BARBUS. 9 



c. Lower lip interrupted on the chin ; mouth terminal ; dorsal with 8-9 



branched rays, its spine shorter than head. 

 6—7- 

 Sc. 37-40 ~^r 2 , 3-3| ; posterior barbel £- £ dia- 

 meter of eye ; interorbital width 3§-4 times 

 in length of head 56. B, rJioadesii, Blgr., p. 72. 



Sc. 35-37 j|, 3 ; posterior barbel 11—1 ? diameters 

 of eye ; interorbital width 2f-3 times in 

 length of head ; depth of body exceeding 

 length of head 57. B. platystomus, Blgr., p. 73. 



Sc. 31 gf, 2| ; posterior barbel 1J diameters 

 of eye ; interorbital width 4 times in length 

 of head ; depth of body not exceeding length 

 of head 58. B. saphiri, Blgr., p. 74. 



Sc. 32-36 ^trflj 2^-3 ; posterior barbel not 

 longer than eye ; depth of body not exceed- 

 ing length of head 59. B. gorguari, Riipp., p. 75. 



Sc. 26-27 tJ, 2 ; posterior barbel about § dia- 

 meter of eye ; interorbital width 3 times 

 in length of head 60. B. oxyrhynclius, Pfeff., p. 76. 



2. Base of ventral below middle of base of dorsal. 



a. Lower lip interrupted on the chin ; lower jaw without angular edge. 



Sc. 40 -^t^j <H, 16; dorsal with 8 branched rays; 



posterior barbel as long as eye 61. B. platyrhinus, Blgr., p. 76. 



b. Lower lip restricted to the sides ; lower jaw with angular edge. 



Sc. 36-40 gf, 4 ; dorsal with 9 branched rays ; 



posterior barbel not quite ^ diameter of 



eye 62. B. nyassce, Keilh., p. 77. 



Sc. 37 gf , 3, 14 ; dorsal with 8 branched rays ; 



posterior barbel as long as eye 63. B. elephantis, Blgr., p. 78. 



Sc. 29 77, 2^, 12 ; dorsal with 9 branched rays ; 



posterior barbel about £ diameter of eye; 



caudal peduncle 1| times as long as deep . 64. B. sector, Blgr., p. 78. 

 Sc. 27 |f, 2, 12 ; dorsal with 10 branched rays ; 



posterior barbel \ diameter of eye ; caudal 



peduncle slightly longer than deep . . .65. B. micronema, Blgr., p. 79. 



c. Lower lip continuous across the chin, forming a more or less developed 

 mental lobe. 

 Sc. 29 t|, 2, 12 ; dorsal with 9 branched rays ; 



posterior barbel §~2 diameter of eye . . 66. B. brum, Blgr., p. 80. 



