rhombeus, Chaetodon Bloch [M. E.] & Schneider [J. G.] 1801:235 [M. E. Blochii, Systema Ichthyologiae; ref. 471] No locality. Holotype (unique): ZMB. Subjectively invalid; secondarily preoccupied by Scomber rhombeus Forsskål 1775 in Psettus. The name Psettus sebae Cuvier 1829 serves as a replacement name. •Synonym of Monodactylus sebae (Cuvier 1829). 2°Homonym. Current status: Synonym of Monodactylus sebae (Cuvier 1829). Monodactylidae. Habitat: freshwater, brackish, marine.