Histiobranchus is a genus of eels in the family Synaphobranchidae.
The Polynesian longfinned eel, also known as the Pacific long-finned eel, is an eel in the family Anguillidae. It was described by Johann Jakob Kaup in 1856. It is a tropical eel found in freshwaters in the Pacific, including Sulawesi, Indonesia; the Society Islands, and Pitcairn. The eels spend most of their lives in freshwater, but migrate to the ocean to breed. Males can reach a maximum total length of 100 centimetres, while females can reach a maximum TL of 165 centimetres and a maximum weight of 9,000 grams.
The African longfin eel, also known simply as the longfin eel, is an eel in the family Anguillidae. It was described by Wilhelm Peters in 1852, originally under the genus Muraena. It is a tropical eel known from freshwaters in southern Kenya, Cape Agulhas, Madagascar, and New Caledonia. The eels spend most of their lives in freshwaters far inland, but migrate to the Western Indian Ocean to breed. Males can reach a maximum total length of 150 centimetres; females can reach a maximum standard length of 120 centimetres and a maximum weight of 5,000 grams. The eels can live for about 20 years. Juveniles and adults are known to feed off of carcasses, crabs, and bony fish.
The Pacific shortfinned eel, also known as the Pacific shortfinned freshwater eel, the short-finned eel, and the South Pacific eel, is an eel in the family Anguillidae. It was described by Albert Günther in 1871. It is a tropical, freshwater eel which is known from western New Guinea, Queensland, Australia, the Society Islands, and possibly South Africa. The eels spend most of their lives in freshwater, but migrate to the Pacific Ocean to breed. Males can reach a maximum total length of 110 centimetres, but more commonly reach a TL of around 60 cm. The Pacific shortfinned eel is most similar to Anguilla australis, and Anguilla bicolor, but can be distinguished by the number of vertebrae.
The Mauritanian shortface eel is an eel in the family Heterenchelyidae. It was described by Jacques Pellegrin in 1913. It is a tropical, marine eel which is known from the eastern Atlantic Ocean, where it is distributed from Morocco to Guinea. It typically dwells at a depth range of 30–1000 metres, habituating muddy substrates on the African continental shelf. Males can reach a maximum total length of 84 centimetres.
The longtailed shortfaced eel is an eel in the family Heterenchelyidae. It was described by Charles Tate Regan in 1912, originally under the genus Heterenchelys. It is a tropical, marine eel which is known from coastal waters ranging from Sierra Leone to Angola, in the eastern Atlantic Ocean. Males can reach a maximum total length of 80 centimetres.
The shorttailed shortfaced eel is an eel in the family Heterenchelyidae. It was described by Charles Tate Regan in 1912, originally under the genus Heterenchelys. It is a tropical, marine eel which is known from Mauritania to Angola, in the eastern Atlantic Ocean. It typically dwells at a depth range of 40–150 metres. Males can reach a maximum total length of 50.5 centimetres.
Gnathophis mystax, the thinlip conger or blacktailed conger, is an eel in the family Congridae. It was described by François Étienne Delaroche in 1809, originally under the genus Muraena. It is a subtropical, marine eel which is known from the eastern Atlantic Ocean, including southern Portugal, the Mediterranean, and Morocco. It dwells at a depth range of 75–800 metres, and inhabits mud and sand on the continental slope. Males can reach a maximum total length of 60 centimetres, but more commonly reach a TL of 35 centimetres.
The slender duckbill eel is an eel in the family Nettastomatidae. It was described by Charles Tate Regan in 1915. It is a marine, deep water-dwelling eel which is known from the Gulf of Guinea, in the eastern Atlantic Ocean. It inhabits the continental shelf and slope. Males can reach a maximum total length of 55.5 centimetres (21.9 in).
The shortfinned worm eel is an eel in the family Ophichthidae. It was described by William John Macleay in 1881, originally under the genus Muraenichthys. It is a marine, temperate water-dwelling eel which is known from Australia, in the southwestern Pacific Ocean. It forms large colonies which inhabit burrows in soft sediments. Males can reach a maximum total length of 40 centimetres (16 in).
The Indo-Pacific slender worm-eel is an eel in the family Ophichthidae. It was described by Pieter Bleeker in 1857. It is a marine, tropical eel which is known from the Indo-Pacific, including the Red Sea, East Africa, the Line Islands, the Society Islands, Johnston Island, Japan, Rapa Iti, Micronesia, and the southern Great Barrier Reef. It forms burrows in inshore sediments of loose gravel and sand. Males can reach a maximum total length of 38 centimetres (15 in).
The sharpsnout snake eel is an eel in the family Ophichthidae. It was described by Max Carl Wilhelm Weber in 1913. It is a marine, tropical eel which is known from the Indo-Western Pacific, including East Africa, the Marshall Islands, and the Hawaiian Islands. It dwells at a depth range of 10 to 25 metres, and lives in congregations in confined regions of sand sediments. Males can reach a maximum total length of 40 centimetres (16 in).
The Siboga snake eel is an eel from the family Ophichthidae. It was described by Max Carl Wilhelm Weber in 1913, originally under the genus Callechelys. It is a marine, tropical eel which is found off the south coast of Timor, Indonesia, in the western central Pacific Ocean. Males can reach a maximum total length of 23.7 centimetres (9.3 in).
The finny snake eel is an eel in the family Ophichthidae. It was described by Martin Vahl in 1794. It is a marine, tropical eel which is known from the Indian Ocean, including southern India. It is known to inhabit inshore areas of turbid waters and estuaries, though not specifically for breeding purposes. Males can reach a maximum total length of 30 centimetres, but more commonly reach a TL of 20 cm.
The Finned worm eel is an eel in the family Ophichthidae. It was described by Coenraad Jacob Temminck and Hermann Schlegel in 1846. It is a marine, tropical eel which is known from the Indo-Pacific, including East Africa, the Society Islands, and southern Japan. It is known to dwell in reefs. It is the only worm eel in its region which possesses pectoral fins. Males can reach a maximum total length of 60 centimetres.
The Molo snake eel is an eel in the family Ophichthidae. It was described by Max Carl Wilhelm Weber in 1913. It is a marine, tropical eel which is known from Indonesia, in the Indo-Pacific. It dwells at a depth range of 69 to 91 metres, and inhabits sandy sediments. Males can reach a maximum total length of 11.5 centimetres (4.5 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 plain snake eel is an eel in the family Ophichthidae. It was described by Charles Tate Regan in 1908. It is a marine, subtropical eel which is known from Algoa Bay, South Africa, in the southeastern Atlantic Ocean. Males can reach a maximum total length of 30 centimetres (12 in).
The speckled snake eel is an eel in the family Ophichthidae. It was described by John Roxborough Norman in 1939, originally under the genus Ophichthus. It is a marine, tropical eel which is known from the western Indian Ocean, including the Gulf of Aden and Somalia. It dwells at a depth range of 11 to 322 metres. Males can reach a maximum total length of 62.5 centimetres (24.6 in), while females can reach a maximum TL of 75.2 centimetres (29.6 in).
Avocettina acuticeps, the southern snipe eel or southern fintail snipe eel, is an eel in the family Nemichthyidae. It was described by Charles Tate Regan in 1916, originally under the genus Leptocephalus. It is a marine, deep water-dwelling eel which is known from throughout the southern regions of the ocean, with the exception of the eastern Pacific. It is known to dwell at a maximum depth of 2,000 metres (6,600 ft). Males can reach a maximum total length of 77 centimetres (30 in).
