Volvarina styria

Volvarina styria
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Marginellidae
Subfamily:	Marginellinae
Genus:	Volvarina
Species:	V. styria
Binomial name
Volvarina styria (Dall, 1889)
Synonyms
Hyalina styria (Dall, 1889) Marginella styria Dall, 1889 Prunum styrium (Dall, 1889)

Volvarina styria is a species of sea snail, a marine gastropod mollusk in the family Marginellidae, the margin snails.^[1]

Description

The length of shell attains 5.55 mm, its diameter 2 mm.

(Original description) The slender shell is extremely lucid, glassy or colored by the soft parts showing through. It contains 4½ whorls. The spire is conical, rounded, and rather blunt. The suture is visible, whiter than the rest of the shell, being thicker and more opaque. The shell is subfusiform, the convexity of the left side somewhat greater than that of the right. The aperture is very narrow. The outer lip is hardly thickened, produced and impressed toward its middle part. The columella is four-plaited, without callus. The aperture measures less than two thirds the length of the shell.^[2]

Distribution

References

1. Volvarina styria (Dall, 1889). Retrieved through: World Register of Marine Species on 24 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.; Moretzsohn, F.; García, E. F. (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. Texas A&M Press, College Station, Texas.
• Cossignani, T. (2006). Marginellidae & Cystiscidae of the World. L'Informatore Piceno. 408 pp