BARBUS. 201 



b. A subtriangular dermal lobe above the upper jaw ; spine of the dorsal fin shorter than 

 the head in the adult. 

 Lips not produced into long median lobes, but snout with a triangular 



dermal flap 10. B. degeni, Blgr. 



Both lips produced into long subtriangular dermal lobes .... 11. B. nedgia, Riipp. 

 B. Lower lip not continuous across the chin. 



1. 2 or 3 series o£ scales between lateral line and ventral fin, 12 or 14 round caudal peduncle. 



a. Mouth inferior ; interorbital width twice and two-fifths to three and one-fourth times 



in length of head. 

 a. Mouth evenly curved. 

 Depth of body twice and two-thirds to three times in total length, 

 length of head three and three-fourths to four and a half times ; 



snout rounded, not twice as long as eye 12. B. surkis, Riipp. 



Depth of body three and a half to four times in total length ; length 

 of head three and three-fourths to four and a half times ; snout 



rounded, not twice as long as eye 13. B. intermedins, Riipp. 



Depth of body three and two-thirds to four and a half times in total 

 lengthy length of head four to four and a half times ; snout 



rather pointed, nearly twice as long as eye in adult .... 14. B. fergussonii, Blgr. 

 Depth of body three and one-third times in total length, length of head 



three and two-thirds times; ventral anterior to origin of dorsal . 15. B. eduardianus, Blgr. 

 ft. Mouth forming a broken arch, a feebly curved trans- 

 verse line in front ; lips feebly developed ; jaws 

 with a blunt keel, covered by a thin horny sheath . 16. B. plagiostomus, Blgr. 



b. Mouth terminal. 



Interorbital width twice and three-fourths to three times in length of 



head ; posterior barbel one and one-fifth to one and two- fifths 



diameters of eye; depth of body exceeding length of head . . 17. B. platystomus, Blgr. 

 Interorbital width four times in length of head ; posterior barbel 



one and a half diameters of eye ; depth of body not exceeding 



length of head 18. B. zaphiri, Blgr. — - 



Interorbital width three and two-fifths to four times in length of 



head ; posterior barbel not longer than eye ; depth of body not 



exceeding length of head 19. B. gorguari, Hiipp. — 



2. 4 series of scales between lateral line and ventral fin, 16 or 



18 round caudal peduncle 20. B nummifer, Blgr. 



II. Dorsal fin with a very strong, bony, posteriorly serrated spine and 7 branched rays ; anal 

 with 5 branched rays ; scales large ; barbels four. 

 A. 35 to 39 scales in the lateral line series. 

 Ventral fins in front of vertical of dorsal ; scales 39 -j~ ; lateral 



line complete 21. B. macropristis, Blgr. 



Ventral fins below anterior rays of dorsal ; scales 35 ^f ; lateral line 



incomplete 22. B. pleurogram?na, Blgr. 



2d 



