220 Records of the Indian Museum. [Vol. VI 



It seems probable that B. orientalis only occurs at great alti- 

 tudes in the eastern part of its distributional range ; the Pamir 

 specimens were found at an elevation of about 13,000 ft. 



Pristiccphalus priscus, von Daday. 



1910. Pristicephalus priscus, von Daday, Ann. Sci. Nat. Zool. (9), 

 xi, p. 224, fig. 29, a-k. 



This species is known only from the Western Himalayas. It 

 has been found on the following occasions : — 



1. Suka Tal,^ Kumaon, ca. 7,000 ft., Oct. 3rd. 1906, and May, 



1909. N. Annandale, R. E. Lloyd. 



2. Bhowali Bazar, Kumaon, ca. 5,500 ft., May, 1909. A. D, 



Imms, R. E. Lloyd. 



3. Phagu, Simla Hills, ca. 9,000 ft., May 3rd, 1907. N. An- 



nandale. 



4. Th.eog, Simla Hills, ca. 8,000 ft., April 27th and May 3rd, 



1907. N. Annandale. 



vSuka Tal and the ponds at Phagu and Theog were found quite 

 dr}' on subsequent occasions. 



The Phagu specimens, living in a pool of rain-water at a height 

 of 9,000 ft. were considerably smaller than those obtained 1,000 ft. 

 below in the village pond at Theog. At the latter place on the 

 27th of May, Dr. Annandale found both males and females in 

 abundance; but five days later, although males were still numerous, 

 not a single female could be discovered. 



In May of the present 3^ear P. priscus appeared to be wholly 

 absent from small pools in the neighbourhood of the Kumaon 

 lakes. 



Chirocephalus bobrinskii, Alcock. 



1898. Branchipus {Chirocephalus) bobrinskii, Alcock, Rep. Nat. 



Hist. Results Pamir Boundary Comm. , p. 17, pi. iii, figs, i, la. 

 1910. Chirocephalus altaicus, von Daday, Ann. Sci. Nat. Zool. 



(9), xi, p. 191, fig. 22, a-i. 

 1910. Chirocephalus bobrinskii, von Daday, ibid., p. 212. 



It seems that two species of Anostraca were found by Alcock 

 in the Chakmaktin Lake, Little Pamir, and were separated into two 

 bottles ; but by an unfortunate mistake both were labelled Branchi- 

 pus bobrinskii. One bottle labelled ' types ' is in the Indian Mu- 

 seum; the other v/as sent to von Daday who remarks that ''par 

 un hasard inexplicable au lieu de Chirocephalus, j 'ai re9U Branchi- 

 necta orientalis, G, O. Sars." 



An examination of the types shows that Alcock' s species is un- 

 questionably the same as that which von Daday has recently des- 

 cribed under the name of C. altaicus from two males found in a 



' The specimens which von Daday records from Naini Tal were in reality 

 found in this temporary sheet of water. 



