Tochuina gigantea

Tochuina gigantea, common name the giant orange tochui, is a species of sea slug, a tritonid nudibranch, a marine gastropod mollusk in the family Tritoniidae.^[2]

Tochuina gigantea
A live individual of Tochuina gigantea, in situ, head end towards the camera
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Nudibranchia
Suborder:	Cladobranchia
Family:	Tritoniidae
Genus:	Tochuina
Species:	T. gigantea
Binomial name
Tochuina gigantea Bergh, 1904[1]
Synonyms[2]
Tritonia gigantea Bergh, 1904 (original combination) Tritonia tetraquetra (Pallas, 1788) sensu Bergh, 1879

Bergh (1879) used the name Tritonia tetraquetra in a sense different from Pallas (1788). The valid name for Tochuina tetraquetra sensu Bergh, 1879 is Tritonia gigantea Bergh, 1904.^[2][3] The complicated series of misinterpretations of Pallas' and Bergh's species are explained in a 2020 revision of the family Tritoniidae.^[4]