148 Report on so me Fislies received from Sitang JRiver. [No. 2, 



of África; but the tail is obliquely truncated underneath, as usual 

 in the genus ; and the high anterior dorsal fin is of a dusky plumbeous 

 colour, with a conspicuous black margin whicli again is slightly 

 fringed with white ; there is ordinarily, however, no second vvhite 

 line below the black, as figured by M. Valenciennes, though I have 

 found this in two small specimens, and the lower portion of the fin 

 is often conspicuously speckled with wliite. General colour of the 

 body fuscous ahove, subdued white beneath, the gill-covers inore or 

 less spotted with white, and rudimentary short transverse bands 

 passing up from the white of the belly ; neutral and anal fins white, 

 the pectorals and caudal a little speckled. Length 5 in. ; height of 

 anterior dorsal fin 1£ in. in the finest examples. Common at Poit 

 Blair, Andamán islands. 



P. 7 — radiatus, (B. H.) Tenasserim and Calcutta specimens 

 undistinguishable. 



P. 13 — radiatits, (B. H.) Ditto. The rays of the first dorsal 

 vary from 11 to 13 in the males, and in the females this fin is either 

 wanting altogether, or commonly so minute as to be discerned with 

 difficulty, while in sorae examples five short rays are readily percep- 

 tible. Occasionally in the males the first or lengthened ray of the 

 anterior dorsal is white to its base, and sometimes the second ray 

 also. Mostly under 3^ in. in length. 



Bolíeopthalmus inornatus, nobis, n, s. A small species perhaps, 

 with proportionally small mouth, the gape barely reaching to between 

 the eyes ; of agreenish colour, with about ten dark transverse bands, in 

 general not very distinct ; with colourless fins, excepting the two 

 dorsal, the membranes of which are minutely speckled with black 

 (as seen through a magnifier) ; the first dorsal being not more 

 elongated than the second. 



D. 5-22.— A. 22. 



Our largest specimen measures 3 in. long, but is probably not full- 

 grown. Tenasserim. 



Fam. ? 



Natídus mwimorítus, C. V. : Coius iiandus, B. H. Tenasserim. 

 Common in Lower Bengal. 

 Fam. Siluridce. 



Bagrus lkucophasis, nobis, n. s. A restricted Bagrus, of very 



