Tegula pfeifferi

Tegula pfeifferi is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.^[1] Tegula pfeifferi is more commonly known as "Pfeiffer's Top Shell".^[2]

Tegula pfeifferi
Drawing showing an apertural view of a shell of Tegula pfeifferi
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Order:	Trochida
Superfamily:	Trochoidea
Family:	Tegulidae
Genus:	Tegula
Species:	T. pfeifferi
Binomial name
Tegula pfeifferi (Philiippi, 1846)
Synonyms
Chlorostoma achates Gould, 1861 Chlorostoma pfeifferi (Philippi, 1846) Trochus nordmanni Schrenck, 1862 Trochus pfeifferi Philippi, 1846 (original description)

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.^[3]

See also

• Littorina littorea