The flatnose xenocongrid eel, flat-nosed xenocongrid eel, or flat-nosed conger eel, Chilorhinus platyrhynchus, is an eel in the family Chlopsidae. It was described by John Roxborough Norman in 1922, originally under the genus Brachyconger. It is a tropical marine eel which is known from the Pacific Ocean. It typically dwells at depths from 5 to 25 m, and leads a benthic lifestyle. Males can reach a maximum standard length of 17.8 cm.
The froghead eel is an eel in the family Colocongridae. It was described by Alfred William Alcock in 1889. It is a marine, deep-water dwelling eel which is known from the Indo-west Pacific, including East Africa, Madagascar, and southern Japan. It dwells at a depth range of 300–1134 metres. Males can reach a maximum total length of 50 centimetres.
Bathymyrus echinorhynchus is an eel in the family Congridae. It was described by Alfred William Alcock in 1889. It is a tropical, marine eel which is known from the Arabian Sea, in the northern and western Indian Ocean.
Acromycter alcocki is an eel in the family Congridae. It was described by Charles Henry Gilbert and Frank Cramer in 1897, originally under the genus Promyllantor. It is a marine, deep water-dwelling eel which is known from Hawaii, in the eastern central Pacific Ocean. It dwells at a depth range of 388–640 metres. Males can reach a maximum total length of 25.3 centimetres.
Acromycter nezumi is an eel in the family Congridae. It was described by Hirotoshi Asano in 1958, originally under the genus Promyllantor. It is a marine, temperate water-dwelling eel which is known from Japan, in the northwestern Pacific Ocean. Males can reach a maximum total length of 40 centimetres.
Bathycongrus macrocercus is an eel in the family Congridae. It was described by Alfred William Alcock in 1894, originally under the genus Congromuraena. It is a marine, deep water-dwelling eel which is known from the Andaman Islands, in the eastern Indian Ocean.
Bathycongrus nasicus is an eel in the family Congridae. It was described by Alfred William Alcock in 1894, originally under the genus Congromuraena. It is a marine, deep water-dwelling eel which is known from the Indian Ocean, including the Arabian Sea, the Bay of Bengal, and the Gulf of Aden. It dwells at a depth range of 230–1040 metres.
Gnathophis musteliceps is an eel in the family Congridae. It was described by Alfred William Alcock in 1894, originally under the genus Congromuraena. It is a marine, deep water-dwelling eel which is known from the Bay of Bengal, in the western Indian Ocean. It dwells at a depth range of 265–457 metres.
Gnathophis nystromi is an eel in the family Congridae. It was described by David Starr Jordan and John Otterbein Snyder in 1901, originally under the genus Leptocephalus. It contains two subspecies, Gnathophis nystromi nystromi, and Gnathophis nystromi ginanago, which was described by Hirotoshi Asano in 1958, originally under the genus Rhynchocymba.
Rhynchoconger guppyi is an eel in the family Congridae. It was described by John Roxborough Norman in 1925, originally under the genus Congromuraena. It is a marine, tropical eel which is known from the western central Atlantic Ocean, including the Gulf of Mexico, the Caribbean, northern South America and southern Brazil. It dwells at a depth range of 137 to 458 metres, and inhabits the continental slope. Males can reach a maximum total length of 95 centimetres (37 in).
Rhynchoconger squaliceps is an eel in the family Congridae. It was described by Alfred William Alcock in 1894, originally under the genus Congromuraena. It is a marine, tropical eel which is known from the Bay of Bengal, in the western Indian Ocean. It is known to dwell at a depth of 234 metres (768 ft).
Xenomystax trucidans is an eel in the family Congridae. It was described by Alfred William Alcock in 1894. It is a marine, deep water-dwelling eel which is known from Maldives and Laccadives, in the western Indian Ocean. It is known to dwell at a depth of 1,316 metres (4,318 ft), but is more commonly found at a depth range of 400 to 800 metres. Males can reach a maximum total length of 64.5 centimetres (25.4 in).
Gavialiceps taeniola is an eel in the family Muraenesocidae. It was described by Alfred William Alcock in 1889. It is a marine, deep water-dwelling eel which is known from the Indian Ocean, including the Arabian Sea, Oman, and the Bay of Bengal. It dwells at a depth range of 350 to 1,046 metres. Males can reach a maximum total length of 64.7 centimetres (25.5 in).
Nettenchelys taylori is an eel in the family Nettastomatidae. It was described by Alfred William Alcock in 1898. It is a marine, deep-water dwelling eel which is known from a single specimen from India, in the western Indian Ocean. From the specimen it is known to dwell at a depth of 786 metres (2,579 ft), and females are known to reach a total length of 53.3 centimetres (21.0 in).
The Sooty sand-eel is an eel in the family Ophichthidae. It was described by Raymond Carroll Osburn and John Treadwell Nichols in 1916. It is a marine, tropical eel which is known from the eastern central Pacific Ocean, including Costa Rica and Mexico. It is known to dwell at a maximum depth of 20 metres (66 ft), and inhabits sand sediments. Males can reach a maximum total length of 77 centimetres (30 in).
The goldspotted eel, also known as the goldspotted snake eel or the dark-spotted snake eel, is an eel in the family Ophichthidae. It was described by Charles Alexandre Lesueur in 1825, originally under the genus Muraenophis. It is a marine, tropical eel which is known from the western and eastern Atlantic Ocean, including Bermuda, southern Florida, USA; the Bahamas, Santa Catarina, and Brazil. It dwells at a maximum depth of 15 metres (49 ft), and inhabits rocky and coral reefs. Males can reach a maximum total length of 110 centimetres (3.6 ft).
The Antillian snake eel is an eel in the family Ophichthidae. It was described by John Roxborough Norman in 1922. It is a marine, deep water-dwelling eel which is known from the western central Atlantic Ocean, including Cuba, Puerto Rico, Trinidad-Tobago, and Venezuela. It is known to dwell at a maximum depth of 300 meters, and inhabits coastal waters. Males can reach a maximum total length of 107 centimeters, but more commonly reach a TL of 70 cm.
The Misol snake eel is an eel in the family Ophichthidae. It was described by Albert Günther in 1872, originally under the genus Ophichthys. It is a marine, tropical eel which is known from the western central Pacific Ocean.
Dysomma bucephalus is an eel in the family Synaphobranchidae. It was described by Alfred William Alcock in 1889. It is a tropical, marine eel which is known from the Indo-Pacific. It is known to dwell at a maximum depth of 353 metres.
Dysomma muciparus is an eel in the family Synaphobranchidae. It was described by Alfred William Alcock in 1891. It is a tropical, marine eel which is known from the Indo-Pacific. It is known to dwell at a depth range of 439–505 metres.
