Prosipho tuberculatus is a species of sea snail, a marine gastropod mollusk in the family Prosiphonidae, the true whelks.
Description The length of the shell attains 5 mm, its diameter 2.75 mm.
(original description) This shell is shortly fusiform and has a dirty whitish color. It contains 4.5 whorls.
The first 1.5 whorls are smooth and convex, forming a rounded, nipple-like apex. The next three whorls have four spiral lirae (ridges), while the body whorl has thirteen. The two or three uppermost lirae on the body whorl, like those on the spire, are finely nodular where they are crossed by approximately twenty longitudinal threads on the penultimate whorl. The entire surface is covered with fine growth lines.
The aperture is pear-shaped and smooth. It is white inside. It measures less than half the length of the shell. The columella is arched at the top and oblique at the bottom, and the siphonal canal is moderately broad, oblique, and slightly curved back.Smith, E. A. (1915). Mollusca. Part I. - Gastropoda Prosobranchia, Scaphopoda and Pelecypoda. British Antarctic Terra Nova Expedition, Natural History Reports (Zoology). 2(4): 61-112, pls 1-2
Distribution This marine species was found in de McMurdo Sound, Antarctica.
References
Engl, W. (2012). Shells of Antarctica. Hackenheim: Conchbooks. 402 pp
External links Egorova, E. (1982). Biological results of the Soviet Antarctic expeditions, 7. Molluscs of the Davis Sea [Егорова Э.Н. Результаты биологических исследований советских антарктических экспедиций. Вып. 7. Моллюски моря Дейвиса (Восточная Антарктика). Explorations of the Fauna of the Seas [Исследования фауны морей]. 26(34): 1-142]