LABEO. 331 



1-4. Ad. & hgr. Lower Nile. S. S. Allen, Esq. (P.). 



^~^- ^'^- Near Samannud, Damietta L. Loat, Esq. (C). 

 Nile. 



10-12. Yg. Rosetfa Nile, near Barrage. 



13-U. Ad. Near Cairo. 



15. Hgr. Wasta, Lower Nile. [, 



lG-23. Yg. Near Luxor. 



24. Ad. Assuan. 



25-27. Ad. Korosko, Upper Nile. 



28-37. Ad. & hgr. Wady Haifa. ", 



38- Hgr. Kosheh, U|)per Nile. „ 



^^- M. Near H;innek, Third Oataiach 



^0. Ad. Khartum. J. Petherick, Esq. (C). 



41. Skel. 



42. Yg. Wad Medine, Blue Nile. L, Loat, Esq. (C ). 



43. 44-63. Ad. & yg. Rosaires, 



64-(J6. Ad. & hgr. Didessa R. (Blue Nile), Gumn, Mr. P. 0. Zaphiro (C.) ; 



1500 ft. W.N. McMillan, Esq. (P.). 



67-6«. Ad. Juju R., affluent oE Didessa Mr. P. 0. Zaphiro (C.) ; 



R., Guma, 2000 ft. W. N. McMillan, Esq. (P.). 



25. LABEO CYLINDRICUS. 

 Peters, Mon. Berl. Ac. 1852, p. 684, and Reise Mcssamb. iv. p. 47, pi. x. fig. 1 



(1868) ; Bouleng. Ann. & Mag. N. H. (7) xii. 1903, p. 361, Proc. Zool. Soc. 



1903, ii. p. 330, and Tr. Zool. Soc. xvii. 1906, p. 548. 

 Tylognatlms cantini, Sauv. Bull. Soc. Philom. (7) vi. 1882, p. 175 ; Vincig. Ann. 



Mus. Genova, (2) xv. 1895, p. 50, & xix. 1898, p. 259. 

 Tylognathus montunus, Giinth. Proc. Zool. Soc. 1889, p. 71, pi. viii. fig. B. 

 Labeo forshalii, part., PfefF. Thierw. O.-Afr., Fische, p. 49 (1896) ; Hilgend. Zool. 



Jahrh., Syst. xxii. 1905, p. 413. 

 Laheo montanus, PfefF. t. c. p. 52. 

 ? Labeo mesops (non Giinth.), Vincig. op. cit. (2) xvii. 1897, p. 361. 



Very closely allied to and barely separable from L./orskalii. 



Body feebly compressed, 4 to 4f times in total length. Head 4 to 

 4f times in total length, its width f to f its length, as in L. forskalii, but 

 eye larger, 4 to 7 times in length of head. Dorsal III 8-10, longest ray 

 usually longer, often much longer, than head, sometimes as much as twice 

 as long. Anal III 5. Scales 35-39 ^Eyl, 3-4 between lateral line and 

 root of ventral, 16-18 round caudal peduncle. Dark olive above and on 

 the sides, white beneath; caudal often with the upper and lower edges 

 dark. 



Total length 400 millim. 



