PTERELEOTRIDAE Parioglossus philippinus, 2.8 cm SL (male; photo by Ukkrit Satapoomin) Parioglossus philippinus, 2.5 cm SL (female; photo by Ukkrit Satapoomin) Parioglossus philippinus (Herre, 1945) Philippine Dartfish D VI + I, 16-19; A I, 16-19; P1 17-20; LR 61-81; PDS 0. Body elongate, compressed. Head compressed; lower jaw slightly projecting anteriorly beyond upper jaw; gill opening narrow, extending ventrally to just below ventral margin of base of pectoral fin. No elongate spines on first dorsal fin; pelvic fins separated; caudal fin truncate or slightly emarginate. Scales on body small cycloid, embedded and non-imbricate; head naked. Sensory canals and pores present on head; reduced transverse pattern of sensorypapillae rows on cheek. Color: head and body gray, with a vague midlateral dusky stripe posteriorly, continuous to ovoid black spot at middle of caudal-fin base. Size: 4.0 cm SL. Distribution: Indo-West Pacific. Remarks: usually found on coral reefs n coastal areas; free swimming species, forming aggregations mixed with some congeners.