Psilorhynchus. INDIAN CYPRINIDJ?. 429 



Now the Stolephore or Engraulis, Cuv. (Anchovies) belong to the Clu- 

 peidae, to which the depressed form, and short anals of these species render it 

 impossible that they could belong ; and Buchanan seems afterwards to have 

 corrected the mistake, as the species in question appear to me to be described 

 in the Gangetic Fishes as Cyprinus sucatio, Buch. and Cyprinus halitora, id. 



The typical character of these species depends on the extreme prolongation 

 of the snout in front of a remarkably small soft mouth, which is without cirri. 



The defenceless body, the backward position of the eyes, the well formed 

 and fully developed fins, indicative of rapid powers of motion, are also analo- 

 gical relations to the suctorial types of other classes. We are not acquainted 

 with the habits of the species in question, and can only say that they were 

 obtained in the north-eastern parts of Bengal, to which they have been pro- 

 bably swept down from the mountains.* 



I. — Psilorhynchus sucatio. 



t. 50, f. 1. 



Cyp. sucatio, Buch. Gan. Fis. 347, 



Stolephorus sukati, id Coll. 



Pectorals round, snout depressed and elongated in front of the mouth, 

 which is small, with fleshy protractile lips ; apertures of the gills small, belly 

 flat. The fin rays are, 



D.9 : P.13 : V.9 : A.5 : C. 16. 

 Said to have a strong resemblance to many of the genus Cohitis both in form 

 and colour, but wants cirri. 



* Since the cliaracters of these interesting species noted in the synopsis were printed, together 

 witli other remarks regarding tlie singular forms of tlie two species figured by Buchanan, I have 

 been fortunate enough to find a single specimen of one of them in a small collection of fislies with 

 which I have been favoured from Upper Assam by Capt. Hannay. 



3 1 



