760 



Memoirs of the Indian Museum. 



[Vol. V, 



Diameter of lower eye 



... 



4-5 



Length of pectoral fin of right side 



12-0 



Length, of pectoral fin of left side 



9-0 



Longest ray of dorsal 



... 



14-0 



Longest ray of anal 



... 



13-5 



Greatest deptli of body 



... 



71-0 



Length of pelvic fin 



... ... ... 



8-5 



Family CYNOGLOSSIDAE. 

 Genus CYNOGLOSSUS Hamilton Buchanan. 



Cynoglossus brevis Günther. 



1862. Cynoglossus brevis, Günther, Cat. Brit. Mus. Fish. IV, p. 500. 

 1878. Cynoglossus brevis, Day, Fish. India II, p. 437, pi. xcvii, fig. 2. 



There are sixty specimens of this species in the collection. It has so far been known 

 from the river Hughli at Calcutta and is mainly a brackish water form. There is, however» 

 one specimen in the old collection of the Indian Museum obtained by the Marine Survey 

 from along the Orissa Coast (off Chilka Lake). 



The colour varies greatly with age. In the young there are several short black bands 

 on the body, which with the growth of the fish become thinner and more numerous and ulti- 

 mately produce a reticulum in the adult. There is one very characteristic feature of the 

 species, that several rays of the vertical fins at intervals are dark in colour. 



The longest specimen is about 14« 5 cm. in length including the caudal fin. 



The list given below shows the place and time of occurrence of the species in the 

 lake : — 



1 specimen ... 



Gopkuda Bay 



... 



14 February 1914. 



1 ,, ... 



... Off Barkuda 1. ... 



... 



17 February 1914. 



1 ,, ... 



South of Kalidai 



... 



21 February 1914. 



1 ,5 ... 



Chirrial. Bay 



... 



23 February 1914. 



1 ,, ... 



i mile off Kalidai 



... 



1 March 1914. 



3 specimens 



1 mile South of Kalidai 



... 



1 March 1914, 



t» 55 ... 



Off Barkui Bay ... 



... 



1 March 1914. 



4 



1 ,5 ... 



Salari to Gantasila 



... 



3 March 1914. 



4 yonng 



West of Satpara I. 



.. . 



20 March 1914. 



O J, ... 



Shore of Mahosa .. . 





20 March 1914. 



13 specimens 



Channel between Satpara 



and 







Barhampur I. ... 



... 



2 September 1914. 



O j, ... 



Channel off Satpara 





2 September 1914. 



14 



-It 5, ... 



Channel off Barhampur I. 



... 



2 September 1914. 



24 „ 



Channel between Satpara 



and 







Barnikuda 



... 



4 September 1914. 



1 young 



Island near Manikpatna 



... 



7 September 1914. 



1 specimen ... 



Serua Nadi 



... 



8 September 1914. 



1 55 ... 



About 8 miles South-East of 







Kalupara 



... 



16 September 1914 



J- 55 ... 



Mouth of Rambha Bay 



... 



17 November 1914. 







