Columbellidae Swainson, 1840

Little, Crispin T. S., Kumar, Rajendar, Johnson, Joel E. & Hoffman, Leon, 2025, Bathyal molluscs from Upper Pleistocene methane seeps in Krishna-Godavari Basin, offshore eastern India, Acta Palaeontologica Polonica 70 (3), pp. 443-477 : 455-456

publication ID	https://doi.org/10.4202/app.01179.2024
persistent identifier	https://treatment.plazi.org/id/4019EF34-4E60-FF98-CC09-F97775DA347A
treatment provided by	Felipe
scientific name	Columbellidae Swainson, 1840
status

Treatment

Family Columbellidae Swainson, 1840 View in CoL Columbellidae gen. et sp. indet.

Fig. 11C View Fig .

Material.— Two shells, SMF373108 About SMF and SMF373109 About SMF , Northern Indian Ocean, Krishna-Godavari Basin , Bay of Bengal, offshore eastern India, 15°51.6335’ N, 81°50.2274’ E, 1046 m water depth, 16.18–16.68 mbsf level, core NGHP-01-12A; Upper Pleistocene. For additional material see Table 1 GoogleMaps .

Description.—Elevated, small, smooth collumbellid shell with blunt apex. Protoconch paucispiral, one whorl with large nucleus, smooth, diameter about 600 µm. Teleoconch juvenile only, two whorls, smooth with very fine growth lines, impressed suture, very narrow shoulder. Outline straightened suprasutural whorl face, widely convex periphery, concave below, columellar area straightened. Aperture piriform with open straight siphonal channel, outer lip orthocline, thin.

Remarks.—All three shells are juveniles, so identification below family level is not possible.