The mottled eel, also known as the African mottled eel, the Indian longfin eel, the Indian mottled eel, the long-finned eel or the river eel, is a demersal, catadromous eel in the family Anguillidae. It was described by John McClelland in 1844. It is a tropical, freshwater eel which is known from East Africa, Bangladesh, Andaman Islands, Mozambique, Malawi, Sri Lanka, Sumatra, and Indonesia and recently from Madagascar. The eels spend most of their lives in freshwater at a depth range of 3–10 metres, but migrate to the Indian Ocean to breed. Males can reach a maximum total length of 121 centimetres and a maximum weight of 7,000 grams. The eels feed primarily off of benthic crustaceans, mollusks, finfish and worms.
Rhynchoconger is a genus of eels in the family Congridae.
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.
Bathymyrus simus is an eel in the family Congridae. It was described by J.L.B. Smith in 1965. It is a tropical, marine eel which inhabits moderately deep water. It is known from the Penghu Islands and Vietnam, in the western Pacific Ocean. Males can reach a maximum total length of 19.5 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.
Promyllantor purpureus is an eel in the family Congridae. It was described by Alfred William Alcock in 1890. It is a marine, deep water-dwelling eel which is known from the Indo-Western Pacific, including India and Indonesia. It is known to dwell at a depth range of 1,120 to 2,250 metres.
Rhynchoconger ectenurus, known commonly as the longnose conger in Australia, is an eel in the family Congridae. It was described by David Starr Jordan in Robert Earl Richardson in 1909, originally under the genus Leptocephalus. It is a marine, subtropical eel which is known from the western Pacific Ocean, including northern Australia, Japan, the Korean Peninsula, and the eastern China Sea. It inhabits soft sediments on the continental shelf and slope. Males can reach a maximum total length of 65 centimetres.
The yellow conger is an eel in the family Congridae. It was described by George Brown Goode and Tarleton Hoffman Bean in 1896. It is a marine, tropical eel which is known from the Gulf of Mexico and the mouth of the Amazon River, in the western Atlantic Ocean. It dwells at a depth range of 26 to 183 meters, and inhabits soft sediments. Males can reach a maximum total length of 150 centimeters (59 in), but more commonly reach a TL of 30 centimeters (12 in).
The whiptail conger, also known as the conger eel in Cuba, is an eel in the family Congridae. It was described by Isaac Ginsburg in 1951, originally under the genus Congrina. It is a marine, deep water-dwelling eel which is known from the western Atlantic Ocean, including the United States in the northern Gulf of Mexico and northern South America. It is known to dwell at a depth of 203 meters (666 ft). Males can reach a maximum total length of 61 centimeters (24 in).
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).
The bignose conger is an eel in the family Congridae. It was described by David Starr Jordan and Charles Harvey Bollman in 1890. It is a tropical, marine eel which is known from the eastern central and southeastern Pacific Ocean, including Chile, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, and Peru. It dwells at a depth range of 25–90 metres. Males can reach a maximum total length of 40 centimetres, but more commonly reach a TL of 30 cm.
Rhynchoconger trewavasae is an eel in the family Congridae. It was described by Adam Ben-Tuvia in 1993. It is a marine, deep water-dwelling eel which is known from the western Indian Ocean, including the Gulf of Aqaba and possibly the Gulf of Suez. A single specimen was recorded in the Mediterranean Sea from Israel in 1993. It dwells at a depth range of 300 to 500 metres, and swims in a zigzag motion near the bottom. Males can reach a maximum total length of 57 centimetres (22 in), but more commonly reach a TL of 45 centimetres (18 in).
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).
The Oriental worm-eel, also known as the Oriental snake eel, the Oriental sand-eel or the finny sand-eel, is an eel in the family Ophichthidae. It was described by John McClelland in 1844, originally under the genus Dalophis. It is a tropical, marine and freshwater-dwelling eel which is known from the Indo-Western Pacific, including Somalia, South Africa, India, Papua New Guinea, Tahiti, French Polynesia, Indonesia, Oman, Palau, New Caledonia, the Philippines, Sri Lanka, Seychelles, and Vanuatu. It dwells at a depth range of 0 to 3 metres, and forms burrows in sand and mud sediments in estuaries, rivers, and inshore turbid waters. Males can reach a maximum total length of 36 centimetres (14 in), but more commonly reach a TL of 25 centimetres (9.8 in).
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.
