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Genus: Echidna, Moray Eels

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D origin before gill opening
tail ~ 1/2 TL
teeth short, very blunt



Snout short and jaws short, broad; front nostril tubular, rear one a small hole above front of eye; teeth: no canines, some molar-like, at least on roof of mouth; gill opening a small slit at mid-flank; length of tail very slightly greater than ½ TL; dorsal and anal fins skin covered, but evident; dorsal origin before gill opening, anal origin immediately after anus; lateral line pores absent except for 2 pores above and before gill opening.

Echidna is a circumtropical genus of about 11 species. One endemic and one Indo-Pacific species occur in the tropical eastern Pacific.