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Tegula pfeifferi
''Tegula pfeifferi'' is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.〔Rosenberg, G. (2012). ''Tegula pfeifferi'' (Philiippi, 1846). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=590971 on 2012-09-01〕''Tegula pfeifferi'' is more commonly known as "Pfeiffer's Top Shell".〔()〕
==Description==
The height of the shell is 30 mm, its diameter 33 mm. The solid, umbilicate shell has a conical shape with an acutely angled periphery. It is dark purplish or brownish-purple and obliquely striate; the base radiately striate or streaked with white. The elevated spire is strictly conical. The apex is eroded. The about 7 whorls are planulate above, the last acutely angular at the periphery. The whorls are smooth or with fine spiral striae, and ill-defined longitudinal folds. The base of the shell is smooth and obsoletely plano-concave. The subhorizontal aperture occupies about half the area of the base. The columella is dentate in the middle, expanded above in a white callus. The circular umbilicus is profound and surrounded by a white zone.〔(Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia ) (described as ''Chlorostoma pfeifferi'')〕
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