Divia, Fukumori & Yahagi & Warén & Kano, 2019

DIVIA View in CoL GEN. NOV.

Type species: Shinkailepas briandi Warén & Bouchet, 2001: 174 ; figs 16a, b, 31d, 32, 33 (Menez Gwen, Mid Atlantic Ridge; holotype MNHN-IM-2000-32536). Divia briandi (Warén & Bouchet) , comb. nov. Monotypic.

E t y m o l o g y: N a m e d a f t e r t h e Fr e n ch d e e p -s e a expedition DIVA (DIVe Azores), which provided the first specimens of the type species D. briandi . Feminine.

Diagnosis: Shell small, limpet-neritiform, with cancellate surface sculpture; spire situated at posterior right; columellar shelf relatively wide. Protoconch colourless; larval operculum with spiral grooves. Head with eye lobes; cephalic lappets lacking. Epipodial fold simple, without serration. Mantle without filamentous caeca.

Remarks: Approximately 300 specimens of D. briandi from the Menez Gwen, Lucky Strike, Rainbow, Snake Pit, Logatchev and Ashadze vent fields share the same conchological and anatomical characteristics, which agree well with the homogeneity of mitochondrial and nuclear sequences of the species (for population genetics, see Yahagi et al., 2018). The apparent variation in the colour of the shells reflects different degrees of extraneous mineral deposition at different sites ( Fig. 2A–C).