SCIENTIFIC RESULTS 
OF 
THE SECOND YARKAND MISSION. 
ICHTHYOLOGY. 
By FRANCIS DAY, F.L.S., F.Z.S. 
rpHE foHowing descriptions refer to the entire collection of fishes obtained during the 
expedition (except, so far as I know, two specimens'). With them I have compared 
some types of Steindachner’s excellent paper on Dr. Stoliczka’s “Fishes of Tibet” (Verh. z.-b. 
Gres. Wien, 1866), which specimens were given me by Dr. Stoliczka. 
Mr. Hume, C.B., has since then obtained a few more skins of fishes from those regions 
through the exertions of Dr. Scully. These have likewise been forwarded to me ; and one 
a Ppears to be a very aberrant form of Vlychoharbus. 
Order PHYSOSTOMI. 
Family — SIL JJRIDJE 
1. EXOSTOMA ST0LICZK2E. Plate I, fig. 1. 
Day, Proc. Zool. Soc. 1876, p. 782. 
D. A, P. T V, y. h A. 6, C. 15. 
Length of head from 4 in the young 2 to 5§, of caudal 8, height of body 7 3 in the total 
° n gth. Eyes minute, situated in the middle of the length of the head; the width of the 
ln terorbital space equals half that of the snout, or the distance between the eye and hind 
2 mj 1086 ^ W0 s P ec imens are in the British Museum. 
fjg^^e 10 r emarkable difference in the comparative length of the head to that of the total length is shown in the following 
3 specimens 4 inches in length. Head 4 to 4$ in the total length. 
4 „ 4'2 to 4-5 „ „ 4£ to 5J „ 
5 ,, 5*0 to 5*7 ,, ,) 5 to 5s 
3 „ 6*0 to 6*6 „ „ 5| to 5| ,, 
2 „ 7 » 51 to 5i „ 
