30G 



81LTTEIDJE. 



rather long, widely set, 11 to 16 on lower part oi anterior arch. 

 Dorsal I 9-11 (usually 10), last ray behind vertical of inner ray of 

 ventral ; spine smooth, moderately strong, % to f length of head ; 

 anterior soft rays more or less produced into tilaments. Adipose dorsal 

 3^ to 5 times as long as deep, about twice as long as rayed dorsal, 

 from which it is narrowly separated. Anal 13-15 (9-10 branched). 



Fie. 24-1. 



Bdi/rns bai/acl. 

 Near Cairo (F. N.). I. 



Pectoral f 



to -| length of head, its spine moderately strong, feebly 

 serrated on inner side. Ventral nearly equally distant from end of 

 snout and from caudal. Caudal deeply forked, each lobe produced into 

 a long filament. Caudal peduncle a little longer than deep. Pale grey 

 to dark brown above, white beneath ; fins yellow, caudal sometimes red ; 

 dark dots sometimes scattered on body and fins. 

 Total length 650 millim. 

 Nile System, Chad Basin, Senegal, Niger. 



L. Loat, Esq. (C). 



Dr. Riippell (C). 



J. Petherick, Esq. (C). 



L. Loat, Esq. (C). 



1. 



Yg- 



L. Menzaleh. 



2. 



Hgr. 



Near Ghet-el-Nassara, in fresh 



water. 



3. 



Skel. 



Nile. 



4. 



Skel. 



55 



5. 



Skel. 



>J 



6- 



■7. Hgr. 



Nile near Samannud. 



8. 



Ad. 



Rosetta Nile, downstream side 

 of barrage. 



