174 Report on some Fislies received from the Sitang Biver. [No. 2, 



_D. 15.— A. 13.— P. 21.— C. 12. 



Colour dusky yellowish-green, with usually three distinct palé 

 bands crossing the dorsal aspect, anterior to the dorsal fin ; the first 

 passes from eye to eye, terminating near the hind-part of the orbits ; 

 the second passes in a curve from before the pectorals, and is some- 

 times double ; and the third occasionally reaches back as far as the 

 dorsal fin, but is generally a little in advance of it ; the interspaces 

 of those palé bands beinginfuscated and undivided, but posterior to the 

 third of them the alternating dusky bands are broken into roundish 

 spots of various sizes, mueh as in Gastrophtsus fltjviatilis (as 

 figured by Buchanan Hamilton), only the spots run generally smaller ; 

 but there are no bars on the caudal fin, though occasionally it is much 

 infuscated, together with the entire lower-parts. A common species. 

 Gasteophysus micro pthalmos, nobis, n. s. Still commoner thau 

 the last, but hitherto overlooked from its general resemblance to G. 

 patoca, (B. H.) It has, hovvever, a conspicuously smaller eye, a con- 

 siderable development of spinelets both anterior and posterior to the 

 ' pectorals (whereas G. patoca has generally the sides quite smooth 

 or at most and rarely a very few spinelets at that part), and the 

 nareal apertures have no distinct appendage (whereas in G. patoca 

 they have a considerable membranous appendage both before and be- 

 hind, approximating this particular species to Arothron). Again, 

 the palé spots of the upper-parts are generally smaller and more 

 numerous, also more angular, and they mostly form a series of trans- 

 verse stripes on the sides. Head exceeding two-fifths of the total 

 length : the fimbriation of the lips internally much developed. Dor- 

 sal and anal fins rather fálcate ; the caudal square. 



D. 13.— .4. 11 or 12,— P. 16.— C. 12. 

 Colour dark olive-green on the upper-parts, studded with numerous 

 greenish-silvery spots and transverse stripes, the latter prevailing on 

 the sides : medial third of body spotless golden ; the belly white > 

 and the fins more or less tinged with bright yellovv. Irides orange. 

 Equally common with G. patoca, and attains to as large a size, or to 

 about 18 in. in length. 



Our three other species, obtainable in the Calcutta fish-bazars, are 

 Leiosomus c jtcutia, Gastjkophxsus ltjnams, and G. PATOCA, 

 (B. H.) 



I 



