Promachoteuthis is a genus of small, weakly-muscled squid found at bathypelagic depths. Three species have been formally described, while another two await description.
Parateuthis tunicata, the only known member of the genus Parateuthis, is the scientific name currently given to a species of squid based on a single specimen. The validity of Parateuthis and of P. tunicata is uncertain. The sole specimen was found in the Antarctic Ocean, and is held in the repository at the Museum für Naturkunde in Berlin, Germany.
Dentaliida is one of the two orders of scaphopod mollusks, commonly known as elephant's tusk shells. The order Dentaliida contains most of the larger scaphopods, and is distinguished from the other order by the shape of its shell, the shape of the foot, and the arrangement of some of their internal organs.
Idiosepiidae, also known as the pygmy squids, is a family of squids in the superorder Decapodiformes. They are the smallest known squids.
Notonykia is a genus of squid in the family Onychoteuthidae. The type species is Notonykia africanae.
Pterygioteuthis is a genus of squid in the family Pyroteuthidae. Members are differentiated from the genus Pyroteuthis due to size and head shape. The genus is characterised by the presence of a lidded photophore over each eye.
Sigmurethra is a taxonomic category of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This is an informal group which includes most land snails and slugs.
Amphidromus coeruleus is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Camaenidae.
Occidenthella is a genus of sea slugs, specifically aeolid nudibranchs, in the family Flabellinidae. The only described species is Occidenthella athadona, a combination named in 2017. It was originally described as Coryphella athadona in 1875. The genus name Occidenthella, from occidens, meaning "west" in Latin, refers to its distribution in the Western Pacific Ocean.
Hemidonax is a genus of bivalve molluscs. It is the only genus in the family Hemidonacidae, which is the only family in the superfamily Hemidonacoidea in the order Venerida.
Rokopella capulus is a species of monoplacophoran, a superficially limpet-like marine mollusc.
Rokopella euglypta is a species of monoplacophoran, a superficially limpet-like marine mollusc.
Rokopella goesi is a species of monoplacophoran, a superficially limpet-like marine mollusc.
Rokopella segonzaci is a species of monoplacophoran, a superficially limpet-like marine mollusc.
Vema ewingi is a species of monoplacophoran, a superficially limpet-like marine mollusc. It is found at the northern end of the Peru-Chile Trench and other locations off the coast of Peru.
Vema levinae is a species of monoplacophoran, a superficially limpet-like marine mollusc.
Amonovula is a monotypic genus of marine gastropod molluscs in the family Ovulidae, the ovulids, cowry allies or false cowries
Calliodentalium is a genus of scaphopodan molluscs. It is monotypic within the family Calliodentaliidae. It is known from the Atlantic, Indian, and Pacific Oceans.
Hyalocylis is a genus of gastropods belonging to the family Hyalocylidae. The genus has almost cosmopolitan distribution.
Euthrenopsis is a genus of sea snails, marine gastropod mollusks in the family Buccinidae, the true whelks. All species in the family are endemic to the waters of New Zealand.
