Cutthroat eels are a family, Synaphobranchidae, of eels, the only members of the suborder Synaphobranchoidei. They are found worldwide in temperate and tropical seas.
Arrowtooth eel may refer to several species of cutthroat eels:
Dysomma is a genus of marine ray-finned fishes belonging to the family Synaphobranchidae, the cutthroat eels. These eels are found in the Atlantic, Indian and Pacific Oceans.
The Longtailed sand-eel is an eel in the family Ophichthidae. It was described by Albert Günther in 1870, originally under the genus Ophichthys. It is a marine, tropical eel, which is known from Aden to Natal, South Africa, in the western Indian Ocean. Males can reach a maximum total length of 54 centimetres (21 in).
The sharpnose sand eel is an eel in the family Ophichthidae. It was described by Keppel Harcourt Barnard in 1923, originally under the genus Sphagebranchus. It is a marine, subtropical eel which is known from Zululand and Durban in South Africa, in the western Indian Ocean. Males can reach a maximum total length of 40 centimetres (16 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).
The African spoon-nose eel is an eel in the family Ophichthidae. It was described by John Richardson in 1848. It is a tropical, marine eel which is known from the eastern Atlantic Ocean, including Mauritania and Namibia. It is known to dwell at an approximate depth of 40 metres, and inhabits lagoons and coastal waters. It leads a benthic lifestyle, burrowing into sand and mud. Males can reach a maximum total length of 140 centimetres, but more commonly reach a TL of 80 cm.
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.
Dysomma brevirostre, the pignosed arrowtooth eel or batnose eel, is an eel in the family Synaphobranchidae. It was described by Luigi Facciolà in 1887. It is a marine, deep water-dwelling eel which is known from the eastern and western Atlantic Ocean, including Madeira Island, the Gulf of Guinea, the Ligurian Sea, Italy, and Florida and Hawaii, USA. It dwells at a depth range of 200 to 1,000 metres, and inhabits soft sediments on the continental slope. Males can reach a maximum total length of 30 centimetres (12 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 dolichosomatum is an eel in the family Synaphobranchidae. It was described by Christine Karrer in 1983. It is a tropical, marine eel which is known from the Indo-Pacific. It dwells at a depth range of 550–555 metres.
Dysomma fuscoventralis is an eel in the family Synaphobranchidae. It was described by Christine Karrer and Wolfgang Klausewitz in 1982. It is a marine, deep water-dwelling eel which is endemic to the Red Sea. It dwells at a depth range of 750–1425 metres.
Dysomma goslinei is an eel in the family Synaphobranchidae. It was described by Catherine H. Robins and Charles Richard Robins in 1976. It is a tropical, marine eel which is known from the Indo-Pacific. Males can reach a maximum total length of 19.7 centimetres.
Dysomma longirostrum is an eel in the family Synaphobranchidae. It was described by Chen Yu-Yun and Michael Hin-Kiu Mok in 2001. It is a marine, temperate water-dwelling eel which is known from Taiwan, in the northwestern Pacific Ocean. It dwells at a depth range of 100–150 metres. Males can reach a maximum total length of 19.6 centimetres.
Dysomma melanurum is an eel in the family Synaphobranchidae. It was described by Johnson T. F. Chen and Herman Ting-Chen Weng in 1967. It is a subtropical, marine eel which is known from the western Pacific Ocean. Males can reach a maximum total length of 23.7 centimetres.
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.
Dysomma opisthoproctus is an eel in the family Synaphobranchidae. It was described by Chen Yu-Yun and Michael Hin-Kiu Mok in 1995. It is a subtropical, marine eel which is known only from northeastern Taiwan, in the northwestern Pacific Ocean. It is known to dwell at a maximum depth of 200 metres. Males are known to reach a total length of 42.1 centimetres.
Dysomma polycatodon is an eel in the family Synaphobranchidae. It was described by Christine Karrer in 1983. It is a tropical, marine eel which is known from the Indo-Pacific. It is known to dwell at a depth range of 170–175 metres.
Dysomma tridens is an eel in the family Synaphobranchidae. It was described by Catherine H. Robins, Eugenia Brandt Böhlke, and Charles Richard Robins in 1989. It is a tropical, marine eel which is known from off Belize, in the western central Atlantic Ocean. It is known to dwell at a maximum depth of 348 metres.
The Kaup's arrowtooth eel is an eel in the family Synaphobranchidae. It was described by James Yate Johnson in 1862. It is a marine, deep water-dwelling eel which is known from the Indo-Western Pacific and eastern and western Atlantic Ocean, including the Faroe Islands, Iceland, Cape Verde, the Western Sahara, Nigeria, Namibia, South Africa, Greenland, France, Saint Pierre and Miquelon, the United Kingdom, Ireland, the Philippines, Portugal, Spain, the Bahamas, Brazil, Canada, Cuba, Japan, Australia, Mauritania, Morocco, and Hawaii. It dwells at a depth range of 120 to 4,800 metres, most often between 400 and 2,200 metres, and inhabits the upper abyssal zone on the continental slope. It is intolerant of the temperatures of higher waters. Males can reach a maximum total length of 100 centimetres (39 in).
