| Diloma nanum | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Trochidae |
| Genus: | Diloma |
| Species: | D. nanum |
| Binomial name | |
| Diloma nanum Gould, 1861 | |
Diloma nanum is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. [1] [2]
The small, solid, brown shell has an oval-round shape with a diameter of 5 mm. It contains four convex, very distinct whorls. The apex is simple. The light-colored base of the shell is rounded and hardly perforated. The umbilicus is rather large and plicate-crenulate. The arcuate columella is denticulate. The inner lip is undulate. The throat is livid. [3]
This marine species occurs off the Ryukyu Islands
The Trochidae, common name top-snails or top-shells, are a taxonomic family of very small to large sea snails, marine gastropod molluscs in the clade Vetigastropoda.
Diloma is a genus of medium-sized sea snails, marine gastropod mollusks in the family Trochidae, the top snails.
Diloma aethiops, whose common names include scorched monodont, spotted black topshell, and in the Maori language pūpū, pūpū-mai, or māihi is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, subfamily Monodontinae.
Diloma subrostratum, common name the mudflat top shell, is a species of small sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Diloma bicanaliculatum, common name the knobbed top shell, is a species of small sea snail, a marine gastropod mollusk, in the family Trochidae, the top snails. The size of the shell varies between 10 mm and 20 mm.
The bluish top shell is a species of small sea snail, a marine gastropod, in the family Trochidae, the top snails.
Diloma aridum is a species of small sea snail, a marine gastropod mollusc in the family Trochidae.
Diloma zelandicum is a species of sea snail, a marine gastropod mollusc in the family Trochidae, the top snails or top shells.
Diloma coracinum is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails. The Māori name is māihi.
Austrocochlea is a genus of medium-sized sea snails, marine gastropod molluscs in the family Trochidae, the top snails, also known as top shells.
Diloma samoaense is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Monodonta is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails.
Chlorodiloma is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails.
Cantharidus festivus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Synaptocochlea montrouzieri is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Diloma concameratum, common name the speckled periwinkle, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Austrocochlea constellata is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Diloma durvillaea is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Diloma radula is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Monodonta glabrata is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.