SCORPAENIDAE Scorpaenodes guamensis, 6.9 cm SL (from North Sulawesi, Indonesia; photo by Seishi Kimura) Scorpaenodes guamensis (Quoy and Gaimard, 1824) Guam Scorpionfish D XIII, 8-9; A III, 4-5; P1 18-19; P2 I, 5; LR 40-45. Body oblong, compressed. Interorbital and coronal spines absent. Three suborbital spines. Dorsalfin spines short, longest spine length 2.5-3.1 in head length. Color: body color variable, mottled with reddish to grayish. A large dark spot on opercle; no dark spot at rear of spinous portion of dorsal fin or subopercle; no dark triangular mark at pectoral-fin base. Size: maximum length 12.5 cm SL. Distribution: widely distributed in the Indo-Pacific, from east coast of Africa to the Society Islands, and southern Japan south to Queensland, Australia. Remarks: common in lagoons and outer reef slope to depths of 30 m.