454 INDIAN CYPRINID^. 



Ten species of this genus are described by M. von Heckel, all of them 

 found by Baron Hiigel in the tributaries of the Hydaspes ; M. v. Heckel forms 

 them into three divisions, according to the structure and situation of the 

 mouth and snout ; but as these peculiarities, together with the dorsal spine, 

 form their great distinguishing feature from all previously known groups,^ 

 they ought perhaps to have been stated in the essential characters of the 

 genus, particularly as the species do not differ so much among themselves as 

 to render the subdivisions proposed by M. v. Heckel of much consequence. 



To enable the reader to identify the several species described by M. v. Heckel, 

 I here subjoin a synopsis of them : — 



I. Schizothorax plagiostomus, Heck. Fisc. Casch.t. i. Snout blunt and wrinkled, mouth in- 

 ferior, large and transverse ; cheeks and snout perforated with numerous pores. Length 8^ inches. 



2. Schizothorax sinuatus, id. o. c. t. ii. Head compressed and obtuse, mouth small, dorsal placed 

 over the commencement of the ventrals ; body spotted uniformly above the lateral line, below 

 silvery. Length 8 inches. 



3. Schizothorax curvifrons. id. o. c. t. iii. Snout placed in a line with the axis of the body, 

 crown rounded prominently over the eyes ; back spotted, as well as the dorsal fin. Length 8| inches. 



4. Schizothorax longipinnis, id. o. c. t. iv. Snout blunt, compressed and deep, corresponding 

 with the axis of the body ; anal fin long ; body without spots. Length 9f inches. 



5. Schizothorax niger, id. o. c. t. v. Snout short, head depressed over the eyes, sides and dorsal 

 uniformly spotted and dark. Length 9 inches. 



6. Schizothorax nasus, id. o. c. t. vi. Snout below the axis of the body, back rather abruptly 

 arched in front of the dorsal fin ; back and base of the dorsal fin spotted. Length 10^ inches. 



7- Schizothorax Hilgelii, id. o. c. t. vii. Snout below the axis of the body, thick. Dorsal fin 

 commences in the middle of the back, scales at the base of the anal fin very large ; spotted along 

 the back. Length 14 inches. 



8. Schizothorax micropogon, id. o. c. t. viii. f. 1. Snout in the axis of the body, cirri very 

 small, mouth small. Length 5 inches. 



