118 BULLETIN 188, UNITED STATES NATIONAL MUSEUM 



lOa. Lips fringed ; scales in lateral line 37 or 38 ; branched dorsal 

 rays 8 ; last simple dorsal ray strongly ossified and denticu- 



iated ; rostral and maxillary barbels Cosmocliilus 



10&. Lips entire or only upper lip crenulated or fringed. 



11a. Mouth large, maxillary extending to or beyond vertical 

 from anterior margin of eye. 

 12a. Pharyngeal teeth triserial; head of moderate size, 2 to 

 2.5 in body length ; a pair of maxillary barbels ; gill 

 rakers short, wide-spaced, about 12 on first arch ; 

 branched dorsal rays 8 ; last simple dorsal ray osseous 

 and finely denticulated; size medium (to 70 cm.). 



Kampala 

 126. Pharyngeal teeth uniserial, 4 on each side; head very 

 large, 1.5 or less in body length; no barbels; gill 

 rakers long, close-set, very numerous (95 to 110 on 

 first arch) ; branched dorsal rays 9; last simple 

 dorsal ray nonosseous and smooth; size very large 



(to 2 m.) Catlocarpio 



116. Mouth smaller, maxillary not extending to vertical from 

 anterior margin of eye. 

 13a. A groove posterior to lower lip. 

 14a. Lower lip with an uninterrupted posterior groove con- 

 tinuous around corners of mouth. 

 15a. Lateral line complete ; last simple dorsal ray 

 ossified. 

 16a. Median part of lower lip developed or not as a lobe ; 

 4 barbels; last simple dorsal ray nondenticu- 

 lated ; head with no parallel lines of pores 



in groups Tor 



106. Median part of lower lip not developed as a special 

 lobe; barbels 4, 2, or none; last simple dorsal 

 ray strongly denticulated ; head with numerous 

 lines of pores mostly parallel in groups. 



Cyclocheilichthys 



156. Lateral line incomplete, confined to 6 or 7 anterior 



scales ; last simple dorsal ray nonosseous ; no 



barbels ; bead with numerous lines of pores mostly 



parallel in groups Oreichthys 



146. Lower lip with posterior groove interrupted in middle. 



17a. Pharyngeal teeth uniserial, 4 on each side ; only 



maxillary barbels ; last simple dorsal ray osseous 



and nondenticulated ; branched dorsal rays 9 ; 



branched anal rays 5 ; body with dark longitudinal 



stripes Probarbus 



176. Pharyngeal teeth biserial ; mouth very large ; maxil- 

 lary extending beyond vertical from posterior 

 border of eye; lower jaw with a postsymphyseal 

 knob ; third suborbital bone large and entirely 

 behind eye ; no barbels ; last simple dorsal ray 

 osseous and nondenticulated ; scales in lateral line 

 88 to 94; branched dorsal rays 7 or 8; branched 

 anal rays 10 Eaiamas 



