BAEBUS. 3 



Synopsis of the Species. 

 I. Exposed surface of scales striated by numerous longitudinal, or even some- 

 what converging, straight or slightly wavy canals * ; dorsal fin with 8 to 11 

 branched rays, the last simple ray, if ossified, never serrated ; two barbels 

 on each side, rarely one f. 

 A. Last simple dorsal ray more or less enlarged, ossified, without trace 

 of segmentation, at least in its basal half, forming a more or less strong 

 spine t ; anal with 5 branched rays §. 



1. Ventral fin with its first ray in front of or below anterior rays of dorsal, 

 or dorsal originating slightly in advance of ventrals ; 4|-8£ scales 

 between origin of dorsal fin and lateral line. 

 a. Lower lip continuous across the chin. 



a. 36-46 scales in lateral line, 4-6 between lateral line and ventral, 

 16-18 round caudal peduncle. 

 Sc. 44-46 ^, 5 ; dorsal with 9 branched rays ; 

 posterior barbel not half diameter of eye, 



anterior usually absent 1. B. tropidolepis, Blgr., p. 20. 



7— 



Sc. 43 yf , 5 ; dorsal with 8 branched rays ; pos- 

 terior barbel J diameter of eye . ... 2. B. polylepis, Blgr., p. 21. 



Sc. 36-42 grjjl, 4 ; dorsal with 8 branched rays ; 

 posterior barbel as long as eye ; first ray of 

 ventral in advance of first ray of dorsal . . 3. B. Jwlvbi, Stdr., p. 22. 



Sc. 40 gi, 4 ; dorsal with 8 branched rays ; pos- 

 terior barbel as long as eye ; first ray of 

 dorsal in advance of first ray of ventral . . 4. B. microterolepis, Blgr., p. 23. 



/3. 32-37 scales in lateral line, 4 between lateral line and ventral, 

 12-14 round caudal peduncle ; dorsal with 8 branched rays. 

 Sc. 32-37 p, 4; posterior barbel 2 to 2\ diameters 

 of eye ; interorbital width 2| to 3 times in 

 length of head ; lower lip with a median 

 lobe 5. B. macronema, Blgr., p. 24. 



* The species showing this type of scales (the Bynni or Mahseer Group) agree very 

 closely in the number of vertebrae, viz. 40 to 44 (23-24+17-21). 



t In B. tropidolepis and B. micronema. 



i In the present synopsis, and in the descriptions, the length of the stiff part only 

 is given. 



§ It is of course impossible to marshall the multitude of species grouped under this 

 head in anything like a linear series. Different groupings could be adopted according to 

 the weight attached to the size of the scales, the structure of the mouth, the position of 

 the dorsal fin, &c. The arrangement here followed is that which appears to the author 

 to lead most readily to correct identification of specimens. 



