Margarella antarctica is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae, the top snails.

Coleotrochus rex is a species of small sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

Gibbula cineraria is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.

Clanculus minor is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

This family is commonly known as the "top snails", because in many species the shell is shaped like a toy top.

Some marine snails such as the abalone and the top snails, Trochidae, have numerous small tentacles around the edge of the mantle.

It is very similar to that of the southern ribbed top snail, Austrocochlea constricta, and until recently the two species were considered to be identical.

Gaza compta is a species of sea snail, a marine gastropod mollusk in the family Gazidae, the top snails.

They are marine gastropod molluscs in the family Trochidae, the top snails.

Its common name is the granulated top snail.