GOBIIDAE Gobiodon quinquestrigatus, 2.6 cm SL (photo by Ukkrit Satapoomin) Gobiodon quinquestrigatus (Valenciennes, 1837) Fivelined Coralgoby D VI+I, 10-11; A I, 8-9; P1 18-20; LR 0; PDS 0. Body ovate, well compressed. Head compressed; snout rounded; jaws subeuqal; gill opening narrow, restricted to pectoral-fin base; tongue narrow, with rounded anterior margin. First dorsal fin near rounded (rather than triangular); pelvic fins small, united medially; frenum present. No scales on head and body. Sensory canals and pores present on head; reduced longitudinal pattern of sensory papillae on cheek; a pair of sensory papillae just behind chin. Color: head reddish brown, with 5 vertical blue lines; body and fins dark reddish brown or blackish. Size: 3.0 cm SL. Distribution: West Pacific. Remarks: found amongst branches of acroporid corals of the genus Acropora.