Ethelwynn Trewavas was an ichthyologist at the British Museum of Natural History. She was known for her work on the families Cichlidae and Sciaenidae. She worked with Charles Tate Regan, another ichthyologist and taxonomist.
Rhynchoconger is a genus of eels in the family Congridae.
Ariosoma bauchotae is an eel in the family Congridae. It was described by Christine Karrer in 1983. It is a marine, deep water-dwelling eel which is known from waters northwest of Madagascar, in the western Indian Ocean. It is known to dwell at a depth range of 308–314 metres.
The Gilbert's garden eel, also known as the Gilbert's conger and the sharpnose conger, is an eel in the family Congridae. It was described by James Douglas Ogilby in 1898, originally under the genus Congrellus. It is a tropical, marine eel which is known from the eastern central and southeastern Pacific Ocean, including the Gulf of California, Costa Rica, El Salvador, Ecuador, Guatemala, Mexico, Honduras, Nicaragua, Panama, and Colombia. It is a benthic and nocturnal species, and inhabits sand flats in reefs, bays and coves at a depth range of 1–100 metres. It burrows into sand during the day and emerges to forage during the night. Males can reach a maximum total length of 27 centimetres.
Ariosoma meeki is an eel in the family Congridae. It was described by David Starr Jordan and John Otterbein Snyder in 1900, originally under the genus Congrellus. It is a subtropical, marine eel which is known from Japan and the Peng-hu Islands, in the northwestern Pacific Ocean. Males are known to reach a maximum total length of 53 centimetres.
The silver eel, also known as the Melliss's conger, is an eel in the family Congridae. It was described by Albert Günther in 1870. It is a rare tropical, marine eel which is known solely from St. Helena, in the southeastern Atlantic Ocean. It is known to dwell at a maximum depth of 67 meters. Males can reach a maximum total length of 42.8 centimetres.
The tropical conger, also known as the Scheele's conger, is an eel in the family Congridae. It was described by Pehr Hugo Strömman in 1896, originally under the genus Leptocephalus. It is a tropical, marine eel which is known from the Indo-Pacific, including Natal and Mozambique. It inhabits reefs in lagoons, and is known to dwell at a depth of 9 metres. Males can reach a maximum total length of 20 centimetres (7.9 in).
Ariosoma sereti is an eel in the family Congridae. It was described by Emma Stanislavovna Karmovskaya in 2004. It is a marine, deep water-dwelling eel which is known from the Marquesas Islands, in the eastern central Pacific Ocean. It is known to dwell at a depth range of 95–370 metres. Females can reach a maximum total length of 26.5 centimetres.
The Bullish conger is an eel in the family Congridae. It was described by David G. Smith and Robert H. Kanazawa in 1977, originally under the genus Rhechias. It is a marine, deep water-dwelling eel which is known from the Gulf of Mexico to the Amazon, in the western Atlantic Ocean. It dwells at a depth range of 366–475 meters. Males can reach a maximum total length of 39.5 centimeters.
Gnathophis bathytopos, the blackgut conger, is an eel in the family Congridae. It was described by David G. Smith and Robert H. Kanazawa in 1977. It is a marine, deep water-dwelling eel which is known from the Straits of Florida, USA, and the southeastern Gulf of Mexico, in the western Atlantic Ocean. It dwells at a depth range of 180–370 meters. Males can reach a maximum total length of 35 cm.
Gnathophis grahami, or Graham's conger, is an eel in the family Congridae. It was described by Emma Stanislavovna Karmovskaya and John Richard Paxton in 2000. It is a subtropical, marine eel which is known from New South Wales, Australia, in the southwestern Pacific Ocean. It dwells at a depth range of 50–350 metres.
Gnathophis longicauda, the little conger, little conger eel or silver conger, is an eel in the family Congridae. It was described by Edward Pierson Ramsay and James Douglas Ogilby in 1888, originally under the genus Congromuraena. It is a marine, temperate water-dwelling eel which is endemic to Australia, in the Indo-West Pacific. It dwells at a depth range of 2–99 metres, and inhabits the continental shelf and slope.
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).
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 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).
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).
Gorgasia cotroneii is an eel in the family Congridae. It was described by Umberto D'Ancona in 1928, originally under the genus Leptocephalus. It is a marine, tropical eel which is known from the Red Sea, in the western Indian Ocean.
Rhynchoconger smithi is an eel in the family Congridae.
