Synaptocochlea caliginosa is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.The Indo-Pacific Moluscan Database: Synaptocochlea caliginosa
Description The oblong, imperforate shell is ear-shaped. Its color is blackish. The spire is small. The shell is transversely lirate, larger and smaller lirae alternating, obsoletely articulated with white. The oblong aperture is very oblique, greenish white within. Its black margin is crenulate. The inner lip is rather flattened. There is a narrow lunar umbilical rimation. The thin operculum is orbicular and multispiral G.W. Tryon (1890) Manual of Conchology XII; Academy of Natural Sciences, Philadelphia, 1890
Distribution This marine species occurs in the Indian Ocean off Mauritius.
References
Trew, A., 1984. The Melvill-Tomlin Collection. Part 30. Trochacea. Handlists of the Molluscan Collections in the Department of Zoology, National Museum of Wales.