Tegula luctuosa
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| Tegula luctuosa | |
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| Drawing with two views of Tegula luctuosa | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Family: | Tegulidae |
| Genus: | Tegula |
| Species: | T. luctuosa |
| Binomial name | |
| Tegula luctuosa | |
| Synonyms | |
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Tegula luctuosa is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.[2]
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]