290 Records of the Indian Museum. [Vol. Ill, 



Acanthopterygii — 



PERCID^— 



* Amhassis iiiyops. Ernakulam (Cochin). 

 ,, naltia. vShasthancottah Lake. 

 Gerres limbatiis. Cochin, backwater (brackish water). 



NANDID^— 



Nandus marmoratus. Travancore. 



GOBIID^— 



Gobius giuris. vShasthancottah Lake. 



MUGIIvID^— 



Mugil cunnesius. Cochin, backwater (brackish water). 



OPHIOCEPHALID^— 



Ophiocephalus gachua. Shencottah. Shasthancottah 



Lake. Kulattupuzha. 

 ,, striatus. vShasthancottah I/ake. 



LABYRINTHICI— 



Polyacanthus cupanus. Kerumadi. South end of 



Vimbanad Lake (sHghtl}' 

 brackish water). 

 CHROMIDES— 



Etroplus maculatus. Cochin, backwater (brackish 



water) . Shasthancottah 

 Lake. 

 ,, suratensis. Shasthancottah Lake. 



None of these species seem to call for special note, but the 

 exact localities may prove interesting. 



4. The Indian species op the genus Discognathtis. — Disco- 

 gnathus is a widely distributed genus of the subfamily Cyprininae. 

 It occurs in rivers, especially in mountain streams, in Asia and 

 Africa,^ and extends throughout India, Ce5don and the Tenasserim 

 provinces. 



The difficulty of satisfactorily identifying specimens of the 

 Indian species of this genus according to either Giinther ^ or 

 Day ^ induced me to look through the collection in the Indian 

 Museum, with the following results : — 



I Cat. of the Freshwater Fishes of Africa, vol. i, p. 343 et seq., Brit. Mus.. 

 1909. 



1 Cat. Fish. Brit. Mus., vol. vii, p. 69 etseq., 1868. 

 •" Fishes of India, vol. ii, p. 527 et seq. 



