A new genus and two new species of deep water Buccinidae collected during MAINBAZA are described: Pollia imprimelata sp. nov. And Micrologus mochatinctus gen. & sp. nov., both from Almirante Leite Bank. Pollia sowerbyana (Melvill & Standen, 1903) is recorded from Madagascar and the variability of this species is discussed.

MAINBAZA, MIRIKY

Deep-water species from the western Indian Ocean off the East African coast and Madagascar, belonging to the subfamily Photinae, are discussed and compared with species from the West Pacific. Phos elegantissimus Hayashi & Habe, 1965, P. hirasei Sowerby, 1913 and P. laevis Kuroda & Habe in Habe, 1961 are recorded from Mozambique and/or from Madagascar, hereby extending their known range considerably into the western Indian Ocean. The East African specimens formerly assigned to Phos roseatus Hinds, 1844 are found to differ from this West Pacific species. In total, five species are described as new: Phos ganii sp. nov., P. geminus sp. nov., P. ladoboides sp. nov., P. pulchritudus sp. nov. and P. testaceus sp. nov.

ATIMO VATAE, BIOMAGLO, Restricted, Restricted, INHACA 2011, MAINBAZA, MD32 (REUNION), MIRIKY, Restricted

The species found in Mozambique and surrounding waters belonging to family Mitromorphidae Casey, 1904, are revised and figured. From a total number of 36 species, 13 were already described, Anarithma alphonsiana (Hervier, 1900); A. aurea Boyer & Renda, 2022; A. borbonica Boyer & Renda, 2022; A. lachryma (Reeve, 1845); A. maesi Drivas & Jay, 1986; A. melvilli Boyer, 2022; A. metula (Hinds, 1843); A. pamila (Duclos, 1848); Lovellona atramentosa (Reeve, 1849); Mitromorpha candeopontis Chino & Stahlschmidt, 2009; M. fischeri (Hervier, 1900); M. kilburni Drivas & Jay, 1986 and M. punctata Chino & Stahlschmidt, 2009; while 23 have been considered new for the Science, being described and represented in the present work. These are: Anarithma aurantioquadrata, Mitromorpha albobandata, M. carsteni, M. castanea, M. chuliae, M. conduciensis, M. eucitharomorpha, M. gianuzzii, M. gloriosensis, M. harasewichi, M. nampulae, M. nappoi, M. purpurolineata, M. pusaterii, M. rosacea, M. ruelai, M. rufolineata, M. rufomaculata, M. sera, M. templadoi, M. uniplicata, M. valverdei and M. verdejoi. Mitromorpha candeopontis Chino & Stahlschmidt, 2009 and Mitromorpha punctata Chino & Stahlschmidt, 2009 are cited for first time from West Indian Ocean.

BENTHEDI, BIOMAGLO, MAINBAZA, MIRIKY