| Poromitra oscitans | |
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| Drawing by Dr Tony Ayling | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Beryciformes |
| Family: | Melamphaidae |
| Genus: | Poromitra |
| Species: | P. oscitans |
| Binomial name | |
| Poromitra oscitans Ebeling, 1975 | |
Poromitra oscitans, the yawning, is a fish of the family Melamphaidae, found in tropical and subtropical waters of the indo-Pacific region. It grows to a length of 8.2cm SL, and lives at a depth of 643-5320m.
Ridgeheads, also known as bigscales, are a family of small, deep-sea stephanoberyciform fish. The family contains approximately 37 species in five genera; their distribution is worldwide, but ridgeheads are absent from the Arctic Ocean and Mediterranean Sea. Although the family is one of the most widespread and plentiful of deep-sea families, none of its members are of interest to commercial fishery.
The New Zealand topknot, Notoclinus fenestratus, is a triplefin of the genus Notoclinus, found around the North Island of New Zealand in reef areas of broken rock and brown seaweed.
The New Zealand black angelfish or the black scalyfin, Parma alboscapularis, is a damselfish of the family Pomacentridae, found around northeastern New Zealand to depths of a few metres, over shallow rocky reef areas. Its length is between 24 and 28 cm.
Nemadactylus macropterus, commonly known as the tarakihi or jackass morwong, is a morwong of the genus Nemadactylus, found off southern Australia, the Atlantic coast of South America, and New Zealand to depths of about 400 m, on all types of bottoms. Its length is between 30 and 60 cm. They were first found on the south-western coast of the North Islands in 1963-72. It is ranked second on the total of New Zealand wet fish but very little is known about them.
The New Zealand rockfish, Acanthoclinus littoreus, is a roundhead of the genus Acanthoclinus, found only in New Zealand from shallow depths to 15 m. Their length is between 5 and 15 cm.
The notchheaded marblefish, Aplodactylus etheridgii, is a marblefish of the genus Aplodactylus, found between North Cape and East Cape in the North Island of New Zealand, in depths down to 40 m. Their lengths are between 35 and 40 cm.
The alert pigfish, Alertichthys blacki, is a pigfish, the only species in the genus Alertichthys, found around New Zealand at depths between 100 and 600 m. It is between 15 and 20 cm in length.
The black flounder is a flatfish of the genus Rhombosolea, found around New Zealand in shallow enclosed waters and coastal freshwater lakes. Its adult length ranges from 20 to 45 cm.
The blue grenadier is a merluccid hake of the family Merlucciidae found around southern Australia and New Zealand, as well as off both the Atlantic and Pacific coasts of South America from Peru to Brazil at depths of between 10 and 1,000 m. It feeds in midwater on small squids, crustaceans, and fish. Its length is between 60 and 120 cm. It is a slender, silvery fish similar in appearance to the gemfish. The meat of the fish is white and almost always sold in fillets; culinarily it is considered a whitefish.
The New Zealand sole or common sole, Peltorhamphus novaezeelandiae, is a righteye flounder of the genus Peltorhamphus, found around New Zealand in shallow enclosed waters less than 100 m in depth. Their length is from 25 to 45 cm.
Sprattus is a genus of small oily fish of the family Clupeidae. They are more usually known by their common name, sprats. There are five species in the genus.
The longnose spurdog is a dogfish shark of the genus Squalus, found over continental shelves in all oceans, at depths of between 15 and 800 metres. They reach one metre in length.
The blue warehou or common warehou is a medusafish of the family Centrolophidae found off southern Australia and around New Zealand, at depths of between 5m and 400m. Its length is up to about 75 cm.
The scaly gurnard, Lepidotrigla brachyoptera, is a searobin of the family Triglidae, found around New Zealand including the Kermadec Islands, at depths of between 35 and 300 m. Its length is up to 15 cm.
The spotted gurnard, Pterygotrigla picta, is a searobin of the family Triglidae, found in the Indo-Pacific oceans at depths between 200 and 500 m. Its length is up to 35 cm.
The red gurnard perch or jock stewart, Helicolenus percoides, is a rockfish of the family Sebastidae, found on the continental shelves of Australia and New Zealand at depths of between 20 and 750 m. Its length is up to 47 cm. Also called Ocean Perch, Coral Cod, Coral Perch, Reef Ocean Perch, Red Perch, Red Rock Perch, Red Gurnard Scorpionfish, and Sea Perch.
The giant stargazer, Kathetostoma giganteum, is a stargazer of the family Uranoscopidae, found on the continental shelf around New Zealand and endemic to that area.
The New Zealand flathead, Bembrops morelandi, is a duckbill fish of the family Percophidae, subfamily Bembropinae, found only around New Zealand, at depths between 365 and 395 m. Their length is up to 20 cm.
Poromitra crassiceps, commonly called the crested bigscale is a species of deep sea fish in the ridgehead family.
Poromitra is a genus of ridgeheads.
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