Promachoteuthis sulcus
| Promachoteuthis sulcus | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Coleoidea |
| Order: | Teuthida |
| Family: | Promachoteuthidae |
| Genus: | Promachoteuthis |
| Species: | P. sulcus |
| Binomial name | |
|
Promachoteuthis sulcus Young, Vecchione & Roper, 2007 |
|
Promachoteuthis sulcus is a 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 tentacle groove.
P. 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 / 36.817°S 12.283°W), at a depth of 1,750–2,000 m (5,740–6,560 ft).
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