacific Waters. Zootaxa 4363(2): 151-202. DOI:10.11646/zootaxa.4363.2.1
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan B.K. & Liu J.C.W. 2017. Galkinius Perreault, 2014 or Darwiniella (Anderson, 1992)? A new coral-associated barnacle sharing characteristics of these two genera in Pacific waters (Crustacea, Cirripedia, Thoracica, Pyrgomatidae). ZooKeys 719: 1-22. DOI:10.3897/zookeys.719.12471
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan B.K., Corbari L., Rodriguez moreno P.A. & Tsang L.M. 2017. Molecular phylogeny of the lower acorn barnacle families (Bathylasmatidae, Chionelasmatidae, Pachylasmatidae and Waikalasmatidae)(Cirripedia: Balanomorpha) with evidence for revisions in family classification. Zoological Journal of the Linnean Society 180: 542-555
Accessible surveys cited (16) [+] [-]ATIMO VATAE, BIOPAPUA, BORDAU 1, BORDAU 2, EBISCO, EXBODI, MUSORSTOM 10, MUSORSTOM 8, NORFOLK 1, NORFOLK 2, SALOMON 1, SALOMON 2, SANTO 2006, SMIB 3, SMIB 5, TARASOC
Associated collection codes: IU (Crustaceans) -
Chan B.K. & Rodriguez moreno P.A. 2020. A new deep-sea barnacle, Calantica australpacifica sp. nov. (Scalpelliforms: Calanticidae) in the South Pacific: first report on the presences of dwarf males on the sub-rostral position in Calantica, Deep-Sea Crustaceans from Papua New Guinea - Tropical Deep-Sea Benthos 31. Mémoires du Muséum national d'histoire naturelle Tome 213. Publications scientifiques du Muséum national d'histoire naturelle, Paris:445-460, ISBN:978-2-85653-913-2
Abstract [+] [-]The present study identified a new Calantica species from the deep-sea of the Papua New Guinea. Calantica australpacifica sp. nov. has 13 capitular plates (S-T surrounded by R-RL-L-CL-C-SC) and these plates are arranged in two horizontal whorls and with small degree of plate overlapping in the large hermaphrodites. There are some hermaphroditic individuals have asymmetrical plate arrangement, with additional CL and L on one side. Sexual system of C. australpacifica sp. nov. is androdieocy, with large hermaphrodite being accompanied by dwarf males (with well-developed penis but absences of ovarian tissue) that are often located on the sub-rostral position of the peduncle. Dwarf males are differentiated into peduncle and capitulum. Lateral side of the basal portion of dwarf male peduncle attached to the large hermaphrodite, result in one lateral side of the dwarf male facing the hermaphrodite and vice versa. Capitulum of dwarf males with asymmetrical plate arrangement. The lateral side of dwarf males opposing away from the hermaphrodite has S-T surrounded by R-RL-L-CL-C-SC and the lateral side facing the hermaphrodite composed of S-T, without RL, L and CL. This is the first report on the location of dwarf males on sub-rostral position in Calantica, rather than in the supra-oral position within the capitulum. Morphology of C. australpacifica cannot be assigned to the present 4 morphological groups of Calantica and represent a new group and new species.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T.Y. & Yu H.P. 1991. Eugonatonotus chacei sp. nov., second species of the genus (Crustacea, Decapoda, Eugonatonotidae). Bulletin du Muséum national d'Histoire naturelle, 4° série, Section A 13(1-2): 143-152
Abstract [+] [-]The Indo-West-Pacific material previously identified as Eugonatonotus crassus (A. Milne Edwards, 1881) is found to be distinct from the typical form in the tropical Western Atlantic by bearing an extra pair of spines at the fifth abdominal tergite. The new form, named E. chacei sp. nov., is described and a holotype selected from Taiwanese material. The morphological differences between the two species are listed and discussed and their coloration is illustrated.
Accessible surveys cited (9) [+] [-]BIOCAL, CHALCAL 2, CORAIL 2, MUSORSTOM 2, MUSORSTOM 3, MUSORSTOM 4, MUSORSTOM 5, MUSORSTOM 6, SMIB 2
Associated collection codes: IU (Crustaceans) -
Chan T.Y. 1996. Crustacea Decapoda Crangonidae : revision of the three closely related genera Aegaeon Agassiz 1846, Pontocaris Bate, 1888 and Parapontocaris Alcock 1901, in Crosnier A.(Ed.), Résultats des campagnes MUSORSTOM 15. Mémoires du Muséum national d'Histoire naturelle 168:269-336, ISBN:2-85653-501-1
Abstract [+] [-]The species of Pontocaris Bate, 1888, and related genera, Aegaeon Agassiz, 1846 and Parapontocaris Alcock, 1901, are reviewed based on the abundant samples collected by ORSTOM (Institut français de Recherche scientifique pour le Développement en Coopération), the Muséum national d'Histoire naturelle, the Forschungsinstitut Senckenberg, and the National Taiwan Ocean University, as well as those deposited at other museums and institutions. Altogether 21 species and one subspecies are recognized which appear to form three natural groups. The genus Parapontocaris Alcock, 1901 is retained for the 6 species assigned to it by CHACE (1984), but different characters are used to differentiate them. An interlocking mechanism between the posterior thoracic sternites and the carapace is found in all species of the Pontocaris propensalata group, but not in the others. Furthermore, females of this group can modify their pereiopods, probably for the care of the eggs, when they molt for spawning. Such modification of the pereiopods is unique in the carideans according to present knowledge. Thus, the genus Pontocaris Bate, 1888, is now restricted to the species of this group and BRUCE'S (1988) Pontocheras becomes a junior synonym of the former. At present 10 species and one subspecies are recognized in this group, with the names P. affinis (Alcock, 1901) and P. hilarula (de Man, 1918) revived and four new species and one new subspecies described : P. major from the Philippines, P. laurentae and P. spinifera from Indonesia, P. profundior from the Red Sea and Gulf of Aden, and P. affinis allodactylus from the Red Sea. The name Aegaeon Agassiz, 1846 is revived for five species with characters intermediate between Parapontocaris and Pontocaris (as defined here), namely A. cataphractus (Olivi, 1792), A. lacazei (Gourret, 1887), A. orientalis Henderson, 1893, A. rathbuni de Man, 1918 and A. boschii (Christoffersen, 1988). Keys for distinguishing these three genera and the identification of the species are provided. The distribution and evolution, as well as sexual dimorphism and polymorphism in females, of these species are briefly discussed. Both the morphological characters and distribution patterns suggest that the genus Parapontocaris is relatively more ancient and has a typical Tethys distribution. On the other hand, species of Pontocaris possess many advanced characters and are still actively evolving in the Indo-West Pacific. The intermediate genus Aegaeon probably forms a link between the above two genera and has successfully invaded the Atlantic from the original Indo-West Pacific distribution.
Accessible surveys cited (17) [+] [-]BIOCAL, BIOGEOCAL, CHALCAL 1, CHALCAL 2, CORAIL 2, CORINDON 2, HALIPRO 1, KARUBAR, LAGON, MUSORSTOM 1, MUSORSTOM 2, MUSORSTOM 3, MUSORSTOM 4, MUSORSTOM 5, MUSORSTOM 6, SMIB 6, VAUBAN 1978-1979
Associated collection codes: IU (Crustaceans) -
Chan T.Y. & Crosnier A. 1997. Crustacea Decapoda: Deep sea shrimps of the genus Plesionika Bate, 1888 (Pandalidae) from French polynesia, with description of five new species, in Crosnier A.(Ed.), Résultats des campagnes MUSORSTOM 18. Mémoires du Muséum national d'Histoire naturelle 176:187-234, ISBN:2-85653-511-9
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T.Y. 1997. Crustacea Decapoda: Palinuridae, Scyllaridae and Nephropidae collected in Indonesia by the KARUBAR Cruise, with an identification key for the species of Metanephrops, in Crosnier A. & Bouchet P.(Eds), Campagne Franco-Indonésienne KARUBAR - Résultats des campagnes MUSORSTOM 16. Mémoires du Muséum national d'Histoire naturelle 172:409-431, ISBN:2-85653-506-2
Abstract [+] [-]The KARUBAR cruise in 1991 collected a number of deep-sea lobster specimens from Indonesia. The material is found to contain five species of palinurids, five species of scyllarids and 11 species of nephropids. Although no new species were found, the KARUBAR material extends the known distributions for many species, such as Linuparus trigonus (von Siebold, 1824), Palinustus unicornutus Berry, 1979, lbacus pubescens Holthuis, 1960, I. novemdentatus Gibbes, 1850, Nephropsis acanthura Macpherson, 1990, N. holthuisi Macpherson, 1993,N. serrata Macpherson, 1993, N. stewarti Wood-Mason, 1872, N. sulcata Macpherson, 1990, and Metanephrops australiensis (Bruce, 1966). The most interesting finding is a complete specimen of Metanephrops arafurensis (de Man, 1905), which was previously known only from a mutilated type. Together with the additional knowledge gained of the characteristics of the other Metanephrops species, their relationships are discussed and a revised key to the species of this genus is provided.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T.Y. & De saint laurent M. 1999. The Rare Lobster Genus Thaumastocheles (Decapoda: Thaumastochelidae) from the Indo-Pacific, with Description of a New Species. Journal of Crustacean Biology 19(4): 891-901. DOI:10.2307/1549308
Abstract [+] [-]Abundant material of the rare lobster genus Thaumastocheles, recently collected from Taiwan, led to an extensive survey of the Indo-Pacific specimens of this genus deposited at various institutions. Altogether 82 specimes of Thaumastocheles from the Indo-Pacific (Madagascar to Japan and New Caledonia at depths of 70-1,753 m) were examined and 2 distinct species are recognized. The 2 species, T. japonicus Calman, 1913, and T dochmiodon, new species, differ mainly in the shape of the cutting teeth of the first chelae and the lateral carinae of the abdominal tergites. Both species are found in Japan, Taiwan, and the South China Sea.
Accessible surveys cited (4) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T.Y. & Ng P.K. 2008. Enoplometopus A. Milne-Edwards, 1862 (Crustacea: Decapoda: Nephropoidea) from the Philippines, with description of one new species and a revised key to the genus. Bulletin of Marine Science 83(2): 347–365
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T.Y., Ho K.C., Li C.P. & Chu ka hou 2009. Origin and diversification of the clawed lobster genus Metanephrops (Crustacea: Decapoda: Nephropidae). Molecular Phylogenetics and Evolution 50(3): 411-422. DOI:10.1016/j.ympev.2008.11.020
Abstract [+] [-]A phylogenetic analysis of all 17 extant species of the clawed lobster genus Metanephrops based on mitochondrial 12S rRNA, 16S rRNA and cytochrome c oxidase 1, and nuclear histone H3 gene sequences supports the morphological groupings of two of the traditional groups of the genus (the binghami and japonicus groups) but refutes monophyly of the other two groups (the arafurensis and thomsoni groups). The results in general support a recent morphology-based cladistic analysis of this genus except that this study suggests M. neptunus to be a basal rather than a derived species as indicated in the morphological analysis. This species is genetically diverse over its geographical range. Moreover, the two color forms of M. thomsoni are genetically distinct, most likely representing different species. The molecular phylogeny and current distribution pattern of the extant species, together with the fossil record. suggest that the genus originated in the Antarctica in the Cretaceous, followed by diversification and dispersal along the continental shelf of different continents as a result of the vicariant events associated with the breakup of the Southern Temperate Gondwana since Late Cretaceous. (C) 2008 Elsevier Inc. All rights reserved.
