1G8 BULLETIN 18 8, UNITED STATES NATIONAL MUSEUM 



13&. Scales in lateral line 23 to 28; scales in transverse series to base of 

 ventral fin 4.5 or 5-1-2.5 or 3 ; predorsal scales 8 to 10. 

 loa. Scales around caudal peduncle 14 ; rostral barbels about equal to 

 eye, maxillary barbels somewhat longer ; coloration golden, each 

 scale of back with a dark brown base ; ventral fins orange ; pec- 

 toral fins bright yellow daruphani 



15&. Scales around caudal peduncle 12 ; rostral barbels longer than eye ; 

 maxillary barbels twice diameter of eye or less ; coloration silvery, 

 body with a black spot on back at base of dorsal fin, a black spot 



on caudal peduncle, young otherwise spotted binotatus 



15c. Scales around caudal peduncle 12; rostral barbels slightly shorter 



than maxillary, which are equal to or longer than eye. 



16a. Caudal lobes much longer than head; lateral line with tubules 



deficient on a few anterior scales; length of caudal peduncle 



1.16 to 1.5 times its depth ; scales of back with dark brown edges 



forming a network vernayi 



16&. Caudal lobes equal to head ; lateral line with tubules on all scales ; 

 length of caudal peduncle equal to its depth ; scales of back with 



dark brown basal pockets beasleyi 



12?>. About 29 to 33 scales in lateral line ; scale;^ between midline t>f back and 



lateral line 4.5 to 6.5. 



17a. Ajial rays iii, 5 (exceptionally lii, 6 or iii, 7) ; barbels well developed. 



18a. Scales around caudal peduncle 12; scales in transverse series to base 



of ventral fin 6-1-3 ; predorsal scales 12 ; a large black spot on 



dorsal fin f oxi 



18&. Scales around caudal peduncle 14 ; scales in transverse series to base 

 of ventral fin 5.5-1-2.5 or 3 ; predorsal scales 10 to 12 ; lateral line 



complete, incomplete, or absent ; coloration plain huguenini 



18c. Scales around caudal peduncle 16. 

 19a. Scales above lateral line 4.5 ; scales between lateral line and base 

 of ventral fin 3 or 3.5 ; predorsal scales 10 or 11 ; snout short, 

 1.3 in eye ; maxillary extending under anterior edge of eye ; 

 maxillary barbel 0.8 eye ; caudal fin longer than head ; a jet 

 black spade-shaped spot on caudal peduncle ; a blackish stripe 



from upper end of gill opening to base of caudal fin sim.us 



19&. Scales above lateral line 5.5 to 6.5 ; scales between lateral line and 



base of ventral fin 8.5 to 4.5 ; predor.sal scales 10 to 13 ; no black 



spot on caudal peduncle ; no black stripe from upper end of gill 



opening to base of caudal fin. 



20a. Eyes nearer to dorsal profile than to ventral profile of head. 



21a. Snout shorter than eye ; serrations on last simple dorsal ray 



about 20 ; all fins red bramoides 



216. Snout longer than eye ; serrations on last simple dorsal ray 

 12 to 15 ; fins whitish, each caudal lobe may have a black 



horizontal edge sarana 



20&. Eyes nearer to ventral profile than to dorsal profile of head ; 

 snout shorter than eye; serrations on last simple dorsal 



ray 12 jolaniarki 



17&. Anal rays iii, 6; barbels minute or rudimentary, coloration silvery. 



gonicnotua 

 12c. About 32 to 38 scales in lateral line ; annl rays iii, 5. 

 22a. Scales between midline of back and lateral line 8 or 9. 



23a. Scales in lateral line 32; predorsal scales 9; depth 1.8 to 2.12 in 

 standard length; maxillary barbel equal to or shorter than eye; 



