GOBIIDAE Acentrogobius multifasciatus, 3.4 cm SL (photo by Ukkrit Satapoomin) Acentrogobius multifasciatus (Herre, 1927) Belly-lined Goby D VI+I, 8-9; A I, 9-10; P1 16-17; LR 25-27; PDS 0. Body moderately elongate and compressed. Head slightly compressed; jaws subequal; gill opening not extending anteriorly to a vertical through posterior margin of preopercle; tongue truncate. Pelvic fins united medially; frenum present. Scales ctenoid, excluding those on side of nape, pectoral base and breast cycloid; cheek and operculum naked. Sensory canals and pores present on head; longitudinal sensory-papillae rows on cheek; uniserial transverse sensory-papillae row just behind chin. Color: a series of ca. 5 midlateral dusky blotches on body; head and body scattered with numerous minute bright blue spots (when alive or fresh); female with 5-7 transverse black lines on side of belly. Size: 5.0 cm SL. Distribution: Andaman Sea and West Pacific. Remarks: found in mangrove areas and shallow protected bays with soft muddy bottoms.