BAKBTJS. 11 



across chin ; lower jaw with angular edge ; 



caudal peduncle 1J times as long as deep . 77. B. johnstonii, Blgr., p. 90. 

 Sc. 32-34 % 3, 12 ; dorsal with 9 branched 

 rays ; lips produced into triangular lobes ; 

 caudal peduncle about 1^ times as long as 



deep 78. B. zambesensis, Peters, p. 91. 



5— 

 Sc. 32-33 gf, 2, 14 ; dorsal with 8 branched 



rays ; lips produced into triangular lobes ; 



caudal peduncle 1^ times as long as deep . 79. B. lohochilus, Blgr., p. 92. 



/3. Posterior barbel \-§ diameter of eye. 



* Lower lip continuous across chin ; dorsal with 9-10 branched 

 rays. 



4- 



Sc\ 30-32 p, 2, 12 ; lips produced into trian- 

 gular lobes ; caudal peduncle 1^ times as 

 long as deep 80. B. ehilotes, Blgr., p. 93. 



Sc. 26-28 ||, 2, 12 ; caudal peduncle a little 



longer than deep 81. B. caudovittatus, Blgr., p. 94. 



** Lower lip not extending across chin ; dorsal with 8-9 branched 

 rays, 

 f Lower jaw with angular edge. 

 Sc. 30-32 ||, 2£-3, 12 ; caudal peduncle 1£-1£ 



times as long as deep 82. B. rhodesianus, Blgr., p. 95. 



Sc. 30-31 et, 2i, 12 ; caudal peduncle not longer 



tban deep 83. B. victoria', Blgr., p. 96. 



ft Lower jaw without angular edge. 

 Sc. 34 p, 2i, 12 ; edge of dorsal straight ; 



caudal peduncle 1\ times as long as deep . 84. B. fairbaimii, Blgr., p. 97. 



4- 

 Sc. 32 rj, 2, 12 ; edge of dorsal concave ; caudal 



peduncle 1£ times as long as deep . . . 85. B. codringtonii, Blgr., p. 98. 



*** Lower lip not extending across chin ; dorsal with 10-11 branched 

 rays. 

 Sc. 29 A, 2\, 12; edge of dorsal concave ; caudal 



peduncle li times as long as deep . . .86. B. wurtzi, Pellegr., p. 99. 



Ql 



Sc. 25-27 p, 2, 12 ; edge of dorsal concave ; 



caudal peduncle a little longer tban deep . 87. B. macrolepis, Pfeff., p. 99. 



4- 



Sc. 24 of, 2, 12 ; edge of dorsal convex in front ; 



caudal peduncle as long as deep .... 88. B. lagoensis, Gthr., p. 100. 



y. Posterior barbel ^ diameter of eye ; lower lip continuous across chin. 

 Sc. 28jj,2, 12 89. B. altldorsalis, Blgr., p. 101. 



