XXXIII. ON SOME NEW OR RARE .SPECIES 



OF FISH FROM THE EASTERN 



HIMALAYAS. 



Z?y Sunder L,.\l Hora, M.Sc, AssislmU Superinlendent, 

 Zoological Survey of India. 



(Plate XXIX.) 



The fijli on which the following notes are based formed part 

 of a collection recently made by Mr. G. E Shaw in the foot-hills 

 of the Eastern Himalayas below Darji'ing. Mr. vShavv has taken 

 great pains to make his collection of the fishes of this area com- 

 plete and I am greatly indebted to him for the opportunity of 

 examining it. Among the specimens I have found examples of 

 Psilorhynchus sucatio and Erethistes clnngata which were hitherto 

 known only from the original descriptions of Hamilton Bucha- 

 nan and Daj', while there are three species which appear to be 

 new. Mr. Shaw has very kindly presented specimens of the 

 species he collected to the collection of the Zoological Survey' of 

 India. 



Psilorhynchus sucatio (Ham. Buch.). 



(PI. XXIX, figs. I, ifl.) 



i!S22. Cvpriiiiis sucatio, Hamilton Buchanan, Fish. Ganges, pp. ,^47 



and 393. 

 1839. Psiloi-hynch:!S sucatio, McClelland, Asiatic Res. .XIX pp. 3110 



and 428, pi. 50, figs. I and In. (,i4,v 



18(18. Psilorhy>2clnis sucatio, Giinther, Faun. Bi-it. hid. Fisli. \'II, p. 

 1871. Psilorhynchus sucatio, Da\', Journ. As. Soc. Bengal XL, p, 



107, pi. ix, fig. I. 



This species has hitherto been known only from Hamilton 

 Buchanan's description published in 1822 and from the manuscript 

 drawing preserved in the library of the Asiatic Society of Bengal. 

 In 1871 Day, in the work cited above, remarked : "it does not 

 appear at all impossible that the other, P. sucatio, H. Buch , 

 may be destitute of an air-bladder and would thus form a distinct 

 genus appertaining to the subfamily Homalopterinae, " but in 

 his later work ' he suggested that it was synonymous with Homa- 

 loptera biliiicala. 



I have found three specimens in iMr. Shaw's collection which 

 agree with the description and figure of Hamilton Buchanan's 

 Cypriniis sucatio. The species possesses a fairly well-developed 

 bladder of the cyprinid type and is destitute of barbels. In its 



1 Day, Fish India II. p. 526 (1878). 



