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Show 796 MR. F. DAY ON THE FISHES OF YARKAND. [Dec. 5, Colours : greyish along the back, becoming lighter beneath, marbled all over with dark green or black spots or bands. Dorsal, caudal, and sometimes outer pectoral rays barred. In specimens from Sirikol the snout is rather more pointed than described above. Hab. Leh or Ladak (11,538 feet); Sneema, Lukung stream (14,130 feet); and Chagra (15,000 feet), all being waters directly or indirectly going to the Indus. Also Yarkand (3923 feet) and Sirikol, where the waters go to the easterly or Yarkand river; and Aktash (12,600 feet), which is on the Aksi, a tributary of the Oxus. I have a specimen in my collection given me by Dr. Stoliczka ; he procured it, along with those sent to Steindachner, from Lake Tsu-mureri in Ilupshu (Tibet), on his first visit to that country. 16. NEMACHEILUS YARKANDENSIS, sp. nov. B.iv., D. f, P. 17, V. 8, A. \, C. 15. Length of head 4^, of caudal 6, height of body 6~ in the total length. Eyes: diameter 6 to 7 in the length of the head, 2| diameters from the end of snout, and 2 to 3 apart. Snout rather elevated in the adult: upper surface of the head nearly flat; its greatest width equals its height or its length excluding the snout. Mouth inferior, horseshoe-shaped ; lips smooth, lower labial fold interrupted in the middle and destitute of lobes. Barbels six ; the maxillary ones reach (in adults) the angle of the preopercle. Fins: the dorsal commences midway between the front edge of the eye and the base of the caudal fin ; its upper edge is straight and oblique ; its height rather exceeds that of the body below it, and is one fourth more than the extent of its base. Pectoral as long as the head excluding the snout, and reaching two thirds of the distance to the ventral. Ventral commences below the first dorsal ray, is shorter than the pectoral, and reaches two thirds of the distance to the anal. Anal twice as high as wide at its base. Caudal emarginate, its outer rays being a little produced. Free portion of the tail at its commencement nearly equals its length in the adult, but is less in the young. Scales absent. Air-vessel in two portions, enclosed in bone. Colours: greyish, having iu some specimens numerous fine blackish or dark spots on the body. In some there is a silvery lateral band. Hab. Yarkand, Pas Robat, Yankihissar, and Kashgar, all from waters in connexion with the Yarkand and Yankihissar or Great Easterly River. 17. NEMACHEILUS TENUIS, sp. nov. B.iv., D.A p. 13, V. 8, A. |C. 17- Length of head 5^ to 5§, of caudal 7\, height of body 9 to 10 in the total length. Eyes: diameter 5| in the length of head, 2\ diameters from the end of snout, and'l apart. Snout rather compressed aud overhanging the mouth ; the greatest width of the head equals its height or its length excluding the snout. In some speci- |