''Heteroconger congroides'' is an

eel Eels are ray-finned fish belonging to the order Anguilliformes (), which consists of eight suborders, 19 families, 111 genera, and about 800 species. Eels undergo considerable development from the early larval stage to the eventual adult stage ...

in the family Congridae (conger/garden eels).''Heteroconger congroides''
at www.fishbase.org. It was described by

Umberto D'Ancona Umberto D’Ancona (9 May 1896 – 24 August 1964) was an Italian biologist. He attended secondary school in Fiume and later enrolled as a student in the Faculty of Natural Sciences at the University of Budapest. During World War I he interrupted ...

in 1928, originally under the genus ''

Leptocephalus Leptocephalus (meaning "slim head") is the flat and transparent larva of the eel, marine eels, and other members of the superorder Elopomorpha. This is one of the most diverse groups of teleosts, containing 801 species in 4 orders, 24 families, ...

''.D'Ancona, U., 1928

ef. 15917 EF or ef may refer to: Arts and entertainment * Ef (band), a post-rock band from Sweden * '' Ef: A Fairy Tale of the Two.'', a Japanese adult visual novel series by Minori, or its anime adaptations Businesses and organizations * Eagle Forum, a ...

''Murenoidi (Apodes) del Mar Rosso e del Golfo di Aden. Materiali raccolti dal Prof. Luigi Sanzo nella Campagna della R. N. "Ammiraglio Magnaghi" 1923-24.'' Memoria, Comitato Talassografico Italiano No. 146: 1-146, Pls. 1-5. It is a

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

, deepwater-dwelling eel which is known from the

Kamaran Islands Kamaran Island ( ar, كمران ''Kamarān'') is the largest Yemeni island in the Red Sea. The island is long and wide and is strategically located at the southern end of the Red Sea. It is a "shelf island" located in the shallow waters of the ...

Yemen Yemen (; ar, ٱلْيَمَن, al-Yaman), officially the Republic of Yemen,, ) is a country in Western Asia. It is situated on the southern end of the Arabian Peninsula, and borders Saudi Arabia to the Saudi Arabia–Yemen border, north and ...

, in the

Red Sea The Red Sea ( ar, البحر الأحمر - بحر القلزم, translit=Modern: al-Baḥr al-ʾAḥmar, Medieval: Baḥr al-Qulzum; or ; Coptic: ⲫⲓⲟⲙ ⲛ̀ϩⲁϩ ''Phiom Enhah'' or ⲫⲓⲟⲙ ⲛ̀ϣⲁⲣⲓ ''Phiom ǹšari''; T ...

, in the western

Indian Ocean The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by th ...

. It is known only from larvae, which are known from a depth of .

References

congroides Fish described in 1928 {{Anguilliformes-stub