''Galeodea triganceae'' is a species of large

sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...

, a

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...

in the family Cassidae, the helmet snails.

Shell description

The maximum shell height is 48 mm, and maximum width 31 mm.

Distribution

This species is endemic to New Zealand Powell A. W. B. (1979). William Collins Publishers Ltd, Auckland . including the Chatham Islands.

Habitat

This helmet shell is found at depths of between 90 and 600 m.

References

triganceae Gastropods described in 1953 {{Cassidae-stub