| Monomitopus | |
|---|---|
 | |
| M. agassizii | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Ophidiiformes |
| Family: | Ophidiidae |
| Subfamily: | Neobythitinae |
| Genus: | Monomitopus Alcock, 1890 |
| Type species | |
| Sirembo nigripinnis Alcock 1889 [1] | |
Monomitopus is a genus of cusk-eels. [2] [1] They are oviparous. [3]
Analysis of stable oxygen isotope composition of otoliths has shown that Monomitopus pallidus and Monomitopus kumae undergo an ontogenetic habitat shift, spending their early life pelagically in shallower waters, before descending to the deep-sea floor where they stay for rest of their lives. [3] The larvae of these species have been reported to coil tightly and drift in the pelagic until settlement [4] .
There are currently 15 recognized species in this genus: [5]
Ophidiiformes is an order of ray-finned fish that includes the cusk-eels, pearlfishes, viviparous brotulas, and others. Members of this order have small heads and long slender bodies. They have either smooth scales or no scales, a long dorsal fin and an anal fin that typically runs into the caudal fin. They mostly come from the tropics and subtropics, and live in both freshwater and marine habitats, including abyssal depths. They have adopted a range of feeding methods and lifestyles, including parasitism. The majority are egg-laying, but some are viviparous.
The cusk-eel family, Ophidiidae, is a group of marine bony fishes in the Ophidiiformes order. 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.
Gnathophis is a genus of marine congrid eels.
Coryphaenoides is a genus of rattails which is found in all oceans of the world. They are found in deep waters and C. yaquinae, recorded to 7,012 m (23,005 ft), is the only member in the family known from the hadal zone.
Saccogaster is a genus of viviparous brotulas. They are found in the western Atlantic and Indo-Pacific.
Abyssobrotula galatheae is a species of cusk eel in the family Ophidiidae. It is the deepest-living fish known; one specimen, trawled from a depth of 8,370 m (27,460 ft) in the Puerto Rico Trench in 1970, holds the record for the deepest fish ever captured. Although generally recognized, some have suggested that the record-breaking individual might have been caught with a non-closing net and therefore perhaps caught shallower.
Barathronus is a genus of deep-sea fish that are placed in the family Aphyonidae or family Bythitidae (brotulas), depending on the source.
Bellottia is a genus of viviparous brotulas which is found in the subtropical waters of the North Atlantic, the Mediterranean Sea and the Indo-Pacific.
Diplacanthopoma is a genus of viviparous brotulas.
Hephthocara is a small genus of Indo-Pacific viviparous brotula.
Pyramodon is a genus of pearlfishes, with these currently recognized species:
Bassozetus is a genus of cusk-eels found in Atlantic, Indian and Pacific Ocean.
Dicrolene is a genus of cusk-eels.
Glyptophidium is a genus of cusk-eels.
Holcomycteronus is a genus of cusk-eels. It includes Holcomycteronus profundissimus, long thought to be the deepest-living fish in the world's oceans.
Luciobrotula is a genus of cusk-eels. The larvae have an ovoid body, elongate anterior dorsal-fin ray, and long trailing fleshy filament
Neobythites is a genus of cusk-eels.
Porogadus is a genus of cusk-eels.
Brotula barbata, commonly known as the goatsbeard brotula, is a species of cusk-eel in the genus Brotula. It lives in the Indo-Pacific, in depths of up to 300 meters. It is dark brown with a submarginal black band and narrow white border on the dorsal and anal fins versus greenish to orange brown with orange-bordered dorsal and anal fins, and it grows up to be around 100 centimeters. It has a carnivorous diet, and it is oviparous.
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.
 | This Ophidiidae -related article is a stub. You can help Wikipedia by expanding it. |