| Trochus firmus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Trochidae |
| Genus: | Trochus |
| Species: | T. firmus |
| Binomial name | |
| Trochus firmus Philippi, 1849 [1] | |
| Synonyms [2] | |
| |
Trochus firmus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. [2]
The size of the adult shell varies between 20 and 26 mm (0.79 and 1.02 in). The notably thick, solid shell has a rather conical shape. It is transversely sulcate. It has a pale green ground, painted with close purple-red streaks above. The base has red-spotted girdles. The whorls are a little subangular above the suture and a little plicate below the sutures, appearing somewhat terraced. The body whorl is rounded-angulate and passes into the base with a blunt angle. The sculpture consists of about seven weak smooth transverse grooves on the upper surface, and about four scarcely elevated concentric girdles on the base. The base of the shell is nearly plane, obsoletely[ clarification needed ] cingulate and false-umbilicate[ clarification needed ]. The funnel-shaped pit occupying the place of the umbilicus has a slightly elevated liration. The aperture is rhomboidal. The entirely simple columella is very oblique. [3]
This marine species occurs in the Persian Gulf.
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Rochia conus, common name the cone top shell, is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.
Clanculus kraussii is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
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Clanculus personatus, common name the masked clanculus, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
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Cantharidella picturata, common name the painted kelp shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Prothalotia chlorites is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Clanculus spadiceus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Notogibbula lehmanni, common name the many-coloured top shell, is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top shells.
Trochus erithreus is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.