Pseudocetonurus septifer is a species of rattail, the only known species in the genus Pseudocetonurus. This fish is found at depths of up to 950 m in the waters around Hawaii and in the south-eastern Pacific. It has recently also been recorded on the other side of the Pacific, near Taiwan, and this species probably has a pan-Pacific distribution but has been underrecorded due to the depths in which it lives.
Pseudocetonurus septifer | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Gadiformes |
Family: | Macrouridae |
Subfamily: | Macrourinae |
Genus: | Pseudocetonurus Sazonov & Shcherbachev, 1982 |
Species: | P. septifer
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Binomial name | |
Pseudocetonurus septifer Sazonov & Shcherbachev, 1982
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This species attains a length of up to 39 cm. It is unique among rattails in having 7 branchiostegal rays and a large gill opening. This is a generally very dark, sometimes black, fish with a very large head and small, widely spaced eyes. There is a small bioluminescent organ located between the pelvic fins.
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