Accessible surveys cited (4) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T.Y., Lei H.C., Li C.P. & Chu ka hou 2010. Phylogenetic analysis using rDNA reveals polyphyly of Oplophoridae (Decapoda : Caridea). Invertebrate Systematics 24(2): 172. DOI:10.1071/IS09049
Abstract [+] [-]Molecular phylogenetic analysis on nine of the ten genera in the caridean family Oplophoridae Dana, 1852, as well as 14 other caridean families using mitochondrial 16S and nuclear 18S rRNA genes, does not support the monophyletic status of Oplophoridae. Two disparate groups of oplophorids are revealed, with different morphological characters and ecology. It is proposed that the family Oplophoridae is restricted to the three genera Oplophorus, Systellaspis and Janicella. These three genera tend to be distributed in shallower water than the other oplophorid genera, and can also be distinguished from them by certain morphological characters. They have a thicker integument, superficial cuticular photophores and larger eyes, and the molar process of their mandibles is greatly reduced or bears a deep channel. The family Acanthephyridae Bate, 1888 is resurrected for the other seven genera, which are generally distributed in deeper water and are characterised by red soft integument, no cuticular photophores, smaller eyes and well-developed molar process of the mandibles without a deep channel. The relationships between these two families and other caridean families could not be clearly resolved in this study.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T.Y. 2012. A new genus of Deep-Sea Solenocerid shrimp (Decapoda : Penaeidea) from Papau New-Guinea. Journal of Crustacean Biology 32(3): 489-495. DOI:10.1163/193724012X626557
Abstract [+] [-]A new genus and species of deep-sea shrimp, Maximiliaeus odoceros, was collected from the Solomon Sea off Papua New Guinea. This penaeoid has a characteristic carapace: bearing large teeth on its entire dorsal border, and the presence of three parallel carinae that nearly run the entire length of the lateral carapace surface. Phylogenetic analysis using PEPCK and NaK sequences confirmed that this new taxon belongs to Solenoceridae.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T.Y. 2016. New records of the rare pandalid shrimp Plesionika exigua (Rathbun, 1906 (Crustacea: Decapoda: Caridea) in the western Pacific. Zootaxa 4205(1): 97-100. DOI:10.11646/zootaxa.4205.1.11
Abstract [+] [-]The rare species Plesionka exigua (Rathbun, 1906) is recorded for the first time from three western Pacific localities New Caledonia, Vanuatu and Ryukyu Islands of Japan. Redescription, illustrations on distinguishing characters and color photograph are provided for this poorly known species.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T.Y., Cleva R. & Chu K.H. 2016. On the genus Trachysalambria Burkenroad, 1934 (Crustacea, Decapoda, Penaeidae), with descriptions of three new species. Zootaxa 4150(3): 201-254. DOI:10.11646/zootaxa.4150.3.1
Accessible surveys cited (17) [+] [-]ATIMO VATAE, AURORA 2007, BIOPAPUA, BORDAU 2, CORINDON 2, Restricted, LAGON, MD32 (REUNION), MIRIKY, MUSORSTOM 1, MUSORSTOM 10, MUSORSTOM 3, MUSORSTOM 7, PANGLAO 2005, Restricted, SANTO 2006, Restricted
Associated collection codes: IU (Crustaceans) -
Chan T.Y., Kumar A.B. & Yang C.H. 2017. Photophore counts in the deep-sea commercial shrimp Aristeus alcocki Ramadan, 1938 (Crustacea: Decapoda: Aristeidae), with a revised key to the Indo-West Pacific species of the genus. Zootaxa 4329(4): 392-400. DOI:10.11646/zootaxa.4329.4.5
Abstract [+] [-]The availability of abundant fresh material of Aristeus alcocki Ramadan, 1938 from India allowed the evaluation of the variation in the numbers of photophores on the pereiopods in this species, as well as other diagnostic characters for species discrimination. Although the pereiopodal photophore counts in A. alcocki largely overlap with those of A. semidentatus Bate, 1888, it is found that A. alcocki is unique in the Indo-West Pacific species of the genus by the lower end of the cervical carina considerably farther away from the branchiostegal carina. Molecular genetic analysis confirmed the distinct taxonomic status of the six currently known species in this genus from the Indo-West Pacific and a revised key is provided for distinguishing them.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T.Y., Richer de forges B. & Barazer J.F. 2017. Ship-based collection of large crustaceans. Journal of Crustacean Biology 37(4): 481-489. DOI:10.1093/jcbiol/rux032
Abstract [+] [-]The French MUSORSTOM expeditions (now Tropical Deep-Sea Benthos), have successfully collected since 1976 rich samples of large, benthic crustaceans using oceanographic vessels to depths of about 5,000 m. The ship-based collecting techniques and gear used by these expeditions are described. These include the use of echosounders, dredging, trawling, and trapping. Also discussed are techniques for onboard specimen sorting and photography.
Accessible surveys cited (4) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T.Y., Chakraborty R.D., Purushothaman P., Kuberan G. & Yang C.H. 2018. On Plesionika persica (Kemp, 1925) and P. reflexa Chace, 1985 (Crustacea: Decapoda: Pandalidae) from India. Zootaxa 4382(3): 583-591. DOI:10.11646/zootaxa.4382.3.9
Abstract [+] [-]The availability of Indian specimens of Plesionika persica (Kemp, 1925) and P. reflexa Chace, 1985 provided more information on the taxonomy around these two species. Moreover, it is the first record of P. persica to India. Although P. taiwanica Chan and Yu, 2000 is superficially rather similar to P. persica, there are many differences between them and probably it is inappropriate to establish a species group for these two species. It is likely that all previous records of P. ensis (A. Milne-Edwards, 1881) from India actually represent P. reflexa Chace, 1985. Nevertheless, the present Indian specimens of P. reflexa have more than 10% COI sequence divergence from the topotypic materials of both P. ensis and P. reflexa, and the epipods at the pereiopods III and IV reduced or absent. This data further highlights the confusing taxonomy in the “P. ensis” group.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T.Y. 2020. Sicyonella liui sp. nov., a new sergestid shrimp (Decapoda, Dendrobranchiata) discovered from Madagascar. Crustaceana 93(11-12): 1383-1390
Abstract [+] [-]A new species of the sergestid shrimp genus Sicyonella Borradaile, 1910 was discovered in a recent expedition to southern Madagascar. The presence of Sicyonella in Madagascar is also a new genus record for the country. The new species has the petasma and thelycum very different from the three known species of the genus, and is also unique in the basal part of the mesial antennular flagellum not being modified in males.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T. & Crosnier A. 1991. Crustacea Decapoda: Studies of the Plesionika narval (Fabricius, 1787) group (Pandalidae) with descriptions of six new species, Résultats des campagnes MUSORSTOM 9. Mémoires du Muséum national d'Histoire naturelle 152:413-461, ISBN:2-85653-191-1
Abstract [+] [-]Samples collected by ORSTOM (Institut de Recherche Scientifique pour le Developpement en Cooperation), Service Mixte de Contrôle Biologique des Armees (SMCB) and the National Taiwan Ocean University in the Indo-West Pacific (off Madagascar, Seychelles Islands, Taiwan, Philippines, Indonesia, Chesterfield Islands, New Caledonia and Polynesia) as well as others obtained on loan from various museums led to a reexamination of the species belonging to the Plesionika narval group. Fourteen species are recognized of which 6 are new : P. yui from Taiwan, P. echinicola from New Caledonia, P. laurentae from New Caledonia and Eastern Australia, P. flavicauda from New Caledonia and Polynesia, P. rubrior and P. curvata from Polynesia. P. escalilis (Stimpson, 1860) is considered to be a synonym of P. narval. The specimens from the Atlantic identified as STIMPSON'S species by LEMAITRE and GORE (1988) are identified as P. longicauda (Rathbun, 1901). P. narval and P. serratifrons (Borradaile, 1900) are considered as distinct species but so similar that finding reliable characters to separate them is very difficult especially as individual variations are observed. P. narval is presently regarded as living only in the Mediterranean and Eastern Atlantic (from Spain to Cape Verde Islands) but it appears South-West Pacific and with a rather restricted distribution. A key mainly for adults is offered for the identification of the species of this group. As coloration very often seems to be a reliable character for identifying fresh specimens, color photographs are included. Unfortunately it was not possible to obtain information on the coloration of all the species and consequently this character could only be used rarely in the key.
Accessible surveys cited (17) [+] [-]BIOCAL, CHALCAL 1, CHALCAL 2, CORAIL 2, LAGON, MUSORSTOM 1, MUSORSTOM 3, MUSORSTOM 4, MUSORSTOM 5, MUSORSTOM 6, SMCB, SMIB 2, SMIB 3, SMIB 4, SMIB 5, VAUBAN 1978-1979, VOLSMAR
Associated collection codes: IU (Crustaceans) -
Chan T. & Chuang S.C. 2002. A New Shrimp Species Of Plesionika Bate, 1888 With High Basal Rostral Crest (Crustacea : Decapoda : Pandalidae) From Taiwan. Proceedings of the Biological Society of Washington 115(3): 611-615
Abstract [+] [-]A new shrimp species of the genus Plesionika Bate, 1888 is described based on specimens collected in deep-water off eastern Taiwan. The new species, P. albocristata, can be readily distinguished from other species of the genus by bearing a high basal rostral crest, having the second pereiopods subequal, and the telson bearing four pairs of dorsolateral spines. A brief discussion on the affinities of this new species is given.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T. 2004. The ‘‘Plesionika rostricrescentis (Bate, 1888)’’ and ‘‘P. lophotes Chace, 1985’’ species groups of Plesionika Bate, 1888, with descriptions of five new species (Crustacea: Decapoda: Pandalidae), in Marshall B.A. & Richer de forges B.(Eds), Tropical Deep-Sea Benthos 23. Mémoires du Muséum national d'Histoire naturelle 191:293-318, ISBN:2-85653-557-7
Abstract [+] [-]Before the present study, Plesionika rostricrescentis (Bate, 1888) and P. lophotes Chace, 1985 were the two Plesionika species unique in having a high basal rostral crest. A recently described species, P. erythrocyclus Chan & Crosnier, 1997 has a low basal rostral crest but is evidently related to P. rostricrescentis. Close examination of the abundant material collected during the MUSORSTOM expeditions and from Taiwan revealed that there are at least eight species in this ‘‘P. rostricrescentis-P. lophotes’’ species complex. These taxa are morphologically very similar but can be distinguished by their very distinctive colorations, which are often striking and consist of large circular spots. In the ‘‘P. rostricrescentis’’ group, which has the dorsal margin of the rostrum unarmed between the anteriormost tooth of the basal rostral crest and the subapical teeth, five species are recognized. Plesionika rostricrescentis is still known only by the holotype from the Kai Islands. Two new species, P. hsuehyui and P. suffusa, closely similar to P. rostricrescentis, are described. Plesionika hsuehyui is widely distributed from Taiwan to Fiji, while P. suffusa has only been found off New Caledonia. Plesionika erythrocyclus, previously known only from Taiwan and French Polynesia, occurs widely in the southern Pacific. Another new species, P. bimaculata, which closely resembles P. erythrocyclus, is distributed off New Caledonia and in adjacent areas. Three species are recognized in the ‘‘P. lophotes’’ group, which bear dorsal rostral teeth between the basal rostral crest and subapical teeth. Plesionika lophotes is restricted to the area between Japan and northwestern Australia. Two further closely similar new species, P. rufomaculata and P. scopifera are described, the former widely distributed from Okinawa to Futuna Island, the latter only off New Caledonia and Tonga. Although coloration is very important in distinguishing these species, species with similar color patterns do not necessarily belong to the same species group. Morphologically, these species are mainly separated by the height of the basal rostral crest, the number of rostral teeth, and the length of the stylocerite and the dactyli of the posterior three pereiopods. However, there is sexual dimorphism in the development of the basal rostral crest in these species, sometimes making positive identification of males and young specimens difficult.
Accessible surveys cited (29) [+] [-]BATHUS 2, BATHUS 3, BATHUS 4, BERYX 11, BIOCAL, BORDAU 1, BORDAU 2, CHALCAL 1, CHALCAL 2, HALICAL 1, LAGON, LITHIST, MUSORSTOM 3, MUSORSTOM 4, MUSORSTOM 5, MUSORSTOM 6, MUSORSTOM 7, MUSORSTOM 8, NORFOLK 1, SMIB 2, SMIB 3, SMIB 4, SMIB 5, SMIB 6, SMIB 8, TAIWAN 2000, TAIWAN 2001, TAIWAN 2002, VOLSMAR
Associated collection codes: IU (Crustaceans) -
Chan T., Mitsuhashi M., Fransen C.H., Cleva R. & Tan S.K. 2011. Focus on a selected biota : unusual and specular crustaceans, in Bouchet P., Le guyader H. & Pascal O.(Eds), The natural History of Santo. Patrimoines Naturels 70:410-420
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chan T., Ma K.Y. & Chu K.H. 2013. The deep-sea spiny lobster genus Puerulus Ortmann, 1897 (Crustacea, Decapoda, Palinuridae), with descriptions of five new species, in Ahyong S.T., Chan T., Corbari L. & Ng P.K.(Eds), Tropical Deep-Sea Benthos 27. Mémoires du Muséum national d'Histoire naturelle 204:191-230, ISBN:978-2-85653-692-6
Abstract [+] [-]Recent French deep-sea expeditions in the Indo-West Pacific resulted in the collection of abundant material of the deep-sea lobster genus Puerulus Ortmann, 1897 (Palinuridae). Difficulties in identification necessitated a generic revision and as a result, five new species are described, all of which are similar to P. angulatus (Bate, 1888). Puerulus angulatus was thought to have a wide distribution from eastern Africa to Marquesas Islands, but is now restricted to the western Pacific, from Japan to Australia. Of the five new species, P. gibbosus n. sp. is found in eastern Africa, P. mesodontus n. sp. from Japan to Fiji, P. richeri n. sp. from the New Caledonia to Marquesas Islands, while P. sericus n. sp. and P. quadridentis n. sp. mainly occur around New Caledonia. Of the other three previously described species, the distribution of P. velutinus Holthuis, 1963, is extended to Fiji, while P. sewelli Ramadan, 1938, and P. carinatus Borradaile, 1910, are still only known from the northern and western parts of the Indian Ocean, respectively. COI gene sequence differences support the morphological species distinctions.
