Skenea trochoides explained

Skenea trochoides is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

G.W. Tryon thought this species was a synonym of Cyclostrema peterseni Frielle, 1877 (now a synonym of Skenea peterseni (Friele, 1877))

Description

The size of the shell varies between 2 mm and 3 mm. The white shell is perforate, somewhat solid. It is opaque, smooth, and shining. The base of the shell contains sometimes a few faint oblique, curved lines;. The four whorls are convex and have a deep suture. The columellar lip is vertical, forming a slight angle with the outer lip at their junction.^[1]

Distribution

This species occurs in Arctic waters and in the northern Atlantic Ocean off Greenland, the Faroes and Scandinavia at depths between 60 m and 160 m.

References

• Friele H., 1876: Bidrag til Vestlandets Molluskfauna; Forhandlinger i Videnskabs-selskabet i Christiania 1875: 57–64
• Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213

Notes and References

1. https://www.biodiversitylibrary.org/item/77914 G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia