Pompano dolphinfish have a lifespan of three to four years. They are often mistaken for juvenile mahi-mahi; they are somewhat smaller than their mahi-mahi cousins, never exceeding 127 cm in length. Pompano dolphinfish have compressed heads and long dorsal fins extending the entire length of their bodies. Their backs are a brilliant blue-green, and their sides are a silvery-golden color. Mature males develop a protruding forehead, but not to the same extent as male mahi-mahi. When they are removed from the water, the fish fade to a muted green-grey upon death.
Pompano dolphinfish are carnivorous, feeding on small fish and squid.
Pompano dolphinfish are popular as a game fish in the waters off South America, and are sometimes eaten as a substitute for swordfish because of their firm texture and sweet flavor.