Accessible surveys cited (54) [+] [-]AURORA 2007, AZTEQUE, BATHUS 1, BATHUS 2, BATHUS 3, BATHUS 4, BENTHEDI, BERYX 11, BERYX 2, BIOCAL, BIOPAPUA, BOA0, BOA1, BORDAU 1, BORDAU 2, CHALCAL 1, CHALCAL 2, Restricted, EBISCO, EXBODI, HALIPRO 1, KARUBAR, LITHIST, MAINBAZA, Restricted, MIRIKY, MUSORSTOM 1, MUSORSTOM 10, MUSORSTOM 2, MUSORSTOM 3, MUSORSTOM 4, MUSORSTOM 5, MUSORSTOM 6, MUSORSTOM 7, MUSORSTOM 8, MUSORSTOM 9, NORFOLK 1, NORFOLK 2, PALEO-SURPRISE, PANGLAO 2005, SALOMON 1, SALOMON 2, SALOMONBOA 3, SANTO 2006, SMCB, SMIB 1, SMIB 2, SMIB 4, SMIB 8, TAIWAN 2001, TARASOC, TERRASSES, VAUBAN 1978-1979, VOLSMAR
Associated collection codes: IU (Crustaceans) -
Chang S.C., Chan T.Y. & Ahyong S.T. 2014. Two new species of the rare lobster genus Thaumastocheles Wood-Mason, 1874 (Reptantia: Nephropidae) discovered from recent deep-sea expeditions in the Indo-West Pacific. Journal of Crustacean Biology 34(1): 107-122. DOI:10.1163/1937240X-00002201
Abstract [+] [-]Specimens of species closely related to the rare deep-sea lobster Thaumastocheles japonicus Calman, 1913 were obtained from recent deep-sea expeditions in the West Pacific. Close examination of these specimens, as well as molecular analysis, showed that they represent two species new to science, with many morphological and significant genetic differences (barcoding gene COI sequence divergences 11.5- 14.8%) between each other as well as T. japonicus. Re-examination of the specimens previously assigned to T. japonicus revealed that true T. japonicus has a more northern distribution, from Japan to the South China Sea and the Philippines. The two new species have more southern distributions with T. bipristis n. sp. Restricted to the Philippines and Indonesia, and T. massonktenos n. sp. Being widely distributed in the Indo-West Pacific, from the South China Sea to Madagascar and New Caledonia. The genetic data also suggest that T. dochmiodon Chan and de Saint Laurent, 1999 may represent a polymorphic male form of T. japonicus.
Accessible surveys cited (11) [+] [-]BATHUS 1, BATHUS 2, BIOPAPUA, Restricted, HALIPRO 1, MUSORSTOM 2, MUSORSTOM 3, PANGLAO 2005, PAPUA NIUGINI, SALOMON 2, TAIWAN 2001
Associated collection codes: IU (Crustaceans) -
Chang S.C., Tshudy D., Sorhannus U., Ahyong S.T. & Chan T.Y. 2017. Evolution of the thaumastocheliform lobsters (Crustacea, Decapoda, Nephropidae). Zoologica Scripta 46(3): 372-387. DOI:10.1111/zsc.12205
Accessible surveys cited (6) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chang S.C. & Chan T.Y. 2018. Molecular evidence of sexual polymorphism in the rare deep-sea lobster genus Thaumastocheles Wood-Mason, 1874 (Crustacea: Decapoda: Nephropidae). Journal of Crustacean Biology 38(6): 772-779. DOI:10.1093/jcbiol/ruy073
Abstract [+] [-]The rare deep-sea lobsters of the genus Thaumastocheles Wood-Mason, 1874 are characterized by having conspicuously unequal first chelipeds, with the right cheliped greatly elongated and pectinate. The five species of Thaumastocheles are mainly separated by the shape of the teeth in the major chelae. Molecular analysis using four genetic markers (three mitochondrial: COI, 12S rDNA, 16S rDNA; one nuclear: ITS-1) on an extensive series of the species of Thaumastocheles from different localities reveals that there is sexual dimorphism and even male polymorphism in the major chelae in at least half of the species, with T. dochmiodon Chan & de Saint Laurent, 1999 being the male form in T. japonicus Calman, 1913. Thaumastocheles dochmiodon is therefore considered a junior synonym of T. japonicus. The other species confirmed as showing sexual dimorphism and male polymorphism is T. massonktenos Chang, Chan & Ahyong, 2014. A revised key is provided for the species of Thaumastocheles. Whether sexual dimorphism and male polymorphism are common phenomena in Thaumastocheles or even all thaumastocheliforms still awaits the collection and discovery of additional material of both sexes.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chang S.C. & Chan T.Y. 2019. On the clawed lobsters of the genus Nephropsis Wood-Mason, 1872 recently collected from deep-sea cruises off Taiwan and the South China Sea (Crustacea, Decapoda, Nephropidae). ZooKeys 833: 41-58. DOI:10.3897/zookeys.833.32837
Abstract [+] [-]Recent deep-sea cruises using Taiwanese research vessels off Taiwan and in the South China Sea yielded seven species of the clawed lobster genus Nephropsis Wood-Mason, 1872. Four species are new records for Taiwan (Nephropsis acanthura Macpherson, 1990, N. holthuisi Macpherson, 1993, N. serrata Macpherson, 1993, and N. suhmi Bate, 1888) and three species are new records of Dongsha (under the jurisdiction of Taiwan) in the South China Sea (N. ensirostris Alcock, 1901, N. stewarti Wood-Mason, 1872, and N. suhmi). Altogether, five and four species of this genus are now known from Taiwan and Dongsha, respectively. The diagnostic characters and coloration are illustrated for most, if not all, of these species.
Accessible surveys cited (7) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chang S.C., Chan T.Y. & Kumar A.B. 2020. Deep-sea clawed lobster Nephropsis stewarti Wood-Mason, 1872 species complex in the Indo-West Pacific (Crustacea, Decapoda, Nephropidae), with description of a new species. ZooKeys 1008: 37-60. DOI:10.3897/zookeys.1008.59966
Abstract [+] [-]Nephropsis stewarti Wood-Mason, 1872 is the most common species of the deep-sea clawed lobster genus Nephropsis Wood-Mason, 1872 in the Indo-West Pacific. Morphological comparisons and genetic analyses of extensive material referred to this lobster revealed the presence of three species. The three species differ mainly in body size, development of the intermediate carina on the carapace, position of the lateral pair of rostral teeth, whether the pleonal tergum is granulate, and the spination on the large chelipeds. Nephropsis stewarti is restricted to the western central Indian Ocean, and a neotype is selected to fix its identity. The name Nephropsis grandis Zarenkov, 2006 is revived with neotype selection for the large form found in the West Pacific and northwestern Australia. The smaller form from southern Taiwan and the Philippines is described as Nephropsis pygmaea sp. nov.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chen C.L., Goy J.W., Bracken-grissom H.D., Felder D.L., Tsang L.M. & Chan T.Y. 2016. Phylogeny of Stenopodidea (Crustacea : Decapoda) shrimps inferred from nuclear and mitochondrial genes reveals non-monophyly of the families Spongicolidae and Stenopididae and most of their composite genera. Invertebrate Systematics 30(5): 479-490. DOI:10.1071/IS16024
Abstract [+] [-]The infraorder Stenopodidea is a relatively small group of marine decapod crustaceans including the well known cleaner shrimps, but their higher taxonomy has been rather controversial. This study provides the most comprehensive molecular phylogenetic analyses of Stenopodidea using sequence data from two mitochondrial (16S and 12S rRNA) and two nuclear (histone H3 and sodium–potassium ATPase a-subunit (NaK)) genes. We included all 12 nominal genera from the three stenopodidean families in order to test the proposed evolutionary hypothesis and taxonomic scheme of the group. The inferred phylogeny did not support the familial ranking of Macromaxillocarididae and rejected the reciprocal monophyly of Spongicolidae and Stenopididae. The genera Stenopus, Richardina, Spongiocaris, Odontozona, Spongicola and Spongicoloides are showed to be poly- or paraphyletic, with monophyly of only the latter three genera strongly rejected in the analysis. The present results only strongly support the monophyly of Microprosthema and suggest that Paraspongiola should be synonymised with Spongicola. The three remaining genera, Engystenopus, Juxtastenopus and Globospongicola, may need to be expanded to include species from other genera if their statuses are maintained. All findings suggest that the morphological characters currently adopted to define genera are mostly invalid and substantial taxonomic revisions are required. As the intergeneric relationships were largely unresolved in the present attempt, the hypothesis of evolution of deep-sea sponge-associated taxa from shallow-water free-living species could not be verified here. The present molecular phylogeny, nevertheless, provides some support that stenopoididean shrimps colonised the deep sea in multiple circumstances.
Accessible surveys cited (14) [+] [-]BIOPAPUA, BORDAU 2, EBISCO, GUYANE 2014, KARUBENTHOS 2, KARUBENTHOS 2012, MUSORSTOM 9, NORFOLK 2, PAKAIHI I TE MOANA, PALEO-SURPRISE, PAPUA NIUGINI, SALOMON 2, SANTO 2006, Restricted
Associated collection codes: IU (Crustaceans) -
Chow L.H., De grave S., Anker A., Poon K.K.Y., Ma K.Y., Chu K.H., Chan T. & Tsang L.M. 2021. Distinct suites of pre‐ and post‐adaptations indicate independent evolutionary pathways of snapping claws in the shrimp family Alpheidae (Decapoda: Caridea). Evolution 75(11): 2898-2910. DOI:10.1111/evo.14351
Accessible surveys cited (4) [+] [-]
Associated collection codes: IU (Crustaceans) -
Chuang S.C., Chan T. & Komai T. 2003. The rare deep-sea shrimp Bitias brevis (Rathbun, 1906) (Crustacea: Decapoda: Pandalidae) from the western Pacific. Proceedings of the Biological Society of Washington 116(3): 839-845
Abstract [+] [-]During recent deep-sea expeditions in Taiwan, Japan and New Caledonia seven specimens were collected of the rare pandalid shrimp Bitias brevis (Rathbun, 1906), a species previously known from only two specimens. The study of this new material showed that characters used in separating B. brevis from its sole congeneric species, B. stocki Fransen, 1990, are variable. This study provides additional information on this rare shrimp, including coloration.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Gan Z.B., Li X.Z., Chan T.Y., Chu K.H. & Kou Q. 2015. Phylogeny of Indo-West Pacific pontoniine shrimps (Crustacea: Decapoda: Caridea) based on multilocus analysis. Journal of Zoological Systematics and Evolutionary Research 53(4): 282-290. DOI:10.1111/jzs.12108
Abstract [+] [-]The phylogenetic relationships and evolutionary processes within the subfamily Pontoniinae, a speciose group of shrimps with diverse lifestyles (free living, semi-symbiotic and symbiotic) inhabiting the coral reefs of tropical oceans, are an interesting and undeveloped subject of study. In this work, two mitochondrial ribosomal genes (12S rRNA and 16S rRNA) and two protein-coding nuclear genes (Histone 3 and the sodium–potassium ATPase a-subunit) were employed to reconstruct the phylogenetic relationships of 42 genera and 101 species within Pontoniinae. Compared to previous studies, ten additional genera were shown to be monophyletic groups, and the genera Dactylonia and Periclimenaeus were shown to be paraphyletic. The shallow-water crinoid-associated pontoniines were divided into several groups which were mostly consistent with the morphological analysis. The studied bivalve-associated taxa exhibited ancestries that were traceable to different lineages, and two groups could be distinguished: Anchiopontonia + Conchodytes and Anchistus. The similar situation occurred in other echinoderm-associated pontoniines. These results suggest that pontoniines sharing the same hosts may have different evolutionary origins resulting from multiple intrusions of their hosts by morphologically plastic ancestral groups.
