ao6 Memoirs of the Indian Museum. [Vol. V, 



Genus CARCHARINUS, Blainville. 

 Carcharinus gangeticus (Müller and Henle). 



1841. Carcharias (Prinodon) gangeticus, Müller and Henle, Plagiost., p. 39, pi. xiii. 



1878. Carcharias gangeticus. Day, Fish. Ind., p. 715, pi. clxxxvii, fig 1. 



1889. Carcharias gangeticus, Day, Faun. Brit. Ind., Fish., I, p. 13. 



1913. Carcharinus gangeticus, Garman, Mem. Mus. Comp. Zool. (Harvard), XXXI, p. 139. 



A specimen was obtained at Satpara in March 191 4, the total length of which is 

 747 mm. The jaw of a young fish was also secured at Rambha in February of the same 

 year. The length and the breadth of this jaw are 68 mm. and 43 mm. respectively. 

 There are 27 rows of teeth in the upper jaw with five teeth in each row and 25 rows 

 in the lower jaw with 6 teeth in each row. There is only one tooth in the middle 

 of each jaw and it is very small. The rest, of the teeth are fairly large, generally with 

 long cusps and broad bases, and their margins are serrated; in the end rows, how- 

 ever, the cusps are very short and bent inwards with the bases somewhat swollen. 



The species is found in the main area and is probably a permanent inhabitant 

 of the lake. 



Distribution : — The species is met with in the seas and estuaries of India, in 

 Japan, the Fiji Islands and at Baghdad. Individuals are known to ascend rivers 

 above tidal influence. 



Carcharinus melanopterus (Quoy and Gaimard). 



1824. Carcharias melanopterus, Quoy and Gaimard, Voy. Uran. Poiss., p. 194, pi. xliii, figs. 



1 and 2. 

 1878. Carcharias melanopterus. Day, Fish. Ind., p. 715, pi. clxxxv, fig. 3. 

 1889. Carcharias melanopterus, Day, Faun. Brit. Ind., Fish., I, p. 14. 

 1913. Carcharinus melanopterus, Garman, Mem. Mus. Comp. Zool. (Harvard), XXXVI, p. 134. 



There is no specimen of this species in the collection. Dr. Jenkins, however, 

 reported (Rec. Ind. Mus., V, p. 135) that he obtained the species at Satpara in 

 December, 1908. Probably it is an occasional visitor to the outer channel when the 

 water becomes brackish. 



Distribution: — This species is found in the seas of India and of the Malay 

 Archipelago. 



Suborder BATOIDEL 



Family PRISTIDAE. 



Genus PRISTIS, Klein. 



Pristis pectinatus, Latham. 



1794. Pristis pectinatus, Datham, Trans. Linn. Soc, II, p. 278, pi. xxvi, fig. 2. 



1822. Squalus pectinatus, Hamilton Buchanan, Fish. Gang., pp. 5, 361. 



1841. Pristis pectinatus, Müller and Henle, Plagiost., p. 109. 



1878. Pristis pectinatus, Day, Fish. Ind., p. 811. 



1889. Pristis pectinatus, Day, Faun. Brit. Ind., Fish., I, p. 39. 



1909. Pristis pectinatus, Annandale, Mem. Ind. Mus., II, p. 7. 



1913. Pristis pectinatus, Garman, Mem. Mus. Comp. Zool. (Havard), XXXVI, p. 262. 



