GOBIIDAE Yongeichthys criniger, NSMT-P 66008, 4.2 cm SL Yongeichthys criniger (Valenciennes, 1837) Shadow goby D VI - I, 9; A I, 9; P1 17 - 18; LR 25 - 28; PDS 0. Body moderately elongate, compressed. Head slightly compressed; jaws subequal; gill opening not extending anteriorly to a vertical through preopercular margin. Pelvic fins united medially. Scales ctenoid, excepting those on breast and pectoral fin base cycloid; head naked. Sensory canals and pores present on head; longitudinal pattern of sensory-papillae rows on cheek, some rows multiple; aggregation of sensory papillae just behind chin. Color: body pale gray or pale brown, with two dusky saddles and three large dusky midlateral spots. Size: 10.0 cm SL. Distribution: eastern Indian Ocean, Andaman Sea and Indonesia. Remarks: found in tidal estuaries and protected bays with sandy-mud bottoms. Poisonous.