Tegula luctuosa

Tegula luctuosa is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.^[2]

Tegula luctuosa
Drawing with two views of Tegula luctuosa
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Order:	Trochida
Superfamily:	Trochoidea
Family:	Tegulidae
Genus:	Tegula
Species:	T. luctuosa
Binomial name
Tegula luctuosa (d'Orbigny, 1841) [1]
Synonyms
Chlorostoma luctuosum (d'Orbigny, 1841) Chlorostoma tropidophorum A. Adams, 1851 Trochus bicarinatus Potiez, V.L.V. & A.L.G. Michaud, 1838 Trochus carinatus Koch in Philippi Trochus luctuosus d'Orbigny, 1841 (original combination)

Description

The height of the shell attains 35 mm, its diameter 44 mm. The solid, heavy shell is depressed, broadly umbilicate, and has a conoidal shape. It is black or purplish. The spire is more or less depressed. The sutures are linear. The shell contains 5 to 6 whorls. The upper ones have a strong carina midway between the sutures. The body whorl is carinated at the periphery and above, generally showing a less prominent carina on the base near the periphery. The aperture is oblique. The arcuate columella is oblique. The umbilicus is broad and deep, with a spiral rib within. This species is characterized by its wide umbilicus and strongly keeled whorls.^[3]

Distribution

This species occurs in the Pacific Ocean between Peru and Chile.