igiô.J 



Fauna of the Chilka Lake : Fish. 



433 



the upper jaw, the bases of these triangular areas being turned towards the upper 

 jaw, with the apices towards the centre of the upper palate (text-fig. 10). 



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

 probably breeding in it. 



Distribution:— In seas, rivers, and brackish waters of Bombay, Madras, Orissa, 

 Bengal, Burma, Siam and the Malay Archipelago. 



■X.»'« ;•» °5 



Fig. 



Fig. 



8. — Arius satparanus, Chaudhuri. 



Teeth of upper jaw, palate and lower jaw. 



g. — Arms arms (Hamilton Buchanan). 



Teeth of upper jaw, palate and lower jaw. 



Fig. io. — Arius ccelatus, Cuvier and Valenciennes. 

 Teeth of upper jaw, palate and lower jaw. 



Fig. ii. — Arius falcariu, Richardson. 



Teeth of upper jaw, palate and lower jaw. 



Arius falcarius, Richardson. 



(Text-figure n.) 



1844. Arius falcarius, Richardson, Zool. Voy. Sulph. Fish, p. 134, pi. 62, figs. 7-9. 



1846. Arius falcarius, Richardson, Rep. Ichthy. Sea. Chin. Jap., p. 284. 



1866. Arms falcarius, Günther and Playfare, Fish. Zanzib., p. 114. 



1878. Arius falcarius, Day, Fish. Ind., p. 463, pi. cvi, fig. 5. 



1889. Arius falcarius, Day, Faun. Brit. Ind., Fish., I, p. 182. 



There is one adult specimen in the collection measuring 384 mm. , captured near 

 Barkuda Island inside the lake on 6-ix-i4, in five and a half feet of water. 



The villiform band of teeth in the upper jaw is equally wide throughout and 

 does not reach the angles of the jaw, nor is there a dividing line in the middle. 

 The palatine teeth are in two elongated patches, close and running parallel to the middle 

 line — the anterior teeth are granular and the posterior globular. The villiform teeth 

 in the lower jaw are divided by a smooth mesial line into two elongated arcuate 



