LABRIDAE Stethojulis trilineata, 9.9 cm SL (terminal phase; photo by Ukkrit Satapoomin) Stethojulis trilineata, 5.2 cm SL (initial phase; from North Sulawesi, Indonesia; photo by Seishi Kimura) Stethojulis trilineata (Bloch and Schneider, 1801) Three-ribbon Wrasse D IX, 11; A III, 11; P1 12-13; LLp 25; GR 25-28. Body moderately deep. Dorsal profile of head convex; jaws and mouth small; teeth small and incisiform, none notably enlarged. Pectoral fins set high on body. Lateral line abruptly curved below posterior portion of dorsal-fin base; head scaleless; scales on thorax about half the size of those on body. Color: initial phase greenish to brownish grey on upper half of head and upper twothirds of body with numerous whitish dots; white ventrally with small black spot on each body scale; a salmon pink stripe between upper dark and lower white zones. Terminal males green on upper two-thirds of body, shading to orange-yellow anteriorly and on head, abruptly greenish white ventrally; 4 dark edged longitudinal blue lines on head and body, 3 passing posteriorly and 1 ending above pectoral-fin base; dorsal fin bright red, caudal fin yellow. Size: maximum length about 15 cm. Distribution: Eastern Indian Ocean and western Pacific, from Maldives and Andaman Sea to Samoa. Remarks: inhabits shallow coral reefs to about 15 m depth. Feeds on demersal planktonic crustaceans and small benthic invertebrates.