Turbonilla hemphilli

Turbonilla hemphilli
	Drawing of a shell of Turbonilla hemphilli
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Heterobranchia
Family:	Pyramidellidae
Genus:	Turbonilla
Species:	T. hemphilli
Binomial name
	Turbonilla hemphilli; Bush, 1899 [1]
Synonyms
	Chemnitzia aequalis auct. non Say, 1826; Chemnitzia hemphilli (Bush, 1899); Turbonilla admeta Bartsch, 1955; Turbonilla augeasi Bartsch, 1955; Turbonilla hydra Bartsch, 1955; Turbonilla flexio Corgan, 1967; Turbonilla (Chemnitzia) hemphilli Bush, 1899;

Turbonilla hemphilli is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.[2][3]

Turbonilla hemphilli Bartsch, 1917 is a synonym of Turbonilla vix Pimenta & Absalão, 1998

Description

The shell grows to a length of 13.4 mm. This species is closely related to Turbonilla dalli, but is more slender, longer, with a more pointed apex, and smaller protoconch. The less convex whorls of the teleoconch are more numerous ribs and the aperture is more elongated . The suture is well marked.

The projecting whorls of the small protoconch are transverse to the axis. The 12 whorls of the teleoconch are slightly convex. There are about 20 transverse ribs. These are rather stout, nearly perpendicular, and rounded. They are separated by about equally wide, deep, concave spaces terminating at the periphery of the body whorl in clean-cut ends. The base of the shell is rounded, and smooth. The aperture is squarish, somewhat expanded below and with rounded angles. The inner lip is thickened, and reflected. The entire surface is covered by very fine, microscopic striae.[1]

Distribution

This species occurs in the following locations:[2]

Caribbean Sea
Gulf of Mexico
Lesser Antilles
Mexico
Atlantic Ocean: off Bermuda

References

K.J. Bush (1899), Descriptions of New Species of Turbonilla of the Western Atlantic Fauna, with Notes on Those Previously Known; Proceedings of the Academy of Natural Sciences of Philadelphia, Vol. 51, No. 1 (Jan. - Mar., 1899), p. 169-170
Rosenberg, G. (2011). Turbonilla hemphilli Bush, 1899. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=420487 on 2012-03-01
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.

Bartsch, P. 1955. The pyramidellid mollusks of the Pliocene deposits of North St. Petersburg, Florida. Smithsonian Miscellaneous Collections 125(2): iii + 102 pp., 18 pls

External links

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[Bush-1] K.J. Bush (1899), Descriptions of New Species of Turbonilla of the Western Atlantic Fauna, with Notes on Those Previously Known; Proceedings of the Academy of Natural Sciences of Philadelphia, Vol. 51, No. 1 (Jan. - Mar., 1899), p. 169-170

[WoRMS-2] Rosenberg, G. (2011). Turbonilla hemphilli Bush, 1899. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=420487 on 2012-03-01

[3] 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.