Sciades guatemalensis ( Günther, 1864)

Arius guatemalensis ^ZBK Günther, 1864: 145. Type locality: Guatemala. Syntypes: BMHN 1853.1.11.6.

Arius caerulescens ^ZBK Günther, 1864: 149. Type locality: Huamucahal, Guatemala. Syntypes: BMNH 1864.1.26.208-209.

Galeichthys azureus ^ZBK Jordan & Williams in Jordan, 1895: 398, pl. 27. Type locality: estuary at Mazatlan, Sinaloa, western Mexico. Holotype: SU 11575.

Distribution: Western Central America.

Countries: Mexico, Guatemala, El Salvador and Nicaragua.

Habitat: Marine and brackish waters.

Maximum size: 370 mm TL.

Material examined: UMMZ 178475 (2 al, 197-274 mm TL) (1 c&s), Mexico, Guerrero, laguna Coyuca, ca 10 mi NW of Acapulco - 3 mi NW of military airport on SW side of the laguna, Pacific dr.