I 9 I 6-] Fauna of the Chilka Lake : Fish. 451 



species. Day evidently followed Kaup when, by so doing, he found that he could use 

 the more popular name— the 0. boro of Gray and the P. boro of his own Fishes of 

 Malabar. Thus 0. boro, as understood by Day after 1865 and by Kaup from 1856, 

 includes also 0. hijala of Hamilton Buchanan, and 0. boro of Kaup and Day repre- 

 sents, in part only, 0. boro of Hamilton Buchanan. 



The Chilka collection comprises specimens of 0. boro of different sizes, none of 

 which show any of the characters believed to be specific in 0. hijala. 



The following list gives the distribution of 0. boro in the Lake. 

 1 specimen . . . . Rambha Bay . . measuring 400 mm. in length 



1 » •• •• Balugaon .. 3T-VIÜ-13 .. „ 410 „ 



2 specimens .. .. Barkul .. Sept., 1914. . . „ 540 „ and 610 mm. 



The fish appears to be a permanent inhabitant of the lake in the main area, but 

 it does not breed there. 



Distribution: — Seas and estuaries of India and the Malay Archipelago, ascending 

 large rivers above tidal reach ; also in the river of the Sambas. 



Suborder HAPLOMI. 



Family CYPRINODONTIDAE. 



Subfamily APLOCHEIUNAE. 1 



Genus PANCHAX, Cuvier and Valenciennes. 



Panchax panchax (Hamilton Buchanan). 



(Text-figures 15, 17.) 



1822. Esox panchax, Hamilton Buchanan, Fish. Gang., pp. 211, 380, pi. iii, fig. 69. 



1839. Aplocheilus chrysostigma, M'Clelland, Asiat. Research, XIX, pt. 2, pp. 301, 426, pi. xlii, figs. 



2a, 2b. 



1839. Aplocheilus panchax, M'Clelland, ibid., XIX, pt. 2, p. 302. 



1846. Panchax buchanani, Cuvier and Valenciennes, Hist. Nat. Poiss., XVIII, p. 383. 



1846. Panchax kuhlie, Cuvier and Valenciennes, ibid., XVIII, p. 384. 



1849. Panchax panchax, Cantor, Jo urn. Asiat. Soc. Bengal, 1849, p. 1234. 



1853. Panchax buchanani, Bleeker, Nalez. Ichthyol. Bing. Hind., p. 144. 



1859. Panchax buchanani, Blyth, Journ. Asiat. Soc. Bengal, XXVII, p. 288 (1858). 



1863. Panchax buchanani, Bleeker, All. Ich. Ind. Orient. Neérland., Ill, p. 141, tab. cxliv, fig. 3. 



1866. Haplochilus panchax, Günther, Cat. Fish. Brit. Mus., VI, p. 311. 



1873. Haplochilus panchax, Day, Rep. Fr. Fish. Ind. Burma, p. cclxxvi. 



1878. Haplochilus panchax, Day, Fish. Ind., p. 523, pi. cxxi, fig. 3. 



1889. Haplochilus panchax, Day, Faun. Brit. Ind. Fish., I, p. 427. 



1895. Haplochilus panchax, Garman. Mem. Mus. Comp. Zool. Harvard, XIX, p. 124, pi. iii, fig. 7 



(teeth). 



1912. Haplochilus panchax, Sewell and Chaudhuri, Ind. Fish. Mos. Dest., p. 3, fig. 2. 



There are altogether sixteen specimens in the collection, all from the main area 

 of the lake. The list given below will show the time and place of their occurrence in 

 the lake. 



' Bleeker, AU. Ichth. Ind. Orient. Neerland., Ill, p. 140. 



