go Records of the Indian Museum. [Vol. VI, 



lake ; these large fish are therefore never able to migrate below 

 14,600 feet. 



Gymnocypris waddellii, Regan : young forms. 



Six specimens from a stream running into the Rham Tso near 

 Chalu Bridge, obtained by Capt. Kennedy, I. M.S., on 30th July, 

 IQ09. They are from the same stream as the two large specimens. 



Br. iii. D. ii. 8. x\n. ii. 6. P. i. 19. V. i. 9. 



General shape. — This is an elegant fish which does not offer 

 the ground-feeding appearance of its low-born parents and of many 

 oi its relatives. This is due chiefly to the fact that there is no 

 humping of the back in front of the dorsal fin. The mouth is prac- 

 tically terminal, being only very slightly overhung by the upper 

 lip and is above the level of the lower margin of the orbit. The 

 maximum height of the body is situated at the commencement 

 of the dorsal fin. The length of body in front of the commence- 

 ment of the dorsal fin is to that behind this point as i is to IT4. 

 The postdorsal height is to the maximum height as i is to i'35. 

 The height of the tail is to the maximum height as i is to 2-87. 

 The length of the first spine of the dorsal fin is to that of the 

 second as i is to i^ ; the second is serrated in its lower two- 

 thirds, pointed above. 



Gill-rakers of first bar number, inner row 19 — 20, outer row 12. 



Colour. — Black or blackish grey with moderate-sized darker 

 brownish spots most marked along lateral line ; belly silvery. 

 Dorsal and caudal fins blackish grey ; pectorals, ventrals and anals 

 not pigmented. 



The largest specimen contains fairly well-developed testes. 



III. Gymnocypris hohsonii, sp. nov. 



(Plate iii, fig. 6.) 



A single specimen in the Indian Museum (No. y) presented by 



Mr. H. B. Hobson of the Imperial Chinese Customs Service. 



According to the entry in the register it was obtained from the 



eastern confines of Tibet. 



It measures 145 mm. in length including the caudal fin, 120 

 without the caudal. 



Br. iii. D. ii. 8. A. ii. 5. P. i. 15. V. i. 18. 



The mouth is subterminal ; the lower jaw slightly shorter than 

 the upper. The anterior end of the mouth is slightly above the 

 level of the lower margin of the orbit. The maximum height of 

 the body is attained about the level of the anterior end of the dor- 

 sal fin. The distance from the anterior end of the dorsal to the 

 snout is considerably less than from the same point to the base of 

 the caudal (i : i'23). The second dorsal spine is strongly toothed 

 in its lower half. 



The animal is of delicate build : the fin-rays fine. 



