Pejerrey rasposo

Membras martinica has an elongated body with a rather pointed snout and oblique mouth. The color is pale yellow to off-white with silvery stripe along the flanks and a white swimbladder which can be seen through its flesh. There are two dorsal fins, there are only spines in the first dorsal fin. The pectoral fins are situated high on its flanks. The back has parallel colored rows. This species has scales which are rough to the touch. The caudal fin has a dusky margin. The maximum recorded total length of 12.5 centimetres (4.9 in).

Membras martinica occurs in the western central Atlantic as far north as New York south to Veracruz in Mexico. It has also been recorded in rivers, for example in the Hudson River as far upstream as Peekskill, New York and far upstream in the St. John's River, Florida as well as from a number of Mexican river systems.