208 



CHAEACINIDJi. 



92. Hgr. Yo R., Lake Chad. 



93-94. Two of the Senegal. 



types o£ A. senegalensis. 

 95-99, 100-101. Hgr. St. Louis, SenegaL 



102-105, 106-113. 



Hgr. & yg. 

 114. Ad. 

 115-119. Ad. 

 120. Ad. 



Kaedi, „ 



Matam, „ 



Gambia. 



Nyankoma, Gold Coast. 



Mureji, Upper Niger. 

 Jebba, ,, 



121. Ad. 



122. Hgr. 

 123-128. Hgr. &yg. 



129-132. Hgr.&yg. Agberi, Lower Niger 

 133-134. Yg., types Niger. 

 of A. leuciscus. 



135. Ad. 



136. Hgr. 



137. Ad. 



138. Ysr. 



139. Ad. 



Benue R., N. of Ibi. 

 Warri, Old Calabar. 

 Eg "Wanga, „ 

 Old Calabar. 



Meme R., Cameroon. 



Capt. G. B. Gosling (P.). 



M. P. Delhez (C). 



J. S. Budgett, Esq. (P.). 

 K. B. N. Walker, Esq. (C.) ; 



Dr. A. Giinther (P.). 

 J. S. Budgett, Esq. (P.). 

 Capt. G. F. Abadie (P.). 

 Dr. C. Christy (P.). 

 Dr. W. J. Ansorge (C). 

 Mr. J. T. Dalton (C). 



PLL.Norton Traill, Esq. (C). 

 Miss Kingsley (C). 



Dr. Jackson (C.) ; 



Hon. W. Rothschild (P.). 

 G. Linnell (( \) ; 



Prof. E. Lonnberg (P.). 



13. ALESTES AFFINIS. 

 GLinth. Proc. Zool. Soc. 1894, p. 90 ; Vincig. Ann. Mus. Geneva, (2) xvii. 1896, 



p. 28, and 1897, p. 355. 

 Alestes imberi (non Peters), Vincig. op. cit. xv. 1895, p. 28. 

 Brachyalestes ajinis, Fowler, Proc. Ac. Philad. 1906, p. 445, fig. 



Depth of body 3 to S^ times in total length, length of head 3f to 4 

 times. Head If to 2 times as long as broad, as long as deep or slightly 

 longer ; snout rounded, not longer than eye, which is lateral and 3 to 

 3^ times in length of head ; interorbital region feebly convex, its width 

 2^ to 2^ times in length of head ; maxillary not quite reaching to below 

 antei-ior border of eye; 16 teeth (y-) in upper jaw, 10 (o) in lower; 

 lower border of second suborbital longer than eye. Gill-rakers mode- 

 rately long, lH-20 on lower part of anterior arch. Dorsal II 8, 

 originating behind vertical of base of ventral, at equal distance from eye 

 or from nostril and from caudal, longest ray a little shorter than head. 

 Anal III 16-18. Pectoral a little shorter than head, reaching ventral. 



