''Crassispira aequatorialis'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

, a marine

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Pseudomelatomidae Pseudomelatomidae is a family (biology), family of predatory sea snails, marine gastropods included in the superfamily Conoidea (previously Conacea) and part of the Neogastropoda (Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005), Bouchet & Ro ...

Description

Distribution

This marine species occurs off Northeast

Sumatra Sumatra () is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the list of islands by area, sixth-largest island in the world at 482,286.55 km2 (182,812 mi. ...

and was found at a depth of 750 m.

References

* Thiele, J., 1925. ''Gastropoden der Deutschen Tiefsee-Expedition''. In:. Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition II. Teil, 17(2), Gutstav Fischer, Berlin. * A. Sysoev, 1997, Mollusca Gastropoda: New deep-water turrid gastropods (Conoidea) from eastern Indonesia ; In: A. CROSNIER & P. BOUCHET (eds). Résultats des Campagnes MUSORSTOM, Volume 16. Mém. Mus. natn. Hist, nat., 172: 325–355. Paris .

External links

* aequatorialis Gastropods described in 1925 {{Pseudomelatomidae-stub