| Semicassis thomsoni | |
|---|---|
| | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Tonnoidea |
| Family: | Cassidae |
| Genus: | Semicassis |
| Species: | S. thomsoni |
| Binomial name | |
| Semicassis thomsoni (Brazier, 1875) | |
| Synonyms | |
| |
Semicassis thomsoni is a species of large predatory sea snail, a marine gastropod mollusc in the family Cassidae, the helmet shells and their allies. [1]
This marine species occurs in New Zealand. [2] and in the Australian part of the Tasman Sea.
Semicassis labiata is a species of large predatory sea snail, a marine gastropod mollusc. This species is in the subfamily Cassinae, the "helmet shells" and "bonnet shells", which feed on sea urchins.
Semicassis is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.
John William Brazier was a malacologist from Australia.

Pleurotomella amplecta is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.

Daphnella axis, common name the axle pleuratoma, is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.

Pseudodaphnella ramsayi is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
Pseudodaphnella retellaria is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
Pseudodaphnella barnardi is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.

Iredalea macleayi is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Iredalea is a small genus of sea snails, marine gastropod mollusks in the family Drilliidae.
Phalium, common name the bonnet shells, is a genus of large sea snails, marine gastropod molluscs in the subfamily Phaliinae of the family Cassidae, the helmet shells, bonnet shells and their allies.
Clanculus clangulus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Clanculus floridus, common name the florid clanculus, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

Eucithara guentheri is a small sea snail, a marine gastropod mollusk in the family Mangeliidae.

Guraleus jacksonensis is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

Pseudorhaphitoma darnleyi is a small sea snail, a marine gastropod mollusk in the family Mangeliidae.
Scrinium thomsoni is an extinct species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.
Inquisitor mastersi is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
Pseudodaphnella tincta is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
Signepupina is a genus of land snails with an operculum, terrestrial gastropod mollusks in the subfamily Pupillinae of the family Pupinidae.