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Animal Database
Promachoteuthis sulcus
Rarest-animal-species-discovered-2014
Information
Range a single specimen caught by the German research vessel R/V Walther Herwig in an open net off Tristan da Cunha, southern Atlantic Ocean (36°49′S 12°17′W), at a depth of 1,750–2,000 m (5,740–6,560 ft).
Scientific Classification
Kingdom Animalia
Phylum Mollusca
Class Cephalopoda
Order Teuthida
Family Promachoteuthidae
Genus Promachoteuthis
Species Promachoteuthis sulcus

The Promachoteuthis sulcus, is a new species of promachoteuthid squid. It is distinguished from related taxa on the basis of several morphological features: nuchal fusion between the head and mantle, much larger size of arm suckers compared to club suckers, greater width of tentacle base than arm base, a recessed club base, and the presence of an aboral tentacle groove.

Promachoteuthis sulcus is known from a single specimen caught by the German research vessel R/V Walther Herwig in an open net off Tristan da Cunha, southern Atlantic Ocean (36°49′S 12°17′W), at a depth of 1,750–2,000 m (5,740–6,560 ft).

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