Arrowtooth eel may refer to several species of cutthroat eels:
The blackfin sorcerer is a species of saltwater eel in the family Nettastomatidae of the order Anguilliformes. It is found only in the Atlantic Ocean and the Mediterranean Sea.
Macrocephenchelys is a genus of eels in the family Congridae.
Gavialiceps is a genus of eels in the pike conger family, Muraenesocidae.
Nettastoma is a genus of eels in the duckbill eel family Nettastomatidae.
Neenchelys is a genus of snake eels native to the Indian Ocean and the western Pacific Ocean.All species of Neenchelys have two rather than three preopercular pores, a significant character among many species of ophichthids
Dysomma is a genus of eels in the cutthroat eel family Synaphobranchidae.
The Rubbernose conger is an eel in the family Congridae. It was described by Johnson T. F. Chen and Herman Ting-Chen Weng in 1967, originally under the genus Rhynchoconger. It is a marine, tropical eel which is known from the western Pacific Ocean, including Taiwan and Australia. It dwells at a depth range of 280 to 440 metres. Males can reach a maximum total length of 36.7 centimetres (1.20 ft).
Gavialiceps taiwanensis is an eel in the family Muraenesocidae. It was described by Johnson T. F. Chen and Herman Ting-Chen Weng in 1967, originally under the genus Chlopsis. It is a marine, deep water-dwelling eel which is known from the northwestern Pacific Ocean, including Taiwan and Okinawa, Japan. It dwells at a depth range of 600 to 750 metres. Males can reach a maximum total length of 75.7 centimetres (29.8 in).
Neenchelys cheni is an eel in the family Ophichthidae. It was described by Johnson T. F. Chen and Herman Ting-Chen Weng in 1967, originally under the genus Myrophis. It is a marine, temperate water-dwelling eel which is known from Taiwan, in the northwestern Pacific Ocean. Males can reach a maximum standard length of 35 centimetres (14 in).
Dysomma anguillare, the shortbelly eel, stout moray, mustard eel, or arrowtooth eel, is an eel in the family Synaphobranchidae. It was described by Keppel Harcourt Barnard in 1923. It is a marine, tropical eel which is known from the western Atlantic Ocean and Indo-Western Pacific, including the United States, Venezuela, South Africa, Zanzibar, and Japan. It dwells at a depth range of 30 to 270 metres, and inhabits muddy sediments in coastal waters and large rivermouths. Males can reach a maximum total length of 52 centimetres (20 in).
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 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.