Accessible surveys cited (4) [+] [-]
Associated collection codes: IU (Crustaceans) -
Han Q., Li X., Chan T.Y. & Others 2007. On the Crangonidae (Crustacea: Decapoda: Caridea) of the Philippines from the PANGLAO 2004 and PANGLAO 2005 expeditions. Raffles Bulletin of Zoology, Supplement 16: 7–14
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Hanafi-portier M., Samadi S., Corbari L., Chan T.Y., Chen W.J., Chen J.N., Lee M.Y., Mah C., Saucède T., Borremans C. & Olu K. 2021. When Imagery and Physical Sampling Work Together: Toward an Integrative Methodology of Deep-Sea Image-Based Megafauna Identification. Frontiers in Marine Science 8: 749078. DOI:10.3389/fmars.2021.749078
Abstract [+] [-]Imagery has become a key tool for assessing deep-sea megafaunal biodiversity, historically based on physical sampling using fishing gears. Image datasets provide quantitative and repeatable estimates, small-scale spatial patterns and habitat descriptions. However, taxon identification from images is challenging and often relies on morphotypes without considering a taxonomic framework. Taxon identification is particularly challenging in regions where the fauna is poorly known and/or highly diverse. Furthermore, the efficiency of imagery and physical sampling may vary among habitat types. Here, we compared biodiversity metrics (alpha and gamma diversity, composition) based on physical sampling (dredging and trawling) and towed-camera still images (1) along the upper continental slope of Papua New Guinea (sedimented slope with wood-falls, a canyon and cold seeps), and (2) on the outer slopes of the volcanic islands of Mayotte, dominated by hard bottoms. The comparison was done on selected taxa (Pisces, Crustacea, Echinoidea, and Asteroidea), which are good candidates for identification from images. Taxonomic identification ranks obtained for the images varied among these taxa (e.g., family/order for fishes, genus for echinoderms). At these ranks, imagery provided a higher taxonomic richness for hard-bottom and complex habitats, partially explained by the poor performance of trawling on these rough substrates. For the same reason, the gamma diversity of Pisces and Crustacea was also higher from images, but no difference was observed for echinoderms. On soft bottoms, physical sampling provided higher alpha and gamma diversity for fishes and crustaceans, but these differences tended to decrease for crustaceans identified to the species/morphospecies level from images. Physical sampling and imagery were selective against some taxa (e.g., according to size or behavior), therefore providing different facets of biodiversity. In addition, specimens collected at a larger scale facilitated megafauna identification from images. Based on this complementary approach, we propose a robust methodology for image-based faunal identification relying on a taxonomic framework, from collaborative work with taxonomists. An original outcome of this collaborative work is the creation of identification keys dedicated specifically to in situ images and which take into account the state of the taxonomic knowledge for the explored sites.
Accessible surveys cited (9) [+] [-]
Associated collection codes: IC (Ichthyology), IE (Echinoderms), IK (Cnidaires), IM (Molluscs), IP (Porifera), IU (Crustaceans) -
Ho P.H., Ng P.K., Chan T. & Lee D.A. 2004. New records of 31 species of brachyuran crabs from the joint Taiwan-France expeditions," Taiwan 2000" and" Taiwan 2001", off deep waters in Taiwan. Crustaceana 77(6): 641-688
Abstract [+] [-]In recent collections from deep waters around Taiwan, numerous new records of brachyuran crabs were obtained for Taiwan. Thirty-one species are added to the known Taiwanese brachyuran fauna, including 13 new records of genera and two new records of families (Homolodromiidae and Cymonomidae). The established brachyuran crab fauna for Taiwan now stands at 604 species.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Kim H.K., Chan B.K., Corbari L., Moreno P.A.R., Achituv Y. & Kim W. 2019. A new species of the coral associated barnacle (Thoracica: Pyrgomatidae: Pyrgoma) from a deep-sea oculinid coral in New Caledonian waters. Zootaxa 4695(1): 26-44. DOI:10.11646/zootaxa.4695.1.2
Abstract [+] [-]The present study describes a new species of Pyrgoma Leach, 1817, a coral associated barnacle attached to Tubastrea, from the south of New Caledonia. Pyrgoma spurtruncata sp. nov. is morphologically close to P. cancellatum Leach, 1818, P. japonica Weltner, 1897 and P. kuri Hoek, 1913 in the absence of extended tergal muscle crests. Pyrgoma cancellatum and P. kuri have a shallow, fully open, medial furrow of the tergal spur, whereas in P. spurtruncata sp. nov. the medial furrow is deeper and closed. Pyrgoma spurtruncata sp. nov. differs from P. japonica Weltner, 1897 in the width of the tergal spur and the length of the rostral tooth of the scutum. Phylogenetic analyses based on two mitochondrial markers, 12S rDNA and COI, confirm a unique, distinct clade of P. spurtruncata sp. nov. among the current available molecular information regarding Pyrgoma species.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Kim J.N. & Chan T. 2005. A revision of the genus Prionocrangon (Crustacea: Decapoda: Caridea: Crangonidae). Journal of Natural History 39(19): 1597-1625. DOI:10.1080/00222930400016788
Abstract [+] [-]Additional specimens belonging to the rare crangonid genus Prionocrangon Wood-Mason and Alcock, 1891 collected from recent deep-sea expeditions in the West Pacific enable a revision of this poorly known genus. The four previously described species are all valid. The type species P. ommatosteres Wood-Mason and Alcock, 1891, originally known only from the Andaman Sea, is considered to be also distributed in the Philippines and Indonesia. However, the material previously assigned to "P. ommatosteres'' by de Man ( 1920) and Chace ( 1984) from Indonesia and the Philippines actually represents a new species, P. demani sp. nov., close to P. pectinata Faxon, 1896. Prionocrangon pectinata and P. curvicaulis Yaldwyn, 1960 are still only known by their types. The distribution of P. dofleini Balss, 1913 is now extended from Japan to Taiwan. Two more new species are recognized. Prionocrangon formosa sp. nov. from Taiwan is closely related to P. curvicaulis while P. paucispina sp. nov. from Taiwan and New Caledonia is unique in having very few dorsal carapace spines. The genus Prionocrangon is newly diagnosed and a key to the species is provided. Nevertheless, a damaged specimen from the Sulu Sea could not be satisfactorily assigned to any of the above seven species, suggesting that this genus may have even higher diversity.
Accessible surveys cited (7) [+] [-]
Associated collection codes: IU (Crustaceans) -
Kim J.N. & Chan T. 2020. Crangonid shrimps (Crustacea: Decapoda: Caridea) from Papua New Guinea, Deep-Sea Crustaceans from Papua New Guinea - Tropical Deep-Sea Benthos 31. Mémoires du Muséum national d'histoire naturelle Tome 213. Publications scientifiques du Muséum national d'histoire naturelle, Paris:207-238, ISBN:978-2-85653-913-2
Abstract [+] [-]Twenty-seven species of crangonid shrimps are reported from material collected in Papua New Guinea by the recent MNHN expeditions BIOPAPUA (2010), PAPUA NIUGINI (2012), MADEEP (2014), and KAVIENG (2014). All except Metacrangon punctata are first records for Papua New Guinea, including four new species, Metacrangon novaguinea n. sp., M. hayashii n. sp., Parapontophilus grandis n. sp., and Philocheras simulans n. sp.
Accessible surveys cited (4) [+] [-]
Associated collection codes: IU (Crustaceans) -
Kim S.J., Kang H.M., Corbari L. & Chan B.K.K. 2018. First report on the complete mitochondrial genome of the deep-water scalpellid barnacle Arcoscalpellum epeeum (Cirripedia, Thoracica, Scalpellidae). Mitochondrial DNA Part B 3(2): 1288-1289. DOI:10.1080/23802359.2018.1532844
Abstract [+] [-]Scalpellids are one of the largest families of Scalpelliformes and reproduce either androdioeciously or dioeciously. Here, we characterized the first mitogenome of a scalpellid barnacle (Arcoscalpellum epeeum), which was 15,593 bp in length with a 71.5% AT content. In comparison with the pollicipedids Capitulum mitella and Pollicipes polymerus, the tRNA genes of A. epeeum were rearranged between ND3 and ND5, between CYTB and ND1, and between 12S rRNA and ND2. On the mitogenomic tree, the Scalpelliformes families Pollicipedidae and Scalpellidae were not monophyletic, which concurs with previous studies.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Koch M., Ďuriš Z., Huang J. & Chan T. 2014. First report of the swimming crab Ovalipes iridescens (Miers, 1886) (Brachyura, Portunidae) from Taiwan. Crustaceana 87(14): 1640-1647. DOI:10.1163/15685403-00003386
Abstract [+] [-]The portunid crab Ovalipes iridescens (Miers, 1886) is reported for the first time from the marine waters of Taiwan, and is just the second Ovalipes species known from this region. The only previously known Ovalipes species from Taiwan is a commercially-used species, Ovalipes punctatus (De Haan, 1833). The present study provides morphological and distributional data, and discusses the variability of the external morphology. The colour pattern of the body and the shape of the male gonopods of the newly recorded O. iridescens are illustrated.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Komai T. & Chan T.Y. 2003. A new genus and species of pandalid shrimp (Decapoda: Caridea) from the western Pacific. Journal of Crustacean Biology 23(4): 880–889
Abstract [+] [-]A new genus and new species of pandalid shrimp, Calipandahis elachys, is described on the basis of the specimens from Taiwan, Solomon Islands, and New Caledonia in the western Pacific Ocean. Calipandatus new genus resembles Bitias Fransen, 1990, in the lack of an exopod on the third maxilliped, the short rostrum, and the presence of arthrobranchs on the four anterior pereopods. It is distinguished from Bitias by the presence of tegumental scales, the moderately spaced, fixed dorsal teeth on the rostrum proper, the short antennular stylocerite, and the peculiar structures of the mandibular palp and the chela of the second pereopod. The new species also bears similarity to particular species of Plesionika Bate, 1888, although the absence of an exopod on the third maxilliped sets the new species apart from Plesionika.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Komai T. & Chan T.Y. 2007. A new species of the crangonid shrimp genus Philocheras (Crustacea: Decapoda: Caridea) from the Philippines. Proceedings of the Biological Society of Washington 120(2): 159–166
Abstract [+] [-]A new species of crangonid shrimp, Philocheras magnioculus, is described on the basis of a single female specimen from off the island of Panglao, southwest of Bohol, the Philippines. The presence of a sharp lateral tooth on the antennal scale links the new species to eight previously described species, but the structure of the rostrum, very large cornea, and poorly sculptured pleon immediately distinguish it from its relatives. The new species is the third Philocheras known from the Philippines.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Komai T. & Chan T.Y. 2008. Further records of deep-sea shrimps of the genus Glyphocrangon A. Milne-Edwards, 1881 (Crustacea: Decapoda: Caridea) from the Philippines, with descriptions of three new species. Raffles Bulletin of Zoology, Supplement 19: 39–62
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Komai T. & Chan T. 2010. Two new pandalid shrimps and the discovery of the second specimen of the rare hippolytid shrimp Leontocaris bulga Taylor & Poore, 1998 (Crustacea, Decapoda) from the Mozambique MAINBAZA Cruise. Zoosystema 32(4): 625-641. DOI:10.5252/z2010n4a6
Abstract [+] [-]Two new species of the caridean shrimp family Pandalidae were discovered from the recent deep-sea MAINBAZA cruise in the Mozambique Channel. Pandalina spinicauda n. sp. is unique in the genus by having much more numerous dorsolateral spines on the telson. Plesionika neon n. sp. belongs to the "Plesionika rostricrescentis (Bate, 1888)" group that bears distinct basal rostral crest and with elaborate colour patterns, but has the shortest stylocerite and a very different coloration. The rare hippolytid shrimp Leontocaris bulga Taylor & Poore, 1998 was also collected by the MAINBAZA cruise. Leontocaris bulga has only been known before from a damaged specimen lacking abdomen and collected off Tasmania, and therefore, the Mozambique specimen is described and illustrated in detail.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Komai T., Lin C.W. & Chan T.Y. 2012. Bathypelagic Shrimp of the Genus Pasiphaea (Decapoda: Caridea: Pasiphaeidae) from Waters Around Taiwan, with Descriptions of Four New Species. Journal of Crustacean Biology 32(2): 295-325. DOI:10.1163/193724011X615550
Abstract [+] [-]The bathypelagic shrimp genus Pasiphaea Savigny, 1816 (Caridea: Pasiphaeidae) has been previously known from Taiwan from only three species. However, recent deep-sea surveys around the island have collected numerous specimens comprising ten species, of which four are new to science: P. aeons n. sp., P alcocki (Wood-Mason and Alcock, 1891), P exilimanus n. sp., P. falx n. sp., P japonica Omori, 1976, P. mclaughlinae Hayashi, 2006, P levicarinata Hanamura, 1994, P orientalis Schmitt, 1931, P. sirenkoi Burukovsky, 1987 and P. taiwanica n. sp. The four new species are fully described and illustrated, and compared with allied congeners. Pasiphaea orientalis is redescribed, as this species is endemic to Taiwan and its original description is inadequate. Amongst the three new records of Taiwan, P. levicarinata is also recorded for the first time from the northwestern Pacific.
Accessible surveys cited (4) [+] [-]
Associated collection codes: IU (Crustaceans) -
Komai T. & Chan T. 2013. New records of Glyphocrangon A. Milne-Edwards, 1881 (Crustacea, Decapoda, Caridea, Glyphocrangonidae) from recent French expeditions off the Mozambique Channel and Papua New Guinea, with description of one new species, in Ahyong S.T., Chan T.Y., Corbari L. & Ng P.K.(Eds), Tropical Deep-Sea Benthos 27. Mémoires du Muséum national d'Histoire naturelle 204:107-128, ISBN:978-2-85653-692-6
Abstract [+] [-]Collections made during recent French expeditions off the Mozambique Channel in the western Indian Ocean (MAINBAZA, MIRIKY) and off Papua New Guinea in the southwestern Pacific (BIOPAPUA) yielded a total of 14 species of the deep-water shrimp genus Glyphocrangon A. Milne-Edwards, 1881, including one new to science: G. amblytes Komai, 2004, G. assimilis De Man, 1918, G. brevis Komai, 2006, G. confusa Komai, 2004, G. crosnieri Komai, 2004, G. dentata Barnard, 1926, G. faxoni De Man, 1918, G. indonesiensis Komai, 2004, G. lowryi Kensley, Tranter & Griffin, 1987, G. proxima Komai, 2004, G. pugnax De Man, 1918, G. pulchra n. sp., G. rudis Komai, 2006, and G. speciosa Komai, 2004. Glyphocrangon pulchra n. sp. belongs to the “G. regalis Bate, 1888” species-complex, and differentiating characters between the new species and closely related allies are discussed. The geographical range of G. indonesiensis is greatly extended from the southwestern Pacific to the western Indian Ocean, the identification being supported by both morphological and molecular data. Slight range extensions are also reported for G. lowryi and G. speciosa.
