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



and, until further evidence on this point is forthcoming, the 

 Kashmir and Bulandshahr specimens are best regarded as local 

 races, or perhaps merely phases, of A. cancriformis. The descrip- 

 tions of this species which I have been able to consult contain 

 many discrepancies and it may well be that distinct races exist in 

 different parts of Europe and Asia. 



Cavalier ^ has recently published a brief note on the occur- 

 rence of A. cancriformis at a height of 10,000 ft. on the Bingol 

 Dagh in Armenia and remarks that " as Crustacea at such heights 

 are rarely discovered I think it worthy of record that these are 

 practically identical with the common European species, though 

 this is only in accordance with the results of Grube on Apus from 

 ly. Baikal and of Gerstaecker on the Siberian Branchipus ] but there 

 are some slight differences in the appendages." Grube's paper is 

 cited as Jahres-Bericht schl. GeselL, 1872, p. 53, and although this 

 does indeed refer to an account by that author of the ly. Baikal 

 fauna, I have been unable to find therein any mention of Apus ; 

 nor in any other work which I have examined have I found 

 Cavalier's citation repeated. 



Previous records of Apus from Eastern Asia do not appear to 

 be numerous ; the following list contains all that I have been able 

 to discover : — 



Aptis hiinalayanus, Packard, Ann. Mag. Nat. Hist. (4), viii, 1871, 



P- 334- 



I have only been able to consult Packard's preliminary account 

 of this species. It is stated to be closely allied to A. 

 cancriformis and the distinctions noted do not suffice to 

 separate it from that species : the range of variation in 

 the European form, as judged by a comparison of several 

 descriptions, appears to cover all the differential features 

 mentioned by Packard. '^ Considered in the light of this 

 paper only, the specimens from Kashmir and Bulandshahr 

 agree with A . cancriformis rather than A . himalayanus. 



Packard records. two specimens " collected from a stagnant 

 pool in a jungle four days after a shower of rain had 

 fallen. For five months previous to this rain there had 

 been no rain upon the earth. Himalaya Mountains, 

 North India, near where the Sutlege river debouches into 

 the plains — ^ April, 1870." 



Apus dukianus, Day, Proc. Zool. Soc. London, 1880, p. 392 



(text-fig.). 



The specimens from which this species was described were 

 found in April, 1877, in a pond near Kelat in Afghan- 

 istan. The great length of the body, coupled with the 



1 Ann. Mag. Nat. Hist. (7), viii, p. 160 (1901)- 



5 Some error seems to have crept into the measurements which Packard 

 gives, for the length of the carina of the carapace plus the pre-carinal length is 

 far greater than the total length of the shield. 



