Description.

The black alligator reaches the 2.5 m normal adult size, although larger specimens are occasionally. The muzzle is long and narrow, even with the mouth closed can be seen several teeth.The coloring is blackish or very dark. The belly is yellowish and has no bone covering on the contrary, the scales of the back have osteoderms well marked.The juveniles show a pattern of stripes black on yellow or brown, which gradually darkens.The legs are strong and short, the fingers are later joined by a membrane that facilitates swimming, although the overall driving force from the muscular tail.