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| Polyipnus oluolus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Stomiiformes |
| Family: | Sternoptychidae |
| Genus: | Polyipnus |
| Species: | P. oluolus |
| Binomial name | |
| Polyipnus oluolus R. C. Baird, 1971 | |
Polyipnus oluolus is a species of ray-finned fish in the genus Polyipnus . It is found in the Marshall Islands. [1]
Marine hatchetfishes or deep-sea hatchetfishes are small deep-sea mesopelagic ray-finned fish of the stomiiform subfamily Sternoptychinae. They should not be confused with the freshwater hatchetfishes, which are not particularly closely related Teleostei in the characiform family Gasteropelecidae.
Polyipnus is a genus of oceanic ray-finned fish in the family Sternoptychidae. This is the largest genus of the marine hatchetfishes subfamily Sternoptychinae and indeed of the entire Sternoptychidae. It is not quite as apomorphic as their relatives; it may be that the genus is actually a paraphyletic assemblage of less advanced Sternoptychinae and would need to be split.
Polyipnus spinosus, commonly known as the spiny hatchetfish, is a species of ray-finned fish in the family Sternoptychidae. It occurs in deep water in the western central Pacific Ocean, at depths down to about 500 metres (1,600 ft).
Polyipnus tridentifer, commonly known as the three-spined hatchetfish, is a species of ray-finned fish in the family Sternoptychidae. It occurs in deep water in the Indo-Pacific Ocean, at depths between about 640 and 825 metres.
Polyipnus latirastrus, commonly known as the combside hatchetfish, is a species of ray-finned fish in the family Sternoptychidae. It occurs in deep water in the western Pacific Ocean, at depths between about 696 and 888 metres.
Polyipnus polli, commonly known as the round hatchetfish, is a species of ray-finned fish in the family Sternoptychidae. It occurs in deep water in the eastern Atlantic Ocean, at depths between about 250 and 600 metres.
Polyipnus elongatus is a species of ray-finned fish in the family Sternoptychidae. It can be found in deep water in the southwestern Pacific Ocean around Australia, at depths down to about 400 metres (1,300 ft).
Polyipnus matsubarai is a species of ray-finned fish in the genus Polyipnus. Its standard length is 9.7 cm and lives at a depth of 240 metres. They inhabit the waters around Japan, the Philippine Sea, and Hawaiian-Emperor Seamounts.
Polyipnus kiwiensis, commonly known as the kiwi hatchetfish, is a species of ray-finned fish in the genus Polyipnus. They live in the Tasman Sea off Australia and New Zealand. They are carnivores.
Polyipnus asper is a species of ray-finned fish in the genus Polyipnus. It is found in the Eastern Indian Ocean in shallow waters from 0 - 384 meters.
Polyipnus bruuni is a species of ray-finned fish in the genus Polyipnus. It is found in the Western Indian Ocean off Kenya in shallow waters from 0 - 240 meters.
Polyipnus danae is a species of ray-finned fish in the genus Polyipnus. It is found in the South China Sea in waters from 0 - 700 meters.
Polyipnus ovatus is a species of ray-finned fish in the genus Polyipnus. It is found in the South China Sea, Celebes Sea, and Java Sea with a depth range of 194 - 209 m.
Polyipnus soelae, commonly known as the soela hatchetfish, is a species of ray-finned fish in the genus Polyipnus. It is found in Indonesia with a depth range of 300 - 520 m.
Polyipnus omphus is a species of ray-finned fish in the genus Polyipnus. It is found in the Western and Central Pacific and lives below 200 m.
Polyipnus ruggeri is a species of ray-finned fish in the genus Polyipnus. It is found in the Indo-Pacific.
Polyipnus fraseri is a species of ray-finned fish in the genus Polyipnus. It is found in the Western Pacific Ocean.
Polyipnus indicus is a species of ray-finned fish in the genus Polyipnus. It is found in the Western Indian Ocean. It has a depth range of 50–500 metres (160–1,640 ft).
Polyipnus parini is a species of ray-finned fish in the genus Polyipnus found in the Western Pacific Ocean.
Polyipnus paxtoni is a species of ray-finned fish in the genus Polyipnus found in the Western Central Pacific between depths of 0 and 300 meters.
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