Notarius planiceps (Steindachner, 1877)

Arius planiceps ^ZBK Steindachner, 1877: 576 [26], pl. 4. Type locality: Altata, Panama (Pacific) . Syntypes: NMW 48194-99, ZMUC 839.

Distribution: Western Central America.

Countries: Mexico, Guatemala, El Salvador, Nicaragua, Costa Rica, Panama.

Habitat: Marine and brackish waters.

Maximum size: 600 mm TL.

Material examined: FMNH 19068 (3 al, 208-244 mm TL) (1 c&s), Panama, canal zone, Panama Bay, Balboa; USNM 79433 (2 al, 215-258 mm TL), Panama, Panama Bay, Balboa .