| Gibbula tumida | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Trochidae |
| Genus: | Gibbula |
| Species: | G. tumida |
| Binomial name | |
| Gibbula tumida (Montagu, 1803) | |
| Synonyms [1] | |
| |
Gibbula tumida is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. [1]
The size of the shell varies between 4 mm and 10 mm. The small, narrowly umbilicate shell has an elevated conical shape. The color is whitish, variously strigate or maculated with brown, beneath white, unicolored or punctate with brown. The spire is elevated, somewhat turreted. The apex is acute. The sutures are impressed. The six whorls are convex, encircled by numerous, close fine striae. The periphery is obtusely angular. The base of the shell is slightly convex, and concentrically finely lirate. The sculpture is coarser than upon the upper surface. The large aperture is rounded-quadrate. The oblique columella is straightened and a little convex in the middle. The deep umbilicus is narrow, expanding and funnel-shaped at its opening.
This species is readily recognized by the form, the whorls being a little tumid just below the sutures, and the base of the aperture is usually a little emarginate. [2]
This species occurs in the North Atlantic Ocean and in the North Sea from Gibraltar to the Barentz Sea.
Ecrobia ventrosa, common name : the spire snail, is a European species of small brackish water snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
Steromphala divaricata, common name the divaricate gibbula, is a species of small sea snail, known as top snails or top shells, marine gastropod molluscs in the family Trochidae, the top snails.
Gibbula ardens is a species of small sea snail, known as top snails or top shells, marine gastropod molluscs in the family Trochidae, the top snails.
Gibbula albida, common name the whitish gibbula, is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.
Gibbula magus, common name the great top shell, is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.
Propebela rufa, common name the red conelet, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
Raphitoma purpurea is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
Clanculus corallinus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Steromphala adansonii is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Gibbula cicer is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Gibbula drepanensis is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Gibbula fanulum is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Gibbula guttadauri is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Gibbula philberti is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Steromphala spratti is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Gibbula zonata is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Gibbula benzi is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Gibbula tryoni is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Lirularia iridescens is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Gibbula stoliczkana is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.