Cyclostrema pompholyx

Cyclostrema pompholyx is a species of sea snail, a marine gastropod mollusk in the family Liotiidae.[1]

Cyclostrema pompholyx
Original drawing of a shell of Cyclostrema pompholyx
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Vetigastropoda
Superfamily:	Trochoidea
Family:	Liotiidae
Genus:	Cyclostrema
Species:	C. pompholyx
Binomial name
Cyclostrema pompholyx (Dall, 1889)
Synonyms
Choristes pompholyx (Dall, 1889) Choristella pompholyx (Dall, 1889)

Description

(Original description by W.H. Dall) The maximum diameter of the base is 4.2 mm; the minimum diameter 3.0 mm. The height of the shell attains 3.0 mm. The white, thin and polished shell contains three rounded, rapidly enlarging whorls. The sculpture consists of incremental striae. The suture is deep but not channelled. The whorls are very round, but the spire is hardly rising above the body whorl. The base of the shell is rounded, with a very narrow umbilicus, into which the whorl descends without any angle or other change of curve. The large aperture is circular, the upper part a little angulated at the suture. The simple margin is sharp and somewhat expanded but hardly reflected.[2]

Distribution

This species occurs in the Gulf of Mexico.

References

1. Cyclostrema pompholyx (Dall, 1889). Retrieved through: World Register of Marine Species on 22 April 2010.
2. 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

• 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.