424 Mr. G. A. Boulcnger on 



ill length of head ; dorsal fin nearer caudal 



than occiput B. Holubi, Stdr. 



B. So. 30-38 5i4| 2i-3 ; I). Ill IV 8-9. 

 1. Lower lip not continuous across the chin. 

 a. Mouth inferior, evenly curved. 



a. Anterior harbel 1| to \\, posterior 

 1 5 to 1 f diameters of eye ; inter- 

 orbital width 2^ to 3 'times in 

 lenjJTth of head. 

 Depth of body 2§ to 3 times in total lenpth ; 



snout less than \ length of hf-ad B. siirkis, Riipp. 



Depth of body more than 3 times in total length ; [p. 428. 



buout more than \ length of head B. Ilarriv(/t<>ni, lilgr., 



^. Barbels not more than 1? diameters 



of eye. 



* Ventrals not in advance of origin 



of dorsal : inttMorbital width 2h 



to 3 times in length of head. 



Length of head 3^ to 3f times in total length ; 



snout rounded, not more than I^ diameters [p. 429. 



of eye, wLieh is 3 times in length of head . . B. jarsi?ms, Blgr., 

 Length of head 3f to 4^ times in total lenglh ; 

 snout rounded, not twice as long as eye, 

 which is more than 3 times in length of 



head B. intenneiUus, Paipp. 



Length of head 4 to 4^ times in total length ; 

 snout rather pointed, nearly twice as long 



as eye in the adult B. Feryussojiii, Blgr. 



** Ventrals anterior to origin of 

 dorsal. 

 Interorbital width 2i times in length of head. . B. Eduardiauus, Blgr. 

 Interorbitiil width more than 4 times in length 



of head B. Breijei-{, M. Weber. 



b. Mouth inferior, forming a broken arch, 



a feebly curved transverse line in 



front ; lips very feebly developed ; [p. 429. 



barbels not longer than eye B. plagiostumiis, Blgr., 



c. Mouth terminal ; anterior barbel not 



longer than eye. 

 Interorbital wfdth 2f to' 3 times in length of 



head ; posterior barbel \\ to 1| diameters of [p. 430. 



eye B. platystonius, Blgr., 



Interorbital widih 3| to 4^ times in length of 



head ; posterior barbel not longer than eye. B. rjorr/iiari, Riipp. f 

 2. Lower lip continuous across tlie chin, 

 sometimes produced into a median 

 lobe. 

 a. Spine of dorsal fin as long as or longer 

 than head ; interorbital width 2^ to 

 3 times in length of head. 

 Snout strongly projecting beyond lower jaw ; 

 anterior larbel not or but slightly longer 



t B. elo)igati.is, lUip]),, cannot l)e separated from B. f/orrjuari. 



