5o6 Memoirs of the Indian Museum. [Voi,. V, 



There are fifty-seven specimens in the collection. This fish occurs very extensive- 

 ly all over the lake and breeds freely everywhere at least from February to Septem- 

 ber. Numerous young measuring 12 mm. and upwards were secured in March, June, 

 July and September. Some of the young have black or grey blotches or stripes. 

 The following statement shows the different localities in the lake whence the speci- 

 mens were obtained, and their number and size. 



28 mm. and 40 mm. 



24 „ to 56 



.. 255 „ to 275 



2 specimens 



Off Balugaon 



21-VÜ-13 



9 



. Off Barkul . . 



i3-xi-i2 



3 



. Between Chiriya Island and 







Barkuda Island 



17-XI-14 



10 



Between Domkuda and Sa- 







mal Island 



July, 1914 



3 



. Off Nalbano 



Sept. 1914 



1 specimen 



South East of Patsahanipur 



6-Ü1-14 



1 - • 



Rambha Bay 





21 specimens 



. Off Samal Island 



22-ix-I3 



6 



. Seruanaddi near Barnikuda 



4-ix-i4 



1 specimen 



Seruanaddi 



8-ix-i4 



12 ,, 



to 



23 



24 „ 



to 



53 



12 „ 







86 „ 







11 „ 



to 



47 



17 .. 



to 



46 



46 mm 







This fish is eaten by the Uriyas among whom it commands a very extensive sale 

 and is extremely cheap ; it is very popular with the poorer classes of the people 

 round the lake ; even the skin, spines and bones separately find a ready market. 



Distribution : — Seas of India, of the Malay Archipelago, China and Japan ; also 

 Australia. 



Division GYMNODONTES. 



Family TETRODONTIDAK. 



Genus TETRODON, Unnaeus. 



Tetrodon fluviatilis, Hamilton Buchanan. 



1822. Tetrodon fluviatilis, Hamilton Buchanan, Fish. Ganges, pp. 6 and 362, pi. xxx, fig. 1. 



1823. Tetrodon nigroviridis, Procé, Bull. Soc. Philom. (1822), p. 130. 

 1849. Tetrodon simulans, Cantor, Journ. Asiat. Soc. Bengal, p. 1356. 

 i860. Arothron dorsovittatus, Blyth, ibid., XXIX, p. 173. 



1865. Crayracion fluviatilis, Bleeker, Ail. Ichthyol. Ind. Orient. Neerl., p. 68, pi. ccx, fig. 4. 



1865. Crayracion fluviatilis, Day, Fish. Malabar, p. 256. 



1870. Tetrodon fluviatilis. Günther, Cat. Fish. Brit. Mus., VIII, p. 299. 



1878. Tetrodon fluviatilis, Day, Fish. Ind., p. 707, pl.clxxxiii, fig. 1. 



1889. Tetrodon fluviatilis, Id., Faun. Brit. Ind. Fish., II, p. 496. 



1902. Tetrodon fluviatihs, Regan, Proc. Zool. Soc, 1902 (ii), p. 284. 



1910. Tetrodon fluviatilis, Annandale and Jenkins, Mem. Ind. Mus., Ill, pp. 8 and 15. 



There are only three young specimens in the collection, one measuring 44 mm. 

 in length caught off Nalbano in September, 1914 and two measuring 70 mm. and 

 72 mm. in length from Rambha Bay in February, 1914. The fish is probably a per- 

 manent inhabitant in the main area of the lake and breeds in it. 



Distribution : — Seas and estuaries of India and the Malay Archipelago. This 



