igoS.] 



Records of the Indian Museum. 



311 



The natives of the valley say that the large fish migrate down 

 into the Tsang-po in the autumn and return in spring. The first 

 fish of any size which I obtained in spring were all Schizopygopsis 

 stoliczkcB or Piychobarbus conirostris. The other species appeared 

 later. 



In the Gyantse valley, as elsewhere in Tibet, there is an 

 elaborate system of irrigation channels branching off from the 

 rivers. During autumn these abound with young fish, and as in 

 November most of these channels are allowed to run dry, a great 

 loss of young life must result. 



Two of the best collecting places in the valley are Te-ring Gompa 

 and High Hill Gompa, two monasteries situated on the hill faces 

 several thousand feet above the valle5\ A spring arises near 

 each, and Turbellarians, Amphipods, Oligochaetes, Rotifers and 

 frogs abound among the moss, algae and stones. 



Through the courtesy of the Director General of Observatories 

 I am able to give the following table showing the maximum and 

 minimum temperatures recorded each month during 1907 in 

 Gyantse. 



Gyantse, 1907. 





^ 

















u 



u 





u 







13 





.d 











tn 



d 



V 



.0 



g 



fl 







3 

 a 









u 



Vi 



>. 





>;, 





P4 



3 



^ 





S 





cd 



<U 





Oi 





a 



a 



3 





y 







y 



y 





1— > 



fe 



§ 



<1 



% 



1— > 



»— > 



< 



C/3 







^ 



« 



> 



Maximum tem- 



43-3 



39-5 



46-3 



57-2 



65-6 



73-0 



74-8 



74-5 



73-4 



66-4 



we 



43-4 



S9-3 



perature in de- 





























grees Fahr. 





























Minimum tem- 



8-7 



8-8 



ir8 



27-6 



32-9 



427 



47-6 



44*4 



43-1 



32-3 



12-3 



4'0 



26-c; 



perature. 



























OBSERVATIONS ON SPECIMENS OF HYDRA FROM 

 TIBET, WITH NOTES ON THE DISTRIBUTION OF 

 THE GENUS IN ASIA. 



By N. Annandale, D.Sc, Superintendent , Indian Museum. 



Hydra fusca^Timn, ' - 



? H. rhgetica, Asper, Zool. Anz,, 1880, p. 205. 



Several specimens from among weeds in the Rham-Tso (lake) 

 at an altitude of about 15,000 feet; taken in August, 1907 (Capt. 

 F. H. Stewart). 



