Calliostoma psyche explained

Calliostoma psyche, the Psyche top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.

Description

The size of the shell varies between 15 mm and 24 mm. This is the southern variety of Calliostoma bairdii of which W.H. Dall considered it to be a variety. It is paler and more delicately colored. It is less elevated and its lateral outlines are slightly concave.^{[1] [2]}

Distribution

This species occurs in the Gulf of Mexico and in the Atlantic Ocean from North Carolina to Key West, USA, at depths between 26 m and 443 m.

References

• Rosenberg, G., F. Moretzsohn, and E. F. García. 2009. Gastropoda (Mollusca) of the Gulf of Mexico, pp. 579–699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas

Notes and References

1. https://archive.org/details/manualofconcholo111tryo Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
2. https://archive.org/details/bulletinofmuseum18harv Dall W. H. 1889. Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877-78) and in the Caribbean Sea (1879-80), by the U.S. Coast Survey Steamer "Blake", Lieut.-Commander C.D. Sigsbee, U.S.N., and Commander J.R. Bartlett, U.S.N., commanding. XXIX. Report on the Mollusca. Part 2, Gastropoda and Scaphopoda. Bulletin of the Museum of Comparative Zoölogy at Harvard College 18: 1-492, pls. 10-40