Rachycentron canadu, Family Rachycentridae This fish is the only species in the family, distantly related to the remoura(see sharksucker). Dark brown with black fins. Lower protruding jaw. A black lateral band runs from the nose to the caudal(tail) fin. As large as 6 ft, 150 lbs, averaging 10-50 lbs (the one in the photo was 23 1/2 lbs). Ranges Mass., USA to Argentina, from coastal waters to ocean--common around sea buoys and other stationary floating objects.