Origin of first dorsal fin before or slightly before the free rear ends of the pectoral fins. Origin of second dorsal fin above midbase of anal fin or just in front of its insertion. Grey to grey-brown with white ventral surface. Tolerant to different salinities, and can be found in estuaries and river mouths. During winter months they migrate into deeper waters.
Sharpnose sharks can form big schools of same sex and size.
Average size between 2.5 to 3 ft, maximum total length about 4 ft. Normally 4 to 6 pups per litter, although can vary from 1 to 7. Pups are born in unprotected nursery grounds. Fast growth, reaching maturity after 3 to 4 years with a size of 2 to 2.5 ft. Somewhat falcate first dorsal fin with an origin over or behind the insertion of the pectoral fins.