1923.] 



Fauna of the Chiïka Lake : Fish 



717 



1865. Ambassis dussumieri, Kner, Reis. ' Novara' Fisch., p. 41. 



1869. Ambassis vachelli, Peters, Monatsb. Königl. Preuss. AJcad. Wiss., Berlin (1868), p. 255. 



1870. Ambassis dussumieri, Day, Proc. Zool. Soc. London, p. 681. 



1874. Ambassis gymnocephalus, Bleeker, Nat. Verh. Roll. Maatsch. Wetensch. II, p. 15. 



1877. Ambassis gymnocephalus, Bleeker, All. Ichthyol. Ind. Orient. Néerl. VIII, pp. 133 and 138, 



pi. ccclii, fig. 3. 



1878. Ambassis gymnocephalus, Day, Fish. Ind. p. 54, pl. ccclii, fig. 3. 



1879. Ambassis gymnocephalus, Bleeker, Verh. Ahad. Amsterdam, XVIII, p. 13. 

 1889. Ambassis gymnocephalus, Day, Faun. Brit. Ind. Fish. I, p. 489. 



1905. Priopis gymnocephalus, Jordan and Seale, Proc. U. S. Nat. Mus XXVIII, p. 780. 

 1905. Ambassis gymnocephalus, Fowler, Proc. Acad. Nat. Sei. Philadelphia LVII, p. 501. 

 1913. Ambassis gymnocephalus, Weber, Fisch. ' Siboga '-Exped., p. 217. 



Lacépède's figure is defective as it does not show that the lateral line is not continuous. 



In many specimens there is no external appearance of the horizontal spine in front 

 of the first dorsal fin. 



In some specimens the tips of the pelvic fins reach the vent, covering the anal opening . 

 The caudal fin is not tipped with black in some, and in some the skin between the first dorsal 

 tin and the body is black. 



There are altogether forty-seven specimens in the collection ; the following list gives 

 the distribution of the species in the lake : — 











mm. 



9 specimens 



... OfiBarkul... 



... 



18-21st September, 1914 



... 39—48 



6 



. . . Off mouth of Barkul Bay 



18th September, 1914 



... 35-5—48 



1 specimen 



... OfiBarkul... 



... 



13th November, 1914 



• . . OD 



1 



. . . Cnirriya Island 



(shore 









collecting) 



... 



13th February, 1914 



... 16-5 



3 specimens 



... Chirriya Island (T 



owards 









Samal Point) 



... 



17th February, 1914 



... 42-5— 47-5 



1 specimen 



... Between Chirriva Island 









and Barkuda Island . . . 



17th November. 1914 



... 47 



3 specimens 



... Rambha Bay 



... 



February, 1914 



... 46—51 



1 specimen 



55 55 



... 



March, 1914 



... 44 



1 specimen 



. . . Satpara (shore 



3ollect- 









ing) 



... 



13th March, 1914 



... 17-5 



2 specimens 



... West of Satpara 



(tow 









netting) . . . 



... 



20th March, 1914 



... 10—12 



1 specimen 



. . . Satpara 



... 



March, 1914 



... 43 



5 specimens 



.. . ,, ... 



... 



12-13th September, 1914 



... 38—50 



3 



. . . ,, ... 



... 



October, 1914 



... 40 43 



1 specimen 



,, 



... 



... 



... 40-5 



The species occurs in the main area of the lake as well as in the outer channel, where 

 it breeds. It is a permanent inhabitant in the lake. 



Distribution. — Coasts of Orissa and Malabar, entering rivers and estuaries in India, 

 Seychelles, Penang, Javanese and Chinese seas, Celebes and Isle de France. 



