CHRTS1CHTIIYS. 327 



Total length 220 millim. 



Lower Nile to Bahr-el-Gebel ; Chad Basin. — Type in Paris 

 Museum. 



1. Ad., typo of Lower Nile. Dr. Ruppell (C.). 



('. macrons. 

 2-3. Ad. Near Damictta, in fresh L. Loat, Esq. (C). 



water. 

 4-9. Hgr. Near Ghet-el-Nassara, L. 



Menzaleh,in fresh water. 

 10-19. Ad. & hgr. Nile near Samannud. ., 



20. Skel. 

 21-22. Yg. Damietta Nile, upstream ,, 



side of barrage. 

 23-25. Ad. Cairo. 



26, 27-30. Ad. & Near Cairo. Capt. S. Flower (P.). 



yg- 



31-38. Ad. & hgr. Beni Souef. L. Loat, Esq. (C). 



39-40. Ad. Lahnn, Bahr Yusuf, 



Fayum. 

 41-42. Hgr. Bahr Selab, Fayum. 



43-47. Yg. Near Luxor. 



48. Yg. Between Luxor and Assuan. „ 



49-50. Hgr. Wady Haifa. 



51-52. Yg. Kosheh, Nubia. 



53-57. Ad. & hgr., Khartum. J. Petberick, Esq. (C.;. 



types of C. auratus. 



58. Skel. Khartum. „ 



59. Hgr. Nur-el-Daim, White Nile. L. Loat, Esq. (('.). 



60. Ad. Between Khartum and Mr. P. C. Zapliiro (C.) ; 



Sobat. W.N. MacMillan, Esq. (P.). 



61. 02-65. Yg. Gondokoro. L. Loat, Esq. (C). 



66. Ad. Fort Lamy, Shari R. Capt. G. B. Gosling (P.). 



8. CHEYSICHTHYS RUEPPELLI. 

 Chrysichtliys auratus (non Geoffr.), Giinth. Cat. Fish. v. p. 71 (1864), and 



Petherick's Trav. ii. p. 229 (1869). 

 Chrysiclithys auratus, part., Giinth. Proc. Zool. Soc. 1899, p. 718, fig. 1. 

 Chrysichtliys rueppelli, Bouleng. Fish. Nile, p. 337, pi. lx. fig. 2 (1907). 



Depth of body 4 to i\ times in total length, length of head o\ to 

 3^ times. Head moderately depressed, 1^- to 1^ times as long as broad, 

 its upper surface smooth, covered with thick skin ; occipital process 

 narrow, extending to the small interneural shield ; snout broadly 



