Tegula excavata
| Tegula excavata | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Tegulidae |
| Genus: | Tegula |
| Species: | T. excavata
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| Binomial name | |
| Tegula excavata (Lamarck, 1822)
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| Synonyms | |
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Tegula excavata, common name the green-based tegula, is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.[1]
Description
The height of the shell varies between 12 mm and 18 mm. The umbilicate shell has a conical shape. It is dull grayish, olivaceous or pinkish, longitudinally lineolate with a darker shade, frequently appearing unicolored. The spire is conic. The apex is eroded or acute. The 6 to 7 whorls are flattened, scarcely convex, very obsoletely spirally grooved. The body whorl is acutely carinated at the periphery, flat or plano-concave beneath, concentrically lirate. The large aperture is subhorizontal, iridescent within. The columella is sinuous, unidentate in the middle, green, half surrounding the umbilicus with a sickle-shaped callus. The umbilicus is funnel-shaped, green or white within, broadly expanding at its opening.[2]
Distribution
This species occurs in the Gulf of Mexico, the Caribbean Sea and the Lesser Antilles.
References
- ^ Tegula excavata (Lamarck, 1822). Retrieved through: World Register of Marine Species on 20 April 2010.
- ^ Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia (described as Chlorostoma excavatum)