Cynoponticus savanna,, the Guayana pike-conger, pike-headed eel or sapphire eel,Common names of Cynoponticus savanna at www.fishbase.org. is an eel in the family Muraenesocidae (pike congers).Cynoponticus savanna at www.fishbase.org. It was described by Edward Nathaniel Bancroft in 1831, originally under the genus Conger.Bancroft, E. N., 1831 (31 Oct.) [ref. 15966] Specimens were exhibited of several fishes, lately received from Dr. Bancroft of Kingston, Jamaica, Corr. Memb. Z. S. Proceedings of the Committee of Science and Correspondence of the Zoological Society of London 1830-31 (pt 1): 134-135. It is a marine, tropical eel which is known from the western Atlantic Ocean, including Central America, the Caribbean and Brazil. It dwells at a maximum depth of , and inhabits muddy substrates in bays and estuaries. Males can reach a maximum total length of , but more commonly reach a TL of .

The Guayana pike-conger's diet consists of zoobenthos.Food items reported for Cynoponticus savanna at www.fishbase.org. It is of minor commercial use to fisheries, and is marketed fresh.

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