GOBIIDAE Amblyeleotris downingi, 7.9 cm SL (photo by Ukkrit Satapoomin) Amblyeleotris downingi (photo by Niphon Phongsuwan) Amblyeleotris downingi Randall, 1994 Downing's Shrimp Goby D VI+I, 16; A I, 17; P1 18-20; LR 116-128; PDS 0. Body elongate and compressed. Head slightly compressed; lower jaw slightly protruding beyond upper jaw; gill opening extending anteriorly beyond a vertical line through posterior margin of preopercle; tongue rounded or near truncate. Pelvic fins united medially; frenum present. Scales ctenoid posteriorly, cycloid anteriorly; head naked. Sensory canals and pores present on head; a series of short transverse rows of sensory papillae below eye; a pair of sensory papillae just behind chin. Color: four faint broad dark brown bars on body, as well as a weak similar-colored short vertical line may be at middle of each interspace; dorsal part of operculum tinged with dark brown; a dusky spot (as large as pupil) above dorsal end of gill opening; a faint dusky spot on first dorsal fin. Size: 14.0 cm SL. Distribution: Arabian Gulf, Indian Ocean and Andaman Sea. Remarks: found on sandy or silty sand-rubble bottom; symbiotically associates with alpheid shrimps.