1921.] S. h. HoRA : Fish of Manipur. 199 



It is unfortunate that the collection of A. pangia in the 

 Indian Museum is very poor. There is only one specimen No. 

 2590 from Mandalay and even that has been allowed to desiccate 

 and is not fit for examination. I am, therefore, unable to decide 

 whether the two species should be united until further collections 

 from various parts of India are available for examination. 



The largest specimen in our IManipur collection is 60 mm. in 

 length. On dissection the females were found to contain eggs. 



Acanthophthalmus pangia has a very wide range, extending 

 over North Eastern Bengal, Manipur. Shan States, Burma to 

 Java and Sumatra. 



Neinachilus manipurensis, Chaudhuri, 



1912. Nemachiliis manipurensis Chaudhuri, Rec. Ind. Mus.. VIII, p. 

 44,^, pi. xl, figs. 4, 4a, 4.b, and pi. xli, figs, i, la, lb. 



Numerous specimens of this species were collected in the 

 Auwlok and the Maklang rivers in the Kangjupkhul Hills; also a 

 large number of specimens from Kangjupkhul piikhri (pond) 

 behind the inspection bungalow. 



Except for slight variation in the colour of some specimens, 

 they argee with Chaudhuri's description of the species. 



Nemachilus botia (Ham. Buch.). 



1889. Nemachilus botia, Day, op. cit., p. 227. 



1919. Nemachilus botia, Annandale, Rec. Ind. Mus., XVI, p. 127. 



A single specimen 68 mm. in length was obtained at Ghaspani 

 among the Naga Hills. The specimen is provided with a free 

 orbital process below the eye and is probably a male. The lower 

 lip is interrupted in the middle and is provided with characteristic 

 cushion-like swellings. 



Nemachilus botia is widely distributed all over northern and 

 central India and also occurs in the Shan Plateau. 



Nemachilus zonaltcrnans (Blyth). 

 Plate X, figs. 3, ^a. 



iS6o. Cobitis zonalternans, Blyth, op. cit., p. 172. 

 18S9. Nemachilus zonalternans. Day, op. cit., p. 232. 



This species is one of the commonest fish found in the Manipur 

 Valley. Of 112 specimens, 77 are females and the rest males. 

 The sexual dimorphism exhibited by this species is like that found 

 in -V. botia and consists in the males having a groove in front of 

 the eye and a movable process of the preorbital bone. 



N . zon.alternans has hitherto been known from two specimens 

 from Tenasserim. Both of these specimens are in the collection of 

 the Indian Museum. One of these has been allowed to dessicate 

 and the second one is not in a good condition for detailed examina- 

 tion. Moreover as the descriptions of Blyth and Day are meagre, 

 I take this opportunity of writing a short note on the type-speci- 



