GOBIIDAE Amblygobius stethophthalmus, 5.1 cm SL (photo by Ukkrit Satapoomin) Amblygobius stethophthalmus (Bleeker, 1851) Head-stripe Goby D VI + I, 14-15; A I, 15-16; P1 20; LR 66-74; PDS 28. Body moderately elongate and compressed. Head slightly compressed; snout rounded, protruding beyond jaws; gill opening not extending anteriorly to a vertical line through posterior margin of preopercle; tongue rounded or near truncate. No elongate and/or filamentous dorsal-fin spines; pelvic fins united medially; frenum present. Scales on body ctenoid, exclusive of occipital region, nape, pelvicfin base, belly and breast with cycloid scales; dorsal part of operculum with cycloid scales, other areas of head naked. Sensory canals and pores present on head; a series of short transverse rows of sensory papillae below eye; a pair of short longitudinal sensorypapillae rows just behind chin. Color: broad black stripe from tip of snout through eye to anterior part of body; middle of operculum with faint broad dusky stripe, meeting posteriorly with black spot on pectoral-fin base; many close-set small black spots (may be tinged with red) on top of head. Size: 8.5 cm SL. Distribution: West Pacific and Andaman Sea. Remarks: found in protected bays, lagoons and estuaries.