Accessible surveys cited (4) [+] [-]
Associated collection codes: IU (Crustaceans) -
Komai T. & Chan T.Y. 2016. “Symmetrical” hermit crabs of the family Pylochelidae (Crustacea: Decapoda: Anomura) collected by the “BIOPAPUA” and “PAPUA NIUGINI” expeditions in the Papua New Guinea, with descriptions of two new species. Zootaxa 4088(3): 301-328. DOI:10.11646/zootaxa.4088.3.1
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Komai T., Yang C.H. & Chan T.Y. 2020. Deep-sea shrimps of the genus Glyphocrangon A. Milne-Edwards, 1881 (Decapoda: Caridea: Glyphocrangonidae) collected by the SJADES 2018 expedition off Java, Indonesia, with description of one new species. Raffles Bulletin of Zoology 68: 636653. DOI:10.26107/RBZ-2020-0079
Abstract [+] [-]A collection of the caridean shrimp genus Glyphocrangon A. Milne-Edwards, 1881 (Glyphocrangonidae), made during the South Java Deep-Sea Biodiversity Expedition 2018 (SJADES 2018), is comprised of six species, including one new to science: G. hakuhoae Takeda & Hanamura, 1994, G. indonesiensis Komai, 2004b, G. juxtaculeata Chace, 1984, G. proxima Komai, 2004b, G. serratirostris, new species, and G. sibogae de Man, 1918. Glyphocrangon juxtaculeata, which was originally described on the basis of a single juvenile holotype and previously placed in the synonymy of G. regalis Spence Bate, 1888, is herein reinstated as a valid species on the basis of examination of a newly collected female specimen. Glyphocrangon serratirostris, new species, belongs to the “G. regalis” species complex, but is quite distinctive in having four or more lateral spines on each side of the rostrum. Genetic analyses using partial segments of the mitochondrial COI gene also supports the recognition of the new species.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Kou Q., Li X., Chan T.Y., Chu ka hou & Gan Z. 2013. Molecular phylogeny of the superfamily Palaemonoidea (Crustacea : Decapoda : Caridea) based on mitochondrial and nuclear DNA reveals discrepancies with the current classification. Invertebrate Systematics 27(5): 502-514. DOI:10.1071/IS13005
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Kou Q., Li X., Chan T.Y., Chu K.H., Huang H. & Gan Z. 2013. Phylogenetic relationships among genera of the Periclimenes complex (Crustacea: Decapoda: Pontoniinae) based on mitochondrial and nuclear DNA. Molecular Phylogenetics and Evolution 68(1): 14-22. DOI:10.1016/j.ympev.2013.03.010
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Kou Q., Li X.Z., Chan T.Y. & Chu K.H. 2015. Divergent evolutionary pathways and host shifts among the commensal pontoniine shrimps: a preliminary analysis based on selected Indo-Pacific species. Organisms Diversity & Evolution 15(2): 369-377. DOI:10.1007/s13127-014-0198-y
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Lemaitre R. 2013. The genus Paragiopagurus Lemaitre, 1996 (Crustacea, Decapoda, Anomura, Paguroidea, Parapaguridae): A worldwide review and summary, with descriptions of five new species, in Ahyong S.T., Chan T.Y., Corbari L. & Ng P.K.(Eds), Tropical Deep-Sea Benthos 27. Mémoires du Muséum national d'Histoire naturelle 204:311-421, ISBN:978-2-85653-692-6
Abstract [+] [-]A review of the deep-water hermit crab species of the genus Paragiopagurus Lemaitre, 1996 from the world oceans is presented. The core specimen base for this study has come primarily from the abundant collections of species of this genus obtained during French campaigns over the last four decades, and complemented with numerous specimens from many other deep-sea expeditions and deposited in various museum holdings around the world. Paragiopagurus is one of the most speciose genus among the Parapaguridae Smith, 1882, although it is considered a phylogenetically heterogeneous assemblage and does not appear to have an apomorphy of its own. Bathymetrically, the species range in depth from 36 to 2034 m, although they occur most frequently between 200 and 1000 m. The species utilize as housing, gastropod shells (or rarely scaphopod shells, siliceous sponges, or hollow pieces of wood) that may or may not be colonized by actinians or zoanthids. In this review, 24 species are recognized, of which five are new, P. laperousei n. sp., P. orthotenes n. sp., P. oxychelos n. sp., P. trilineatus n. sp., and P. umbonatus n. sp. The new species are fully described and illustrated. All previously known species of the genus are diagnosed or redescribed, and previously published illustrations of important taxonomic characters assembled and complemented, when useful, with new illustrations. The treatment of each species includes a full synonymy, materials examined (type and non-types), colouration, habitat or type of housing used, distribution, and remarks on taxonomy and morphological affinities. Colour photographs are included for 14 of the species. Parapagurus curvispina de Saint Laurent, 1974, a species tentatively moved after its description to Sympagurus Smith, 1883 and then to Paragiopagurus, is herein transferred with certainty to Oncopagurus Lemaitre, 1996. Parapagurus spinimanus Balss, 1911, a species that had been incorrectly placed in Paragiopagurus, is herein moved to Sympagurus. Parapagurus sculptochela Zarenkov, 1990, a taxon previously considered a junior synonym of Paragiopagurus boletifer (de Saint Laurent, 1972), is herein resurrected as a valid species of Paragiopagurus. The bathymetric and geographic distributions of Paragiopagurus species are summarized and briefly discussed, including a summary table, graph, and map with generalized distribution patterns.
Accessible surveys cited (52) [+] [-]BATHUS 1, BATHUS 2, BATHUS 3, BATHUS 4, BENTHAUS, BENTHEDI, BERYX 11, BIOCAL, BIOGEOCAL, BOA0, BOA1, BORDAU 1, BORDAU 2, CHALCAL 1, CHALCAL 2, CORAIL 2, CORINDON 2, EBISCO, HALICAL 1, HALIPRO 1, HALIPRO 2, KARUBAR, LITHIST, MUSORSTOM 1, MUSORSTOM 10, MUSORSTOM 2, MUSORSTOM 4, MUSORSTOM 5, MUSORSTOM 6, MUSORSTOM 7, MUSORSTOM 8, MUSORSTOM 9, NORFOLK 1, NORFOLK 2, SALOMON 1, SALOMON 2, SANTO 2006, SMCB, SMIB 10, SMIB 2, SMIB 3, SMIB 4, SMIB 5, SMIB 6, SMIB 8, TAIWAN 2000, TAIWAN 2001, TAIWAN 2002, TAIWAN 2003, TAIWAN 2004, VAUBAN 1978-1979, VOLSMAR
Associated collection codes: IU (Crustaceans) -
Li X., Chan T.Y. & Ng P.K. 2007. Heterocarpus gibbosus Bate, 1888 (Crustacea, Decapoda, PANDALIDAE): proposed replacement of the holotype by a neotype. Bulletin of Zoological Nomenclature 64(3): 155-159
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Li X., Masako M. & Chan T. 2008. Deep-sea Pontoniines (Decapoda: Palaemonidae) from the Philippine “Panglao 2005” Expedition, with Descriptions of Four New Species. Journal of Crustacean Biology 28(2): 385-411. DOI:10.1651/0278-0372(2008)028[0385:DPDPFT]2.0.CO;2
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Li X. & Chan T. 2013. Pandalid shrimps (Crustacea, Decapoda, Caridea) collected from the Philippines PANGLAO 2005 deep-sea expedition, in Ahyong S.T., Chan T.Y., Corbari L. & Ng P.K.(Eds), Tropical Deep-Sea Benthos 27. Mémoires du Muséum national d'Histoire naturelle 204:129-154, ISBN:978-2-85653-692-6
Abstract [+] [-]The caridean shrimp family Pandalidae Haworth, 1825, collected during the Philippine PANGLAO 2005 deep-sea expedition is represented by four genera and 30 species. Amongst them, Plesionika erythrocyclus Chan & Crosnier, 1997, P. exigua (Rathbun, 1906), P. rufomaculata Chan, 2004, P. suffusa Chan, 2004, and P. williamsi Forest, 1964, are new records for the Philippines. Plesionika acinacifer Chace, 1985, is shown to be the juvenile form of P. alcocki (Anderson, 1896) and the two taxa are synonymised. Colour photographs are provided for all but one species.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Liao Y., De grave S., Ho T.W., Ip B.H., Tsang L.M., Chan T.Y. & Chu K.H. 2017. Molecular phylogeny of Pasiphaeidae (Crustacea, Decapoda, Caridea) reveals systematic incongruence of the current classification. Molecular Phylogenetics and Evolution 115: 171-180. DOI:10.1016/j.ympev.2017.07.021
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Liao Y., Ma K.Y., De grave S., Komai T., Chan T.Y. & Chu K.H. 2019. Systematic analysis of the caridean shrimp superfamily Pandaloidea (Crustacea: Decapoda) based on molecular and morphological evidence. Molecular Phylogenetics and Evolution 134: 200-210. DOI:10.1016/j.ympev.2019.02.006
Abstract [+] [-]One of the systematically controversial superfamilies in Caridea is the predominately deep-sea or cold water Pandaloidea, largely because this species-rich group of nearly 200 species in 25 genera exhibits a very high diversity of body forms and ecology. Although the relationships amongst the taxa within Pandaloidea have been repeatedly discussed based on morphology, no comprehensive molecular phylogeny exists. In this study, we present the first molecular phylogeny of the group, based on a combined dataset of two mitochondrial (12S and 16S rRNA) and six nuclear (ATP synthase β-subunit, enolase, glyceraldehyde-3-phosphate dehydrogenase, histone 3, phosphoenolpyruvate carboxykinase and sodium–potassium ATPase α-subunit) markers, based on 62 species (about 1/3 of known biodiversity) in 22 genera (88% of genera) of two pandaloid families (Pandalidae, Thalassocarididae) and outgroups from seven other caridean families. With generally high support, the relationships within the clade are fully resolved. Pandalidae is shown to be paraphyletic with Thalassocarididae deeply nested within as a monophyletic group, and the latter is herein considered to be a synonym of Pandalidae. Five major clades are recovered, with the shallow water genera Anachlorocurtis, Chlorocurtis, Chlorotocella and Miropandalus forming a sister clade to the remaining genera. At the genus level, the phylogeny indicates Plesionika, Heterocarpus and Pandalus to be not monophyletic. The validity of Pandalopsis, Stylopandalus and Calipandalus is challenged and these genera are considered herein to be junior synonyms of Pandalus (Pandalopsis) and Plesionika (Stylopandalus and Calipandalus). Although not fully resolved, some evidence potentially considers Nothocaris to be a valid genus. Ancestral State Reconstruction successfully recovered 15 synapomorphies for the major clades, with 11 of them reported to be of systematic significance for the first time.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Lin C.W. & Chan T.Y. 2001. First record of the deep-sea shrimp genus Ephyrina Smith, 1885 (Decapoda, Oplophoridae) from Taiwan, with the description of a new subspecies. Crustaceana 74(2): 183–192
Abstract [+] [-]The deep-sea genus Ephyrina Smith, 1885, is reported for the first time from Taiwan. The specimens obtained all belong to one species. The Taiwanese material closely resembles E. figueirai Crosnier & Forest, 1973, in having double rows of lateral spines on each side of the telson, but consistently differs from the nominotypical form from the Atlantic in having a longer and more spinose telson,while also the dorsal depression on abdominal somite VI is slightlymore pronounced. Comparison of additional specimens from the Philippines and from Madagascar shows that the West Pacific specimens are nearly identical, but the Madagascan material seems to have characters intermediate between theWest Pacific and Atlantic forms. We decided to propose a subspecific status to the West Pacific population, in order to emphasize the slight but constant differences observed in the telson in this obviously allopatric form of the species.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Lin C.W., Chan T. & Chu K.H. 2004. A New Squat Lobster of the Genus Raymunida (Decapoda: Galatheidae) from Taiwan. JOURNAL OF CRUSTACEAN BIOLOGY 24(1): 149-156
Abstract [+] [-]The galatheid genus Raymunida Macpherson and Machordom, 2000, is reported for the first time from Taiwan, and the species collected is also new to science. The new species is most closely related to R. confundens Macpherson and Machordom, 2001, but differs in having a more robust cheliped and walking legs covered with distinct squammae. ne coloration of the new species is probably unique in the germs by both the carapace and abdomen being uniform in color. Analysis of the mitochondrial cytochrome oxidase I gene sequences also supports the specific status of this Taiwanese form.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Lin F.J., Komai T. & Chan T.Y. 2007. A new species of callianassid shrimp (Crustacea: Decapoda: Thalassinidea) from deep-water hydrothermal vents off Taiwan. Proceedings of the Biological Society of Washington 120(2): 143-158. DOI:10.2988/0006-324X(2007)120[143:ANSOCS]2.0.CO;2
Abstract [+] [-]Nihonotrypaea thermophila, new species, is described on the basis of 26 specimens from a hydrothermally influenced field off northeastern Taiwan at depths of 128–320 m. This is the first callianassid shrimp to be reported from deep-water hydrothermal vents, and available data seems to suggest that the new species is vent-endemic. The new species is assigned to Nihonotrypaea Manning & Tamaki, 1998, a genus including three previously described species inhabiting coastal mud or sand flat areas in Japan and its adjacent waters. The new species is unique in the genus in having the antennal peduncle distinctly longer than the antennular peduncle.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Lin H.C., Høeg J.T., Yusa Y. & Chan B.K. 2015. The origins and evolution of dwarf males and habitat use in thoracican barnacles. Molecular Phylogenetics and Evolution 91: 1-11. DOI:10.1016/j.ympev.2015.04.026
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Lin H.C., Cheang C.C., Corbari L. & Chan B.K.K. 2020. Trans-Pacific genetic differentiation in the deep-water stalked barnacle Scalpellum stearnsii (Cirripedia: Thoracica: Scalpellidae). Deep Sea Research Part I: Oceanographic Research Papers 164: 103359. DOI:10.1016/j.dsr.2020.103359
Abstract [+] [-]Recent advancements in deep-sea expeditions have made possible to sample adequate quantities of deep-sea organisms over wide geographical ranges for population genetic studies. Scalpellum stearnsii is a common stalked barnacle that occurs in the mesobenthic environment (>200 m depth) throughout the West Pacific Ocean and covers several major deep-sea basins. The present study examined the diversity and genetic differentiation of S. stearnsii populations from the East China Sea, West Philippine Basin, Sulu Sea, and Caroline Trenches. Mo lecular analyses based on partial sequences of the mitochondrial gene COI and nuclear gene H3 revealed four distinct clades of S. stearnsii—SS, CF1, CF2, and CF3—with distinct species-level pairwise divergences among the clades. SS (representing S. stearnsii, based on morphological comparison with holotype) is mainly present in the East China Sea and the Philippine Basin, CF1 is present in the East China Sea, CF2 is present in the Sulu Sea, and CF3 is exclusively present in the Caroline Trench (Southwest Pacific Ocean). Deep genetic differentiation be tween the northern (SS and CF1) and southern clades (CF2 and CF3) was estimated to have occurred around 33 million years ago, and the eastward-flowing Equatorial Undercurrent (100–200 m) and oxygen minimum zone (300–400 m) are the putative barriers to gene flow. The timing is concordant with reported diversification events in both shallow- and deep-water organisms during the Oligocene and Miocene periods. This cross-ocean, -taxon, and -habitat divergence time suggests speciation driven by global-scale events. Recent size expansion likely occurred in all the four clades and subsequent populations, predating the Last Glacial Maximum (LGM). The persistence of mesobenthic deep-sea barnacles through the temperature fluctuation at the LGM can be a common pattern.
