302 CYPEINID.E. 



B. Inner surface o£ lips bearing transverse plicse formed by series of papillse. 



1. Eyes perfectly lateral, visible from above and from below, or nearly 



perfectly lateral. 



a. Dorsal fin with straight or convex upper edge (or slightly concave in 



the young). 



a. No barbel. 



D. Ill 12-13 ; Sc. 36-38 34t, 4, 16 ; caudal 



peduncle nearly twice as deep as long . . 10. L. velifer, Blgr., p. 315. 



y8. A small barbel. 

 51 

 D. Ill 12-13; Sc. 37 gf, 4, 16; caudul peduncle 



much deeper than long 11. L. longipinnis, Blgr., p. 316. 



D. Ill 11-U; Sc. 36-40 M, 4-51, 16-18 ; 

 caudal peduncle as long as deep or a little 

 deeper than long 12. Z. couhie, Riipp., p. 317. 



D. IV 11 ; Sc. 38-39 ^, U, 16 ; caudal 



peduncle as long as deep 13. Z. eongoro, Peter?, p. 319. 



h. Dorsal with concave upper edge. 



a. Depth of body not 4 times in total length. 



D. Ill 11-12; Sc. 39-40 gi^, 5, 16-18; 



diameter of eye 2-|-3 times in interorbital 



width 14. X. neumanni, Blgr., p. 320. 



D. Ill 10-11 ; Sc. 35-37 ^^1*, 4, 16 ; diameter 



'2 



of eye not twice in interorbital width . . 15. L. gi'egorii, Gthr., p. 321. 

 /3. Depth of body at least 4 times in total length. 

 D. Ill 10 ; Sc. 36-39 % 4-5, 16-20 ; diameter 



of eye 2\ times in interorbital width . . 16. L. darlingl, Blgr., p. 321. 

 D. Ill 9-10 ; Sc. 38-39 ^, 4^-5, 16-18 ; 

 diameter of eye at least 3 times in inter- 

 orbital width 17. i. vidorianus, Blgr., p. 322. 



2. Eyes supero-lateral, entirely or nearly entirely visible from above. 



a. Dorsal with straight or convex or slightly concave upper edge ; 



caudal peduncle not longer than deep. r 323 



D. IV 10 ; Sc. 36 |, 4, 16 18. L. fuelleborni, Hilg. & Papp., 



D. III-IV 9-11 ; Sc. 32-34 |, 3, 12 . . .19. L. hraehypoma, Gthr., p. 324. 

 D. Ill 10 ; Sc. 38-39 fQ, 4, 16-18 . . .20. L. macrostoma, Blgr., p. 325. 



b. Dorsal with concave upper edge, with 11 or 12 branched rays; caudal 



peduncle as long as deep. 

 Sc. 35-38 71, 4, 16 21. i. cydorKynchns, Blgr., p. 326. 



c. Dorsal with concave upper edge, with 8-11 branched ravs. 

 a. 20-22 scales round caudal peduncle. 



D. Ill 11; Sc. 39^^,5,20; caudal peduncle 



deeper than long 22. L. falcipinms,'B]gr., ^. Z21 



