Lithopoma tectum

Lithopoma tectum
Four shells of Lithopoma tectum
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Clade:	Vetigastropoda
Superfamily:	Trochoidea (superfamily)
Family:	Turbinidae
Genus:	Lithopoma
Species:	L. tectum
Binomial name
Lithopoma tectum (Lightfoot, 1786)
Synonyms
Astraea cubanum Philippi, 1849 Astraea imbricatum Gmelin, 1791 Astraea olfersii Philippi, 1850 Astraea papillatum Potiez & Michaud, 1838 Astraea tectum Lightfoot, 1786 Astralium guadeloupense Crosse, 1865 Calcar olfersii Philippi, 1850 Imperator cubanum Philippi, 1849 Pachypoma cubanum Philippi, 1849 Trochus corolla Reeve, 1861 Trochus cubanus Philippi, 1849 Trochus imbricatus Gmelin, 1791 Trochus olfersii Philippi, 1850 Trochus papillatus Potiez & Michaud, 1838 Trochus papillosus Philippi, 1850 Trochus saxosus Philippi, 1850 Trochus tectus Lightfoot, 1786 (original combination) Trochus tuberosus Philippi, 1843 Turbo ramosus Mörch, 1852

Lithopoma tectum, common name the West Indian starsnail, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.^[1]

Distribution

This species occurs in the Caribbean Sea, the Gulf of Mexico and the Lesser Antilles; in the Atlantic Ocean off Brazil.

Description

The maximum recorded shell length is 63 mm.^[2]

The imperforate, solid shell has an elevated-conic shape. It is longitudinally subobliquely crinkled. Its color pattern is reddish orange, marked in places with white and olivaceous. The suture is impressed and irregular. The 6½ whorls are subplanulate above, slightly concave in the middle. The apical one or two are smooth, the following longitudinally plicate. The folds are cut in the middle by two impressed spiral lines, projecting at the carinated periphery, and about twenty-three in number on the body whorl. The base of the shell is nearly flat with radiating stripe and five subgranose lirae. The aperture is oblique and rhomboidal. The white columella is arcuate and bidentate at its base. The umbilical tract is pale violaceous, bounded by a plicate cordon. The operculum is convex on its outside, with a median rib, minutely granulose, and excavated near the middle. ^[3]

Habitat

The minimum recorded depth is 0 m; the maximum recorded depth is 10 m.^[2]

References

1. Lithopoma tectum (Lightfoot, 1786).  Retrieved through: World Register of Marine Species on 9 September 2012.
2. Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi:10.1371/journal.pone.0008776.
3. G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia (described as Astralium guadeloupense)

• Turgeon, D.D., et al. 1998. Common and scientific names of aquatic invertebrates of the United States and Canada. American Fisheries Society Special Publication 26 page(s): 59
• 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.
• Alf A. & Kreipl K. (2011) The family Turbinidae. Subfamilies Turbininae Rafinesque, 1815 and Prisogasterinae Hickman & McLean, 1990. In: G.T. Poppe & K. Groh (eds), A Conchological Iconography. Hackenheim: Conchbooks. pp. 1-82, pls 104-245.

External links

• Gastropods.com: Lithopoma tectum tectum

Drawing with two views of a shell of Lithopoma tectum