| Pycnocraspedum | |
|---|---|
 | |
| Pycnocraspedum squamipinne | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Ophidiiformes |
| Family: | Ophidiidae |
| Subfamily: | Neobythitinae |
| Genus: | Pycnocraspedum Alcock, 1889 |
| Type species | |
| Pycnocraspedum squamipinne Alcock, 1889 [1] | |
There are currently five recognized species in this genus: [2]
Kiyomatsu Matsubara was a Japanese marine biologist, ichthyologist, and herpetologist.
Albert Eide Parr was a Norwegian-born, American marine biologist, zoologist and oceanographer. He was the director of the American Museum of Natural History from 1942 to 1959. Parrosaurus missouriensis, a species of plant-eating dinosaur, is named after him.
Alfred William Alcock was a British physician, naturalist, and carcinologist.
The cusk-eel family, Ophidiidae, is a group of marine bony fishes in the order Ophidiiformes. The scientific name is from the Greek ophis meaning "snake", and refers to their eel-like appearance. True eels, however, diverged from other ray-finned fish during the Jurassic, while cusk-eels are part of the Percomorpha clade, along with tuna, perch, seahorses, and others. Unlike true eels of the order Anguilliformes, cusk-eels have ventral fins that are developed into a forked barbel-like organ below the mouth. In the true eels by contrast, the ventral fins are never well-developed and usually missing entirely.
Fiordichthys is a genus of viviparous brotula native to the southwest Pacific Ocean.
Lucifuga is a genus of viviparous brotulas. Most of the species are native to caves and sinkholes in Cuba and the Bahamas; L. inopinata from deep water off the Galápagos Islands is the only exception. The four species rated by the IUCN are all considered vulnerable. The largest species in the genus reaches about 15 cm (5.9 in) in length.
Sciadonus is a genus of blind cusk eels.
Barathrodemus is a genus of cusk-eels found in deep waters.
Bassogigas is a genus of cusk eel from the subfamily Neobythitinae, part of the family Ophidiidae. The generic name "Bassogigas" comes from a combination of two Latin words: bassus, which means "deep" and gigas which means "giant". The species are found in the Indo-Pacific and western Atlantic Ocean.
Bathyonus is a genus of cusk-eels.
Benthocometes is a genus of cusk-eels.
Genypterus is a genus of cusk-eels.
Glyptophidium is a genus of cusk-eels.
Hoplobrotula is a genus of cusk-eels.
Lamprogrammus is a genus of cusk-eels.
Lepophidium is a genus of cusk-eels.
Ophidion is a genus of cusk-eels.
Otophidium is a genus of cusk-eels, part of the subfamily Ophidiinae in the family Ophidiidae. They are found in the western Atlantic and eastern Pacific.
Parophidion is a genus of cusk-eels found in the Atlantic Ocean and the Mediterranean Sea.
Porogadus is a genus of cusk-eels.
Sirembo is a genus of cusk-eels of the subfamily Neobythitinae, family Ophidiidae, which are found in the Indian and Pacific Oceans. The species in this genus have a rather robust body with the dorsal fin originating over vertebrae 1–5. The head and bod are completely covered in scales, they have large eyes which are almost equal in diameter to the length of snout, the pelvic fins have two rays which are joined together within an area of tough skin, They have a short spine on the operculum which does not extend to the posterior edge of the head. Their coloration is variable but almost all species have black spots or eyespots on the dorsal fin, sometimes both, while the middle part of the anal fin frequently has a black band. The body and/or head are marked with diagonal or horizontal dark stripes or horizontal rows of quite large dusky spots.
Spectrunculus is a genus of cusk-eels found in the Atlantic and Pacific Oceans.
Neobythitinae is a subfamily of cusk eel from the family Ophidiidae. They are mostly fishes of deeper waters, occurring from the continental shelf down to as deep as 8,370 metres (27,460 ft) at the bottom of the Puerto Rico trench where the deepest known fish, Abyssobrotula galatheae, has been taken.
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