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 -yT" 3 , 3-3J ; posterior barbel ^— | dia- 

 meter of eye ; interorbital width 3|-4 times 

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



5- 

 Sc. 35-37 jf, 3 ; posterior barbel li— If diameters 



of eye ; interorbital width 2|-3 times in 

 length of head ; depth of body exceeding 

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



Sc. 31 p, 2h ; posterior barbel 1J diameters 

 of eye ; interorbital width 4 times in length 

 of head ; depth of body not exceeding length 

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



Sc. 32-36 jfcgi, 2f-3 ; posterior barbel not 

 longer than eye ; depth of body not exceed- 

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



4— 

 Sc. 26-27 jf, 2 ; posterior barbel about |- dia- 

 meter of eye ; interorbital width 3 times 

 in length of head 60. B. oxyrhynchus, 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 -gr^j '^2' 16> dorsal with 8 branched rays; 



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



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



6- 

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



posterior barbel not quite j diameter of 



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



Sc. 37 =£, 3, 14 ; dorsal with 8 branched rays ; ■ 



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



41 

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



posterior barbel about -J? diameter of eye ; 



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



AX 



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

 posterior barbel 5 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 p, 2, 12 ; dorsal with 9 branched rays ; 



posterior barbel §— £ diameter of eye . . 66. B. brucii, Blgr., p. 80. 



