The black bullhead (Ameiurus melas) is a species of bullhead catfish. Like other bullhead catfish, it has the ability to thrive in waters that are low in oxygen, brackish, turbid and/or very warm. It also has barbels located near its mouth, a broad head, spiny fins and no scales. It can be identified from other bullheads as the barbels are black, and it has a tan crescent around the tail. Average adult weights are in the one to two-pound range, and almost never as large as five pounds. It has an average length of 6-10 inches, making it smaller than other bullheads. It is typically black or dark brown on the dorsal side of its body and yellow or white on the ventral side.