BAEBUS. 13 



gl_9A 



Sc. 41-46 yjrp, 4, 18-20 ; last simple ray o£ 

 dorsal rather feeble, feebly serrated, ser- 

 rated part £— .V length of head ; interorbital 

 width 2A-2J times in length of head . . 98. B. ksibi, Blgr., p. 111. 



h. Base of ventral at least partly anterior to dorsal ; last simple ray of 

 dorsal strongly serrated. 



Sc. 44-47 ^fjj, 5-6, 18-20 ; base of ventral 

 partly below dorsal ; snout rounded, at 

 least 3 times in length of head ; mouth 

 moderate, inferior 99. B. antinorli, Blgr., p. 112. 



Sc. 4C-50 jE^t, 4-5, 20-22 ; base of ventral 

 partly below dorsal; snout narrow and 

 pointed, less than 3 times in length of head; 

 mouth very narrow, inferior 100. B. nasus, Gthr., p. 113. 



171 QI 



Sc. 44-46 i-ffcgl, 4-5, 20 ; base of ventral en- 

 tirely in advance of dorsal ; mouth terminal. 101. B. serra, Peters, p. 114. 



2. 32-40 scales in lateral line, 5^-7* between origin of dorsal and lateral 

 line ; posterior barbel not or but little longer than eye. 



a. Base of ventral entirely in advance of dorsal. 

 Sc. 34-39 §Egj, 3-4, 16-18 ; dorsal with 7 



(rarely 8) soft rays 102. B. paludinosus, Peters, p. 115. 



Sc. 32-33 ll, 21 14 ; dorsal with 7 branched 



rays ; length of head 4 times in total 



length 103. B. taitensis, Gthr., p. 117. 



5— 

 Sc. 33 t?, 2^-3, 14; dorsal with 8 branched rays; 



length of head 4-4* times in total length . 104. B. pfefferi, Blgr., p. 117. 



Sc. 33 p, 3, 14 ; dorsal with 8 branched rays ; 



length of head 3| times in total length . 105. B. mattozi, Guimar., p. 118. 



b. Base of ventral entirely or partly below dorsal. 



«. Caudal peduncle at least If times as long as deep. 



Sc. 32-33 §FJ|, 2f-3, 14 ; dorsal with 8 

 branched rays ; length of head 3-3£- times 

 in total length 106. B. rapax, Stdr., p. 119. 



Sc. 32-35 ^S 3-3*, 12-14 ; dorsal with 7 

 branched rays ; length of head 3*-3§ 

 times in total length 107. B. tlrikensis, Blgr., p. 120. 



Sc. 35 % 3, 16 ; dorsal with 7 branched rays; 



length of head 4 times in total length ; [p. 120. 



lateral line incomplete 108. B. pleurogramma, Blgr., 



