ID CYPRINID-E. 



B. Last simple dorsal ray more or less enlarged, ossified at least in its basal 



half, forming a more or less strong spine; anal with 6 (rarely 7) 

 branched rays. 



1. Lower jaw with rounded or blunt edge. 

 5i_6-i 



Sc. 32-35 -Tir 5 , 2^-3; spine of dorsal very 



°2 



strong, at least § length of head, usually 



as long as head ; posterior barbel li-2 



diameters of eye in adult ; anal not reaching 



caudal 67. B. harterti, Gthr., p. 81. 



Sc. 32-35 rrgi, 2^-3: spine of dorsal moderately 



strong, § length of head ; posterior barbel 



§— ^ diameter of eye ; anal not quite reach- 

 ing caudal 68. B. paytonii, Blgr., p. 82. 



51 

 Sc. 31-35 jf, 2-2^ ; spine of dorsal very strong, 



|-| length of head ; posterior barbel |-1 



diameter of eye ; anal reaching caudal . . 69. B. rothscluldi, G-rhr., p. 83. 



Sc. 31-33 ~, 2-2^ ; spine of dorsal strong, f-f 

 length of head ; posterior barbel 1-1^ dia- 

 meters of eye ; anal reaching caudal . . . 70. B. rige/enbacM, Gthr., p. 84. 



Sc. 30-33 jf-rf, 2^-3 ; spine of dorsal rather 



^2 °2 



feeble, ^-§ length of head ; posterior barbel 



f-1 diameter of eye ; anal reaching caudal . 71. B . fritschii, Gthr., p. 85. 



2. Lower jaw with sharp edge ; spine of dorsal feeble, i-| length of head ; 



posterior barbel shorter than eye. 



Sc. 32-35 gf, 2^-3 ; anal reaching caudal . . 72. B. ivaldoi, Blgr., p. 86. 



Sc. 35-36 ^f, 2J? ; anal not reaching caudal . . 73. B. atlanticus, Blgr., p. 87. 



C. Last simple ray of dorsal not enlarged, or segmented down to its basal 



third ; anal with 5 branched rays. 

 1. Snout projecting more or less beyond mouth. 



a. Dorsal originating above ventral ; posterior barbel as long as eye, or 



slightly longer or shorter. 

 Sc. 42 sf, 4, 14; lower lip continuous across chin, 



produced into a long triangular lobe . . .74. B. gilchrisii, Blgr., p. ^. 

 Sc. 33-36 - = kr ? , -\, 14-16 ; lower lip continuous 



across chin 75. B. howlceri, Blgr., p. 89. 



Sc. 34-37 ^r', 2£, 16 ; lower lip not extending 



across chin ; lower jaw with a sharp edge . 76. B. aureus, Cope, p. 90. 



b. Dorsal originating in advance of ventral. 



a. Posterior barbel as long as eve or slightly longer. 



U fi 



Sc. 34-38 ^p, 2^-3, 12-14 ; .dorsal will 



oi 



9 



branched rays : lower lip not extending 



