DASYATIDAE Himantura walga, 12.9 cm DW (photo by Seishi Kimura) Himantura walga, 16.0 cm DW (from Selangor, Malaysia; photo by Seishi Kimura) Himantura walga (Müller and Henle, 1841) Dwarf Whipray Disc almost oval, anterior margins somewhat concave with pointed snout, posterior margin slightly rounded; disc width subequal to length. Tail slender, whip-like, longer than disc width, with usually two venomous spines (stings); tail without ventral finfold and lateral keel. A median band of small flattened denticles dorsally on disc and tail from snout to base of spines; 4-6 enlarged thorns, longer than a half of eye diameter, dorsally on tail before spines. Color: brown or grayish brown dorsally, white ventrally. Size: maximum length about 40 cm, maximum disc width about 18 cm. Distribution: eastern Indian and West Pacific Oceans, from Thailand to Indonesia. Remarks: usually found in inshore waters with muddy or muddy-sand bottoms.