in ichthyology, a genus of fishes belonging to the order of abdominales. The generic characters are these: The teeth are in the tongue as well as the jaws; the branchiofuge membrane has eight radii or rays; the anus is near the tail; and the belly-fins consist of many rays. There are two species of argentina, viz. 1. The sphyraena has 15 rays in the fin at the anus; the air-bladder of this species is conical on both sides, and shines like silver: According to Mr Ray, false pearls are sometimes made of it. 2. The carolina has likewise 15 rays in the fin near the anus; the tail is forked, and the lateral lines are straight. It inhabits the fresh waters of Carolina.