Pseudorbis granulum explained

Pseudorbis granulum is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

Description

The size of the shell varies between 0.8 mm and 1.5 mm. The shell is scarcely unibilicated. The aperture is circular. The surface is spirally costate, not cancellated.^[1]

Distribution

This marine species is found in the Mediterranean Sea, originally off Sicily and recently off the Alboran Island.

References

• Rubio F. & Rodriguez Babio C. (1991 ["1990"]) Sobre la posición sistemática de Pseudorbis granulum Brugnone, 1873 (Mollusca, Archeogastropoda, Skeneidae) y descripción de Pseudorbis jameoensis n. sp., procedente de las Islas Canarias. Iberus 9(1–2): 203–207
• 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