Tetragonurus

Key to the species of Tetragonurus View in CoL (adapted from Anderson 2022)

1a. LL scales 72–95 to keels on peduncle; pelvic-fin origin beneath front third of pectoral fin; vertebrae 39–51.............. 2

1b. LL scales 97–114 to keels on peduncle; pelvic-fin origin beneath middle of pectoral fin; vertebrae 52–58......... T. cuvieri View in CoL

2a. Dorsal fin 9–12 spines; LL scales 72–80; vertebrae 39–43; snout longer than eye diameter (in adults).......... T. pacificus View in CoL

2b. Dorsal fin 13–17 spines; LL scales 83–95; vertebrae 44–51; snout subequal to eye diameter................. T. atlanticus View in CoL