376 



SILUBIDJE. 



of the anal fin or a little beyond. Caudal fin very deeply forked, the upper lobe the 

 longer and often terminating in a filament. Caudal peduncle nearly as long as deep. 



Grey above, white below ; rayed fins light, with a more or less distinct dark blotch on 

 the dorsal near its base, and a dark band along each lobe of the caudal; barbels white. 



Total length 380 millimetres. 



Measurements (in millimetres). 



Total length (without caudal) 



Greatest depth 



Length of head 



Width of head 



Length of snout 



Diameter of eye 



Interorbital width 



Width of mouth 



Maxillary barbel 



Outer mandibular barbel 

 Inner mandibular barbel 



Length of dorsal spine 



Basal length of dorsal fin ... . 



„ „ adipose fin . . 



Greatest depth of adipose fin 



Length of pectoral spine . . . . 



1. 



2. 



3. 



4. 



> 



345 



300 



160 



125 



75 



112 



83 



39 



33 



17 



100 



90 



51 



40 



24 



69 



58 



28 



25 



15 



5Q 



50 



28 



24 



14 



15 



12 



9 



8 



5 



50 



41 



21 



19 



10 



! 



20 



15 



10 



8 



5 



46 



46 



21 



20 



11 



38 



28 



17 



18 



10 



20 



16 



11 



9 



7 



102 



93 



9 



43 



20 



h2 



48 



22 



18 



11 



131 



100 



52 



39 ; 



21 



38 



24 



10 



9 



5 



80 



70 



9 



33 



18 



1. L. No. — Loat. 



2, 4. Wad Medine.— Loat. 



3, 5. Khartum.— Petherick. (Types.) 



Originally described from two specimens obtained at Khartum by Consul Petherick, 

 this very distinct species has been rediscovered in the Bine and White Niles by 

 Mr. Loat. I have before me seven specimens : — ■ 



2 Khartum. — Petherick, 1861. (Types.) 



4 Wad Medine, Blue Nile.— Loat, 6.10.01. 



1 Mouth o£ Lake lS T o, White Nile.— Loat, 3.2.01. 



