Art illustration - Oceans & Seas - Eel: { Anguilliformes } They have elongated body resembling a snake, with both marine species and river; usually they have bare skin without scales and when they are cycloid type embedded in the skin. have jaws with well-formed teeth throughout the mouth, they do not have pelvic fins and the skeleton of said fins, first appear in the fossil record during the Middle Cretaceous. The dorsal fin and anal usually attached to the caudal fin, which is small radii.
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