DISTRIBUTION OF INDIAN FRESHWATER FISHES. 567 



We can deduce the following results as to the distribution of 

 the 29 genera present in the island of Ceylon. 



Present on the mainland 

 of the Ceylonese 

 subregion. 



Present in Hindustan. 



Present elsewhere. 



28 



26 



1 China ; 1 Madagascar ; 

 but also mainland. 



The Malabar fish-fauna is intimately related to that of Ceylon, 

 and (but to a diminishing extent) with the southern portion of 

 the Coromaudel coast, as some species extend their range as far as 

 the Kistna. Amongst the CVprinidse, 16 genera^ are represented 

 in Malabar, 12 of which are likewise found in Ceylon : of the 

 remaining 4, 1 is common to the western Ghauts and the Hima- 

 layas, 1 to Western Asia and Sind ; while of the other 2, one is 

 distributed through India, the other is local at Madras. Ceylon 

 possesses no genus of Carps unrepresented in Malabar. 



Of species, 60 are found from Canara down to the western 

 Grhauts (including the Neilgherry hills and rivers at their bases) 

 and Ceylon ; 40 are found in Canara or Malabar (2 of which are 

 common to the Himalayas, and 5 to the plains of ludia) ; 7 are found 

 in Malabar and Ceylon; 7 restricted to Ceylon; 1 to India and 

 Ceylon. 



Amongst the Acanthopterygiaus, \1 genera are found in Ma- 

 labar and Ceylon : 2 of these are restricted to Malabar ; 2 are 

 common to India and Malabar ; 6 to India, Malabar, and Ceylon ; 

 1 is only found in Ceylon. Of species, 27 are found in Malabar 

 and Ceylon : 14 are Malabar forms, 7 of which are found in the 

 plains of India ; 9 are common to India, Malabar, and Ceylon ; 1 

 to Malabar and Siam ; 3 to Ceylon, one of which extends to 

 Java. 



I have now to refer to a certain peculiar distribution of fishes, 

 already remarked upon, but respecting which a more detailed 

 examination is necessary. 



Genus Pristolepis is found along the western Ghauts of 

 India, is absent from the Hindustan subregion, but reappears 

 in Burma, whence it is distributed to the islands of the Malay 

 archipelago. OpMocephalus micropeltes is found from Canara to 

 Cochin, is absent from Hindustan, but reappears in Siam. 



1 This must not be understood to mean that these genera are absent from the 

 waters of the plains of India. 



