GOBIIDAE Pseudogobius javanicus, 1.9 cm SL (photo by Koichi Shibukawa) Pseudogobius javanicus (Bleeker, 1856) Javanese Fat-nose Goby D VI + I, 7; A I, 7; P1 14-16; LR 25-28; PDS 7-8. Body moderately elongate, compressed. Head slightly depressed; snout rounded, projecting beyond upper jaw; gill opening not extending anteriorly to a vertical through preopercular margin. Pelvic fins united medially; frenum present. Scales ctenoid, excepting those on predorsal area, pectoral base, belly and operclum cycloid. Sensory canals and pores present on head; longitudinal pattern of sensory-papillae rows on cheek; a pair of short sensory papillae just behind chin. Color: head and body pale gray, with numerous dusky spots and a diagonal dusky bar below first dorsal fin; black spot at posterior part of first dorsal fin; rays of second dorsal and caudal fins with several dusky dots; two black spots on caudal-fin base. Size: 3.4 cm SL. Distribution: Indo-West Pacific. Remarks: found in tidal estuaries, especially mangrove areas with sandy-mud bottoms.