Accessible surveys cited (15) [+] [-]BATHUS 2, BIOCAL, BIOPAPUA, BOA1, EBISCO, MUSORSTOM 10, MUSORSTOM 4, MUSORSTOM 5, MUSORSTOM 6, NORFOLK 1, NORFOLK 2, SALOMON 1, SMIB 2, SMIB 4, SMIB 8
Associated collection codes: IU (Crustaceans) -
Ma K.Y., Chan T.Y. & Chu K.H. 2009. Phylogeny of penaeoid shrimps (Decapoda: Penaeoidea) inferred from nuclear protein-coding genes. Molecular Phylogenetics and Evolution 53(1): 45-55. DOI:10.1016/j.ympev.2009.05.019
Abstract [+] [-]Penaeoidea is a diverse group of economically important marine shrimps. Attention to the evolutionary history of the penaeoids has been raised since studies using mitochondrial DNA markers and sperm ultrastructure contradict classification of the penaeoid families based on morphology and hence challenge the long standing taxonomy of this superfamily. In this study, DNA sequences of two nuclear protein-coding genes, phosphoenolpyruvate carboxykinase and sodium-potassium ATPase alpha-subunit, were determined from 37 penaeoid genera to reconstruct the evolutionary relationships and to estimate divergence ages of the penaeoid shrimps. Phylogenetic analyses using maximum likelihood and Bayesian approaches strongly support the monophyly of Solenoceridae, Aristeidae and Benthesicymidae, but find Sicyoniidae nested within Penaeidae, making this family paraphyletic. Penaeoidea comprises two lineages: the former three families in one while the latter two in another. The diversification of these lineages may be related to bathymetry. The penaeid-like lineage diversified in the Triassic, earlier than the aristeid-like lineage with an origin in the Jurassic. Taxonomic revisions within Penaeoidea are also proposed for further investigation. Due to the paraphyly of Penaeiclae and the high genetic divergence among the three penaeid tribes of Burkenroad [Burkenroad, M.D., 1983. Natural classification of Dendrobranchiata, with a key to recent genera. In: Schram, F.R. (Ed.), Crustacean Issues 1. Crustacean Phylogeny. A.A. Balkema, Rotterdam, pp. 279-290], these tribes should be treated as having the same taxonomic rank as Sicyoniidae, while the family ranking of Benthesicymidae has to be re-considered owing to the low genetic divergence between the benthesicymids and the aristeids.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Ma K.Y., Chow L.H., Wong K.J.H., Chen H.N., Ip B.H.Y., Schubart C.D., Tsang L.M., Chan B.K.K. & Chu K.H. 2018. Speciation pattern of the horned ghost crab Ocypode ceratophthalmus (Pallas, 1772): An evaluation of the drivers of Indo-Pacific marine biodiversity using a widely distributed species. Journal of Biogeography 45(12): 2658-2668. DOI:10.1111/jbi.13443
Abstract [+] [-]Aim: The high species richness of the Indo‐Australian Archipelago (IAA) marine biodiversity hotspot has been attributed to three competing hypotheses: Centre of Origin/Centre of Overlap/Centre of Accumulation. While most phylogeographic studies testing these hypotheses have focused on marine fishes, we provide a new perspective on this evolutionary important question by examining the population genetics of the horned ghost crab Ocypode ceratophthalmus sensu lato (Ocypodidae) whose distribution spans the entire Indo‐Pacific and contains at least two colour morphs.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Macpherson E. & Chan T.Y. 2008. Some lithodid crabs (Crustacea: Decapoda: Lithodidae) from Taiwan and adjacent waters, with the description of one new species from Guam. Zootaxa 1924: 43-52
Abstract [+] [-]Seven species of Lithodid crabs were collected during cruises off Taiwan and Guam. One new species, Lithodes paulayi is described and illustrated. Neolithodes nipponensis, Lithodes sp., Paralomis arae, P. dofleini and P. truncatispinosa are reported from these islands for the first time, extending the distributional range in each case. Lithodes paulayi closely resembles L. longispina Sakai, 1971, from off Japan and the central Pacific, but can be differentiated by the branchial region possessing two long dorsal spines and only one long marginal spine, whereas L. longispina has only one long dorsal spine, situated at level of cardiac spines, and two long marginal spines. The description of a juvenile of P. arae Macpherson, 2001, is also included.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Macpherson E. 2013. New species and new occurrences of squat lobsters (Crustacea, Decapoda, Munididae, Eumunididae) from French Polynesia, in Ahyong S.T., Chan T., Corbari L. & Ng P.K.(Eds), Tropical Deep-Sea Benthos 27. Mémoires du Muséum national d'Histoire naturelle 204:287-309, ISBN:978-2-85653-692-6
Abstract [+] [-]During the cruise TARASOC (September and October 2009) to the Tarava Seamounts, and Tuamotu and Society Archipelagos (French Polynesia), numerous specimens of squat lobsters belonging to the family Munididae (Agononida Baba & de Saint Laurent, 1996, Babamunida Cabezas et al., 2008, Bathymunida Balss, 1914, Heteronida Baba & de Saint Laurent, 1996, Munida Leach, 1820, Onconida Baba & de Saint Laurent, 1996, Paramunida Baba, 1988) and the family Eumunididae (Eumunida Smith, 1883) were collected. The study of these specimens revealed the presence of 27 species. Three species are described as new: Bathymunida corniculata n. sp., Munida atarapa n. sp. and M. rona n. sp.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Malay M.C.(.D., Rahayu D.L. & Chan T. 2018. Hermit crabs of the genera Calcinus Dana, Clibanarius Dana, and Dardanus Paul’son from the PANGLAO 2004 Expedition, with description of a new species and a checklist of the hermit crabs of the Philippines (Crustacea: Anomura: Paguroidea). Raffles Bulletin of Zoology 66: 23-65
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Malay M.C.D., Komai T. & Chan T.Y. 2012. A new cryptic species in the “Calcinus anani Poupin & McLaughlin, 1998” species complex (Decapoda: Anomura: Diogenidae): evidence from colouration and molecular genetics. Zootaxa 3367(1): 165–175
Abstract [+] [-]A new species of Calcinus is described from western Pacific material, including specimens previously identified as Calcinus anani Poupin & McLaughlin, 1998. The new species C. fuscus n. sp. differs from C. anani in the colouration in life, and their specific distinction is genetically supported by the barcoding gene cytochrome oxidase I (COI). The two species also have different geographic distributions, with C. fuscus n. sp. ranging from Japan to the Philippines, Papua New Guinea, and New Caledonia, while C. anani is restricted to French Polynesia. Moreover C. fuscus n. sp. is found at shallower depths than its sister species C. anani.
Accessible surveys cited (5) [+] [-]
Associated collection codes: IU (Crustaceans) -
Marin I. & Chan T.Y. 2014. Deep water echinoid-associated pontoniine shrimp “Periclimenes hertwigi Balss, 1913” species group (Crustacea: Decapoda: Caridea: Palaemonidae): species review, description of a new genus and species from Philippines. Zootaxa 3835(3): 301-324. DOI:10.11646/zootaxa.3835.3.1
Abstract [+] [-]The new pontoniine shrimp genus, Echinopericlimenes gen. nov., is suggested for four species, Periclimenes hertwigi Balss, 1913, Periclimenes dentidactylus Bruce, 1984, Periclimenes calcaratus Chace & Bruce, 1993 and Echinopericlimenes aurorae sp. nov., belonging to so-called “Periclimenes hertwigi Balss, 1913” species group sensu stricto. The new genus can be clearly separated by the unique form of hepatic tooth greatly extending beyond the pterygostomial margin of carapace, unique form of fingers of pereiopods II (chelipeds) and dactyli of ambulatory pereiopods III–V. All species referring to the new genus are similar in ecology being deep-water dwellers, usually collected deeper that 300 meters in associations with venomous sea urchins of the family Echinothuriidae (Echinodermata: Echinoidea). Remarks on ecology, description of the new species from Philippines and a key to all known species of Echinopericlimenes gen. nov. are presented.
