10 
SECOND YADKAND MISSION. 
Largest specimen 8’5 inches in length. There is also a specimen from Balakchi, the stream 8 
there apparently flowing towards the Yarkand Diver, which goes to the east. 
14. Diptychtjs maculatus. Plate II, fig. 3. 
Dipiyclius maculatus, Steindackner, Verk, z.-b. Ges. Wien., 1866, p. 787 ; Gunther, Cat. vii., P - 
171. Day, Proc. Zool. Soc., 1S76, p. 792. 
Dijptychus severzowi, Kessler, Fisk. Turkestan, p. 17, t. iv, £. 12. 
B. iii, D. g, P. 19, Y. 9, A. B C. 19, L. 1. 80-90. 
Length of head 5 to 6, of caudal 5 to 6; height of body 7-g- to 8 in the total length. 
Eyes : diameter 4| in the young to 6 in the adult in the length of the head, lj to 2 diameter 
from the end of snout, and 1-g- apart. The greatest width of the head equals its height, oi 1 
length behind the front edge or middle of the eyes. Mouth transverse, inferior, having nu 
anterior sharp horny covering on the lower jaw. Lower labial fold interrupted in the nuc e - 
Barbels : one at each maxilla, having thick bases, and hardly so long as the eye. lee 
pharyngeal, 4, 3, 3, 4, curved at the outer extremity and pointed. Fins : the u ()1 ®f 
commences rather nearer the snout than the base of the caudal, its upper edge is straig 1 ’ 
it is as high as the body below it, its last undivided ray articulated. Pectoral not quite s^ 
long as the head ; it reaches rather above half-way to the ventral, which latter commenc^ 
on a vertical line below the last dorsal ray ; it reaches rather above half-way to the base ^ ^ 
the anal. Anal when laid flat reaches the base of the caudal ; its height is nearly r 
times the length of its base. Scales not imbricated, but scattered over the upper " . 
thirds of the body and pectoral region, in which latter locality the skin is often 
the tiled row well developed. Eree portion of the tail one-half longer than lug 1 
its base. Colours bluish, lightest interiorly, indistinctly blotched and spotted along ^ 
upper half of the body ; often a narrow, dull band along the lateral line, and a sec0 
below it. The dorsal and caudal fins much spotted in some specimens. 
The very young are destitute of scales ; they first appear along the lateral line. . 
specimen from Basgo, 11 inch long, has no barbel on the left side. There are two spec ^ _ 
from the west of Sarikol : one has an adipose lid, covering the anterior half of the left 
the other has a similar lid covering the lower half of the left eye. Brown tubercles arc ^ 
mon on some of the specimens, and do not appear to be normal. Some specimens from 
have the eye small. eC ies- 
Biptychus severzowi , from the Divers Aksai and Ottuck appears to be the above sp ^ 
Bab. Specimens were brought from Kharbu, Basgo, Snima, Leh, Tankse, and 
from waters going directly or indirectly to the Indus; from Pasrobat (9,370 fee )> ^ 
Tarbashi (11,515 feet), whence the waters go to the Yarkand Diver; also from 
Sarikol, which goes to the same river. Some specimens are also labelled as from Gn 
This fish has also been captured in other parts of Tibet, and likewise in Nepal. 
15. Labeo s index sis. Plate II, fig. 4. 
Cirrhina sinclensis, Day, Proc. As. Soc., Peng., 1872, p. 319. 
B. iii, D. 12-13, P. 18, Y. 9, A. 7, C. 19, L. 1. 43, L. tr. 8-9. 
Length of head 6a, of caudal 4 a ; height of body 5 a in the total length. Byes . ^ a ^ oU t 
5 a in the length of the head, 2 diameters from the end of the snout, and 24 apai 
