The Colocongridae, the worm eels or short-tail eels, are a family of eels, containing a single genus, Coloconger.

Colongrids are found in tropical waters of the Atlantic, Indian, and West Pacific oceans. They are bottom-dwelling fish, living in waters from in depth. Compared with other eels, they have relatively short and stubby bodies, with blunt snouts.

Species The ten known species are:

Genus Coloconger Coloconger cadenati Kanazawa, 1961 Coloconger canina (Castle & Raju, 1975) Coloconger eximia (Castle, 1967) Coloconger giganteus (Castle, 1959) (giant leptocephalus) Coloconger japonicus Machida, 1984 Coloconger maculatus Ho, Tang & Chu, 2021 Coloconger meadi Kanazawa, 1957 Coloconger raniceps Alcock, 1889 (froghead eel) Coloconger saldanhai (Quéro, 2001) Coloconger scholesi W. L. Y. Chan, 1967 (Indo-Pacific short-tail conger)

See also List of fish families

References