Accessible surveys cited (6) [+] [-]
Associated collection codes: IU (Crustaceans) -
Marin I.N. & Chan T.Y. 2006. Two New Genera and a New Species of Crinoid-Associated Pontoniine Shrimps (Decapoda: Caridea: Palaemonidae). JOURNAL OF CRUSTACEAN BIOLOGY 26(4): 524-539
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Mclay C.L., Jeng M.S. & Chan T.Y. 2001. New records of Dromiidae, Aethridae, and Parthenopidae from Taiwan (Decapoda, Brachyura). Crustaceana 74(9): 963–976
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Mendoza J.C.E., Naruse T., Tan S.H., Chan T.Y., Richer de forges B. & Ng P.K. 2010. Case studies on decapod crustaceans from the Philippines reveal deep, steep underwater slopes as prime habitats for ‘rare’ species. Biodiversity and Conservation 19(2): 575-586. DOI:10.1007/s10531-009-9744-x
Abstract [+] [-]Relatively few studies have been done to define or assess rarity in the marine environment. Published studies have focused on shallow-water and intertidal habitats, and the available information appears to reflect the same pattern observed in terrestrial environments, i.e., that there are many rare species and few common species in any one given area. However, our studies of the abundance of new and/or supposedly rare taxa of decapod crustaceans from the deep, steep slopes of the island of Balicasag, in the central Philippines, have raised questions on how rarity should be defined in marine invertebrates. Examples of such supposedly rare species of crabs and lobsters (Crustacea: Decapoda) are presented here. That these animals come from deep, steep slopes, a relatively under-studied habitat, highlights the major gaps in current knowledge of marine biodiversity that are in part due to the inadequacy of both traditional and high technology sampling methodologies and the limited habitat types that the former can target. Low-technology, artisanal tangle nets have proved to be an optimal capture technique for deep-water decapod crustaceans on deep, steep slopes; many new taxa have been discovered and, in other cases, perceptions of rarity and endemicity have been corrected.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Mitsuhashi M. & Chan T. 2006. A new genus and species of deep-water pontoniine shrimp (Decapoda, Caridea, Palaemonidae) from Taiwan. Zoosystema 28(2): 389-398
Abstract [+] [-]A new genus and species of pontoniine shrimp, Patonia mclaughlinae n. gen., n. sp., is described and illustrated based on a single ovigerous female collectedat depths of 209 to 280 m, during a recent deep-sea expedition off Taiwan. This new genus differs from other Pontoniinae genera in a combination of characters: hepatic spine bearing a complete basal suture and possibly mobile, body laterally compressed, rostrum distinctly dentate along entire dorsal margin and unarmed ventrally, basal antennular segment tridentate distolaterally, and second pereiopod very slender with carpus much longer than chela.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Mitsuhashi M. & Chan T.Y. 2007. A new pontoniine shrimp genus and species (Crustacea: Decapoda: Palaemonidae) from the Philippine PANGLAO 2004 expedition. THE RAFFLES BULLETIN OF ZOOLOGY Suppl. No. 16: 1-6
Abstract [+] [-]A new genus and species of pontoniine shrimp, Blepharocaris panglao, has been found in Panglao Island in the Philippines. The new genus is unique in the Pontoniinae on account of the orbital rim being laminar and distinctly separated from the leaf-like inferior orbital angle. The relationship of this new genus with other similar pontoniines is discussed.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Mitsuhashi M. & Chan T.Y. 2008. Pontoniine shrimps of the genus Apopontonia Bruce, 1976 (Crustacea: Decapoda: Pontoniidae) from the Philippines Panglao 2004 Expedition, with description of one new species. THE RAFFLES BULLETIN OF ZOOLOGY Suppl. No. 19: 27-38
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Mitsuhashi M. & Chan T.Y. 2009. A New Deep-Sea Pontoniine Shrimp (Decapoda, Palaemonidae) of the “Periclimenes Foresti Bruce, 1981” Species Group from Taiwan. Crustaceana 82(7): 919-929. DOI:10.1163/156854009X427441
Abstract [+] [-]A new species of pontoniine shrimp, Periclimenes sandybrucei n. sp., is described and illustrated based on a specimen collected from deep water off northeastern Taiwan. The new species is allied to the “Periclimenes foresti Bruce, 1981” species group but can be readily distinguished from all the known species of this group by bearing three pairs of dorsolateral spines on the telson, and having the propodi of the third to fifth pereiopods unarmed.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Naruse T. 2013. Species of Corycodus A. Milne-Edwards, 1880 (Crustacea, Brachyura, Cyclodorippidae) collected from the Mozambique MAINBAZA and Madagascar MIRIKY expeditions, with description of a new species, in Ahyong S.T., Chan T.Y., Corbari L. & Ng P.K.(Eds), Tropical Deep-Sea Benthos 27. Mémoires du Muséum national d'Histoire naturelle 204:485-494, ISBN:978-2-85653-692-6
Abstract [+] [-]The present study describes a new species of Corycodus A. Milne-Edwards, 1880 (Cyclodorippidae) from Madagascar and re-describes the poorly known C. disjunctipes (Stebbing, 1910) from Mozambique. The two species are compared with congeners in detail. The present study brings the number of Corycodus species to seven.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Osawa M., Lin C.W. & Chan T. 2007. A new deep-sea squat lobster of the genus Munidopsis Whiteaves 1874 (Crustacea: Decapoda: Anomura: Galatheidea) collected by the Panglao 2005 Expedition to the Philippines. The Raffles Bulletin of Zoology suppl. 16: 15-20
Abstract [+] [-]A new deep-sea galatheid, Munidopsis dentifalx, is described on the basis of two specimens obtained at depths of 2,120-2,323 in by the PANGLAO 2005 expedition to the Philippines. The new species closely resembles M villosa Faxon, 1893, known from the Gulf of Panama and off Chile, but differs from that species in lacking antennal and epigastric spines on the carapace and a median spine on the abdominal segment 5, and in the spination of the P2-4 dactyli. The last mentioned character is unusual in the genus Munidopsis, the ultimate of the ventral marginal spines being far distant from the penultimate.
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Osawa M., Lin C.W. & Chan T.Y. 2013. Munidopsidae Ortmann, 1898 (Crustacea, Decapoda, Anomura) collected by the PANGLAO 2005 and AURORA expeditions to the Philippines, with descriptions of four new species from the Philippines and one new species from Taiwan, in Ahyong S.T., Chan T.Y., Corbari L. & Ng P.K.(Eds), Tropical Deep-Sea Benthos 27. Mémoires du Muséum national d'Histoire naturelle 204:231-286, ISBN:978-2-85653-692-6
Abstract [+] [-]Squat lobsters of the family Munidopsidae are reported from deep-waters off the Philippines based on the material collected by the PANGLAO 2005 and AURORA expeditions. The material includes three species of the genus Galacantha A. Milne-Edwards, 1880 and 23 species of Munidopsis Whiteaves, 1874. Four species are described as new to science and nine species are recorded for the first time from the Philippines. Colour notes and illustrations from fresh specimens are provided for all the species. The poorly known species, Munidopsis ceratophthalma Alcock, 1901, is described in detail based on a Philippine specimen to supplement the original account of the species. Re-examination of the specimen previously reported as M. ceratophthalma from Taiwan reveals that it represents a new species, which is hereby described in this report.
Accessible surveys cited (9) [+] [-]AURORA 2007, CHALCAL 2, KARUBAR, MUSORSTOM 4, NORFOLK 2, PANGLAO 2005, SALOMON 1, SALOMON 2, TAIWAN 2000
Associated collection codes: IU (Crustaceans) -
Pante E., Corbari L., Thubaut J., Chan T.Y., Mana R., Boisselier M.C., Bouchet P. & Samadi S. 2012. Exploration of the Deep-Sea Fauna of Papua New Guinea. Oceanography 25(3): 214-225. DOI:10.5670/oceanog.2012.65
Abstract [+] [-]Little is known of New Guinea's deep benthic communities. In fall 2010, the Museum national d'Histoire naturelle, Institut de Recherche pour le Developpement, and University of Papua New Guinea spearheaded an international three-leg cruise, BioPapua, aimed at exploring the deep waters of eastern Papua New Guinea and its satellite islands. Special attention was given to faunal assemblages associated with sunken wood and decomposing vegetation as well as seamount summits and slopes. In this article, we review the information available on the deep ecosystems of Papua New Guinea and summarize preliminary results of the BioPapua cruise.
Accessible surveys cited (1) [+] [-] -
Richer de forges B., Tan S.H., Bouchet P., Ng P.K., Chan T. & Saguil N. 2009. PANGLAO 2005 – Survey of the deep-water benthic fauna of the Bohol Sea and adjacent waters. The Raffles Bulletin of Zoology suppl. 20: 21-38
Abstract [+] [-]Following the successful completion of the PANGLAO 2004 expedition, PANGLAO 2005 was organized to fill in the gap to explore and research the deep-sea fauna of the Bohol and Sulu Seas between 18 May 2005 and 3 June 2005. Methods used on board the Philippines fisheries research vessel MV DA-BFAR are recorded and results arising from the expedition are discussed.
Accessible surveys cited (1) [+] [-] -
Richer de forges B. & Ng P.K. 2013. On a collection of spider crabs of the genera Rochinia A. Milne-Edwards, 1875 and Naxioides A. Milne-Edwards, 1865 (Crustacea, Brachyura, Majoidea, Epialtidae) from Mozambique Channel, Solomon, Vanuatu and Philippine Islands, with description of a new species of Rochinia, in Ahyong S.T., Chan T., Corbari L. & Ng P.K.(Eds), Tropical Deep-Sea Benthos 27. Mémoires du Muséum national d'Histoire naturelle 204:467-483, ISBN:978-2-85653-692-6
Abstract [+] [-]The study of a small collection of deep-water majoid crabs of the family Epialtidae brings some new data on the geographic distribution of species in the genus Rochinia A. Milne-Edwards, 1875 (R. pulchra (Miers, 1886), R. fultoni (Grant, 1905), R. aff. brevirostris (Doflein, 1904), R. aff. soela Griffin & Tranter, 1986, R. kotakae Takeda, 2001) and Naxioides taurus (Pocock, 1890). One new species, Rochinia boucheti n. sp., is described which differs from all congeners by the presence of numerous small tubercles on the carapace and its relatively short rostral spines. Males of R. kotakae are described for the first time.
Accessible surveys cited (7) [+] [-]
Associated collection codes: IU (Crustaceans) -
Saito tomomi, Okuno J. & Chan T.Y. 2009. A new species of Stenopus (Crustacea: Decapoda: Stenopodidae) from the Indo-West Pacific, with redefinition of the genus. The Raffles Bulletin of Zoology suppl. 20: 109-120
Abstract [+] [-]A new species of stenopodid shrimp of the genus stenopus, S. goyi, is described on the basis of material from Taiwan, Philippines, Sri Lanka ans the Maldive Islands. The new species is very unusual in that the dactyli of the fourth and fifth pereopods bear one to three ungues. The colouration of the new species is also unique in the genus. The uniunguiculate or biunguiculate dactyli of the ambulatory pereopods were generally considered as a constant character in stenopodid shrimps ans are used for generic diagnosis in the family, but variations in the number of ungues are found in S.Goyi, new species, sometimes even among pereopods of the same specimen. The genus Stenopus is rediagnosed to accommodate the new species. Revised keys to the genera of stenopodidae a,s species of stenopus are provided
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Sammy de grave N., Pentcheff D., Ahyong S.T., Chan T., Crandall K.A., Dworschak P.C., Felder D.L., Feldmann R.M., Fransen C.H.J.M., Goulding L.Y.D., Lemaitre R., Low M.E.Y., Ng P.K., Schweitzer C.E., Tan S.H., Tshudy D. & Wetzer R.L. 2009. A classification of living and fossil genera of decapod crustaceans. Raffles Bulletin of Zoology suppl. 21: 1–109
Abstract [+] [-]We present an updated classification for the entire Crustacea Decapoda, listing all known families and genera organized by higher taxonomic groups and including estimates of the number of species in every genus. All taxonomic names are also linked to the verified literature in which they were described, the first compilation of its kind for the Decapoda. To arrive at this compilation, we began with the classification scheme provided by Martin & Davis (2001) for extant families,, updated the higher classification and included the fossil taxa. The resultant framework was then populated with the currently valid genera and an estimate of species numbers within each genus. Our resulting classification, spanning both extant (living) and fossil taxa, is the first comprehensive estimate of taxonomic diversity within the entire Decapoda. The classification consists of 233 families of decapods containing 2,725 genera and an estimated 17,635 species (including both extant and fossil species). Of the families in our classification, 53 are exclusively fossil, 109 contain both fossil and extant species, and 71 are extant only. The current estimate for extant species is 14,756, whereas 2,979 species are known exclusively as fossils.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Tsang L.M., Chan T., Cheung M. & Chu K.H. 2009. Molecular evidence for the Southern Hemisphere origin and deep-sea diversification of spiny lobsters (Crustacea: Decapoda: Palinuridae). Molecular Phylogenetics and Evolution 51(2): 304-311. DOI:10.1016/j.ympev.2009.01.015
Abstract [+] [-]Spiny lobsters (family Palinuridae) are economically important marine animals that have been the subject of a considerable amount of research, However, the phylogeny of this group remains disputed, Morphological analyses have not been able to resolve the relationships of the various members of the group, and no agreement has yet been reached on its phylogeny as indicated by the different gene trees reported to date. In the present study, we attempt to reconstruct the phylogeny of Palinuridae and its allies using sequences from three nuclear Protein-coding genes (phosphoenolpyruvate carboxykinase, sodium-potassium ATPase alpha- subunit and histone 3). The inferred topology receives strong nodal support for most of the branches. The family Palinuridae is found to be paraphyletic with the polyphyletic Synaxidae nested within it. Stridentes forms a monophyletic assemblage, indicating that the stridulating sound producing Organ evolved only once in the spiny lobsters. By contrast, Silentes is paraphyletic, as Palinurellus is more closely related to Stridentes than to other Silentes genera. The three genera restricted to the southern high latitudes Jasus, Projasus and Sagmariasus) constitute the basal lineages in the spiny lobsters, suggesting a Southern Hemisphere origin for the group. Subsequent diversification appears to have been driven by the closure of the Tethys Sea and the formation of the Antarctic circumpolar current, which isolated the northern and southern taxa. Contrary to an earlier hypothesis that postulated evolution from a deep-sea ancestral stock, the shallow-water genus Panulirus is the basal taxon in Stridentes, while the deep-sea genera Puerulus and Linuparus are found to be derived. This indicates that the spiny lobsters invaded deep-sea habitats from the shallower water rocky reefs and then radiated. Our results suggest that Synaxidae is not a valid family, and should be considered to be synonymous with Palinuridae. We also found that the previously proposed subgenera Sagmariasus and Nupalirus are genetically highly diverged, and both warrant a generic status.
