8 



SECOND YARKAND MISSION. 



does not reach quite so far as the ventral, which latter fin arises under the last few dorsal 

 rays and reaches two-thirds of the distance to the base of the anal. The anal, when laid flat, 

 reaches the hase of the caudal, its base is 2J in its height. Scales : the tiled row small, not 

 one-third of the diameter of the eye. Colours : silvery, darkest along the back and upper 

 half of body, where most of the scales have black margins, thus causing small reticulations 

 in the colour. Upper surface of the head spotted with black ; some dark spots on the dorsal 

 fin, and sometimes a few bight ones on the caudal. 



Sab. Head-waters of Indus, Hanle in Tibet, and Chiliscomo, near Dras. 



11. PTYCHOBARBTJS LATICEPS. Plate III, fig. 1. 



Day, Proc. Zool. Soc. 1876. p. 789. 

 B. iii, D. |, P. 18, V. 9, A. ?, C. 20, L. 1. 145. 



Length of head 4, of caudal 9|, height of body 7 in the total length. Eyes : diameter 

 12 in the length of head, 2 J diameters from the end of snout, and also apart. Mouth anterior, 

 with the lower jaw somewhat the longer ; the depth of the cleft of the mouth equals half the 

 width of the gape. Upper surface of the head broad, its width being nearly twice its height. 

 No lower labial fold under the mandible. Barbels : a maxillary pair as long as the eyes. 

 Fins : dorsal arises slightly nearer the base of the caudal than the end of the snout ; its 

 last undivided ray weak, articulated at its extremity, and not serrated. Pectoral two-fifths 

 as long as the head. Ventral arises below the anterior dorsal rays. Caudal forked. Scales 

 are scarcely imbricated, but cover the entire body ; those forming the tiled sheath along 

 the base of the anal fin are two-thirds of the diameter of the eye. Colours silvery 

 superiorly, becoming dull white beneath ; a few blackish spots along the back. 



This interesting skin has unfortunately had its anal fin removed, whilst the pharyngeal 

 teeth have not been preserved. The specimen is 52 inches in length. 



It may be considered that as this fish differs from P. conirostris in the form of its mouth 

 and snout, also in the position of the ventral fin, it might form a new genus ; but we have 

 yet much to learn of the mountain barbels ; perhaps a more extensive acquaintance will 

 diminish the number of genera into which they are at present subdivided. 



Hab. Kashghar (4,043 feet elevation), the river from which place eventually joins the 

 Yarkand River. 



12. PTYCHOBABBUS LONGICEPS. Plate IV, fig. 2. 



Day, Proc. Zool. Soc., 1876, p. 790. 

 B. iii, D. |, P. 19, V. 12, A. f , C. 20, L. 1, 112, L. tr. 31. 



Length of head 3f to 4, of caudal 7 to 7i, height of body 5| to 6 in the total length 

 Eyes : diameter 7 to 9 in the length of head, 1^ diameter from the end of snout, and 2 apart. 

 Mouth anterior, cleft oblique, commencing superiorly opposite the upper margin of the eye. 

 Lower jaw somewhat the longer ; the maxilla reaches to below the middle of the eye. The 

 greatest width of the head rather exceeds its height, and equals half its length. Interorbital 

 space flat. No lower labial fold under the mandibles. Barbels : a maxillary pair half as 

 long as the eye. Fins : the dorsal commences midway between the hind edge of the 

 preopercle and the base of the caudal fin. Its last undivided ray is osseous, of moderate 



