Turbonilla hemphilli explained

Turbonilla hemphilli is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.^{[1] [2]}

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.^[3]

Distribution

This species occurs in the following locations:

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

References

• 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

• Biodiversity Heritage Library (7 publications)
• Encyclopedia of Life
• USNM Invertebrate Zoology Mollusca Collection
• ITIS
• World Register of Marine Species

Notes and References

1. 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
2. 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.
3. https://www.jstor.org/stable/pdfplus/4062489.pdf?acceptTC=true 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