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Tsang L.M., Achituv Y., Chu K.H. & Chan B.K. 2012. Zoogeography of Intertidal Communities in the West Indian Ocean as Determined by Ocean Circulation Systems: Patterns from the Tetraclita Barnacles. PLoS ONE 7(9): e45120. DOI:10.1371/journal.pone.0045120
Accessible surveys cited (1) [+] [-]
Associated collection codes: IU (Crustaceans) -
Tshudy D., Chan T.Y. & Sorhannus U. 2007. Morphology based cladistic analysis of Metanephrops: the most diverse extant genus of clawed lobster (Nephropidae). Journal of Crustacean Biology 27(3): 463–476
Abstract [+] [-]We performed the first cladistic analysis of Metanephrops , the most diverse extant genus of clawed lobster, using a morphology-based data matrix of all 20 species of Metanephrops and 35 cladistically informative characters, all external hard parts. Unweighted cladistic analysis corroborates previous studies that indicated that homoplasy is rampant in the evolution of clawed lobsters. Only 5 of the 68 synapomorphies identified by the analysis are unambiguous, unreversed synapomorphies. Recent species of Metanephrops have traditionally been divided (non-cladistically) into four morphology-based groups. Cladistic analyses support the traditional, arafurensis , Atlantic/ binghami , and japonicus groupings; these groups are monophyletic. The thomsoni group is not supported by the cladogram. The (two) oldest known fossil Metanephrops species occur in Late Cretaceous, shallow marine rocks of the eastern/Atlantic side of the Antarctic Peninsula. The stratigraphic and geographic occurrences of these fossil species are the basis for the previously hypothesized, Late Cretaceous, southern high latitude origin of Metanephrops . Cladistic results corroborate that Metanephrops originated in the southern high latitudes. The cladistically most plesiomorphic single species, the recent M. challengeri , and the next most plesiomorphic species, the Late Cretaceous M. rossensis , are both known from the high southern latitudes. Likewise, the most plesiomorphic species group, the binghami group, is best known from the high southern latitudes.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Tsoi K.H., Chan T. & Chu K.H. 2011. Phylogenetic and biogeographic analysis of the spear lobsters Linuparus (Decapoda: Palinuridae), with the description of a new species. Zoologischer Anzeiger - A Journal of Comparative Zoology 250(4): 302-315. DOI:10.1016/j.jcz.2011.04.007
Abstract [+] [-]Linuparus White, 1847 comprises three extant species, Linuparus trigonus (Von Siebold, 1824), L. sordidus Bruce, 1965, and L. somniosus Berry and George, 1972, as well as 32 fossil species. Most fossil records are from North America and Europe, but the extant species are all confined to the Indo-West Pacific. Different colour forms in L. trigonus and L. sordidus have been noted, with Northern Hemisphere specimens generally darker in colour for both species. The phylogenetic relationships of the extant Linuparus species, including the colour forms, were investigated using mitochondrial 12S rRNA and COI gene sequence analysis. We found no genetic evidence to differentiate the colour morphs of L. sordidus, but the two colour forms of L. trigonus were clearly distinct at the species level. This is supported morphologically by a consistent difference in the shape of the thoracic sternum between the two forms. The paler coloured Southern Hemisphere form is described as a new species, L. meridionalis. Phylogenetic analysis shows that L. trigonus and L. meridionalis sp. nov. are derived sister taxa, while L. somniosus is basal within the genus. Thus the present results support the previous hypothesis that Linuparus was originated in shallow water. Crown Copyright (C) 2011 Published by Elsevier GmbH. All rights reserved.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Wang T.W., Komai T., Chen C.L. & Chan T.Y. 2016. Globospongicola jiaolongi Jiang, Kou & Li, 2015, a junior subjective synonym of G. spinulatus Komai & Saito, 2006 (Crustacea: Decapoda: Stenopodidea: Spongicolidae). Zootaxa 4072(5): 579-584. DOI:10.11646/zootaxa.4072.5.5
Accessible surveys cited (3) [+] [-]
Associated collection codes: IU (Crustaceans) -
Yang C.H., Chen I.S. & Chan T.Y. 2008. A new slipper lobster of the genus Petrarctus (Crustacea: Decapoda: Scyllaridae) from the west pacific. The Raffles Bulletin of Zoology Supplement No. 19: 71-81
Abstract [+] [-]A new species of slipper lobster, Petrarctus holthuisi, new species, is found from the recent expeditions to the Philippines and Vanuatu. The new species resembles P. rugosus (H. Milne Edwards, 1837) but has a different colouration and several morphological differences. Comparisons of the partial sequence of cytochrome c oxidase subunit I (COI) show high degree of divergence (12.5-22.3%) among all the species of Petrarctus. The molecular genetic analysis also suggests that the recent separation of Scyllarus sensu Into may need to be revised. A key to all Petrarctus species is provided.
Accessible surveys cited (4) [+] [-]
Associated collection codes: IU (Crustaceans) -
Yang C.H., Chan T.Y. & Chu K.H. 2010. Two new species of the “Heterocarpus gibbosus Bate, 1888” species group (Crustacea: Decapoda: Pandalidae) from the western Pacific and north-western Australia. Zootaxa 2372: 206-220
Abstract [+] [-]The widely distributed deep-sea caridean shrimp Heterocarpus gibbosus Bate, 1888 was previously believed to exhibit considerable variations in the development of the basal rostral crest. Based on the comparison of abundant material from the western Pacific, combined with a molecular genetic analysis using partial sequences of the mitochondrial COI and 16S rRNA genes, three distinct species could be recognized. The true H. gibbosus has a moderately high basal rostral crest and appears to have a more eastern distribution from the South China Sea to the Indian Ocean. Both forms with a very low or very high basal rostral crest are currently undescribed and mainly distributed along the western coast of the Pacific from Japan to Fiji. The low basal rostral crest form, H. abulbus sp. nov., is unique in the genus by lacking a distinct abdominal boss and appears to be restricted to Japan, Taiwan and NE Philippines. The very high basal rostral crest form, H. corona sp. nov., occurs in the western Pacific down to NW Australia.
Accessible surveys cited (7) [+] [-]
Associated collection codes: IU (Crustaceans) -
Yang C.H., Chen I.S. & Chan T. 2011. A new slipper lobster of the genus Galearctus Holthuis, 2002 (Crustacea, Decapoda, Scyllaridae) from New Caledonia. Zoosystema 33(2): 207-217. DOI:10.5252/z2011n2a4
Abstract [+] [-]Material previously identified as Galearctus kitanoviriosus (Harada, 1962) from New Caledonia has been found to consist of two distinct species. These species differ in the shape of the gastric tooth, third pereiopod propodus, antennal segment IV and thoracic sternum. The shallow water form is the true G. kitanoviriosus, while the deep-water form is new to science. Genetic comparison of the sequence of the barcoding gene, mitochondrial cytochrome c oxidase subunit (COI), also supports the separation.
Accessible surveys cited (7) [+] [-]
Associated collection codes: IU (Crustaceans) -
Yang C.H. & Chan T.Y. 2012. On the taxonomy of the slipper lobster Chelarctus cultrifer (Ortmann, 1897) (Crustacea: Decapoda: Scyllaridae), with description of a new species. THE RAFFLES BULLETIN OF ZOOLOGY 60(2): 449–460
Abstract [+] [-]The slipper lobster Chelarctus cultrifer (Ortmann, 1897), a putatively wide-spread Indo-West Pacific species, is well-known in Japan. However, recent collections from Taiwan and the Philippines, and comparisons with material from Indonesia and elsewhere revealed that there are actually two species confused under this name. The two species differ markedly in morphology and colour. On the basis of the lectotype designation of C. cultrifer by Holthuis (2002, from Indonesia), the material from Taiwan and Japan is shown to be actually undescribed and is named herein. Chelarctus cultrifer sensu stricto is restricted to the material from the more southern localities in the Philippines westwards to Iles Glorieuses. Genetic comparison of sequences of the barcoding gene, mitochondrial cytochrome c oxidase subunit (COI), supported the species separation. The molecular data further suggested that two genetic forms are present within C. cultrifer sensu stricto, and therefore, the subspecific name C. cultrifer meridionalis (Holthuis, 1960) is resurrected.
Accessible surveys cited (7) [+] [-]
Associated collection codes: IU (Crustaceans) -
Yang C.H., Bracken-grissom H., Kim D., Crandall K.A. & Chan T.Y. 2012. Phylogenetic relationships, character evolution, and taxonomic implications within the slipper lobsters (Crustacea: Decapoda: Scyllaridae). Molecular Phylogenetics and Evolution 62(1): 237-250. DOI:10.1016/j.ympev.2011.09.019
Abstract [+] [-]The slipper lobsters belong to the family Scyllaridae which contains a total of 20 genera and 89 species distributed across four subfamilies (Arctidinae, Ibacinae, Scyllarinae, and Theninae). We have collected nucleotide sequence data from regions of five different genes (16S, 18S, COI, 28S, H3) to estimate phylogenetic relationships among 54 species from the Scyllaridae with a focus on the species rich subfamily Scyllarinae. We have included in our analyses at least one representative from all 20 genera in the Scyllaridae and 35 of the 52 species within the Scyllarinae. Our resulting phylogenetic estimate shows the subfamilies are monophyletic, except for Ibacinae, which has paraphyletic relationships among genera. Many of the genera within the Scyllarinae form non-monophyletic groups, while the genera from all other subfamilies form well supported clades. We discuss the implications of this history on the evolution of morphological characters and ecological transitions (nearshore vs. offshore) within the slipper lobsters. Finally, we identify, through ancestral state character reconstructions, key morphological features diagnostic of the major clades of diversity within the Scyllaridae and relate this character evolution to current taxonomy and classification. (C) 2011 Elsevier Inc. All rights reserved.
Accessible surveys cited (2) [+] [-]
Associated collection codes: IU (Crustaceans) -
Yang C.H., Sha Z., Chan T.Y. & Liu R. 2015. Molecular phylogeny of the deep-sea penaeid shrimp genus Parapenaeus (Crustacea: Decapoda: Dendrobranchiata). Zoologica Scripta 44(3): 312-323. DOI:10.1111/zsc.12097
Abstract [+] [-]The commercial deep-sea penaeid shrimp genus Parapenaeus contains 15 species, three subspecies and two forms in the Indo-West Pacific and the Atlantic. Novel nucleotide sequence data from five different genes (COI, 16S, 12S, NaK and PEPCK) were collected to estimate phylogenetic relationships and taxonomic status amongst all but one subspecies in this genus. The phylogenetic results only support two of the four species groups previously proposed for this genus and indicate an evolution direction of the genital organs from simple to complex. The present results suggest that Parapenaeus originated in the shallow waters of the West Pacific with subsequent migration to the deep sea and the Atlantic. The molecular data reveal that there was probably misidentification of females between Parapenaeus australiensis and Parapenaeus ruberoculatus, with females previously assigned as P. australiensis likely being the females of P. ruberoculatus, while material identified as P. australiensis forma nodosa being the true P. australiensis females. On the other hand, Parapenaeus longipes forma denticulata truly represents a variation of the same species, while the subspecies Parapenaeus fissuroides indicus warrants a specific rank.
Accessible surveys cited (7) [+] [-]
Associated collection codes: IU (Crustaceans) -
Yang C.H., Chan T.Y. & Kumar A.B. 2018. The deep-sea commercial caridean shrimp, Heterocarpus woodmasoni (Crustacea: Decapoda: Panalidae), with description of a new species from the western Pacific Ocean. Bulletin of Marine Science 94(1): 85-99. DOI:10.5343/bms.2017.1119
Abstract [+] [-]The availability of fresh specimens of the commercial, deep-sea pandalid shrimp, Heterocarpus woodmasoni Alcock, 1901, from India revealed that material referred to this species from India and the western Pacific Ocean have distinct differences in coloration, morphology, and genetic divergence. Although the syntypes of H. woodmasoni cannot be located now, a color photograph of a typotypic specimen from the Andaman Sea allowed the determination of the Indian form as the true H. woodmasoni. To stabilize the taxonomy in the “H. woodmasoni” species group, a neotype is selected for H. woodmasoni from an Indian specimen with both coloration and molecular barcoding information. The western Pacific form is described as a new species, Heterocarpus fascirostratus sp. nov., which differs from H. woodmasoni in having a banded rostrum, eggs reddish brown instead of greenish brown, lacking rostral crest, armed usually with fewer dorsolateral spines on the telson, the overhanging spine on the abdominal somite III not markedly recurved downwards, and a rather straight postantennal carina.
Accessible surveys cited (8) [+] [-]
Associated collection codes: IU (Crustaceans)