SILURANODON. 



299 



beyond base of ventral, its spine feeble, smooth, without any serration, 

 and about f to | the length of the fin. Ventral f to f length of head, 

 inserted below dorsal, or just behind vertical of its base. Caudal 

 notched, with rounded or obtusely pointed lobes, upper a little longer 

 than lower. Coloration silvery; bead and a dorsal band dull greyish 

 brown, finely speckled with blackish, this band extending on the upper 

 lobe of the caudal fin ; a red spot, shot with gold, on the gill-cover ; a 



Fig. 240. 



Siluranodon auritus. 

 Near Cairo (F. N.). f 



more or less distinct dark blotch behind the shoulder ; sometimes a dark 

 streak above the lateral line ; dorsal fin often blackish ; caudal fin often 

 edged with blackish ; anal fin often speckled with blackish, especially 

 on the lower half. 



Total length 175 millim. 



Lower Nile to White Nile. — Type in Paris Museum. 



L. Loat, Esq. (C). 



1. Ad. 





Damietta Nile, downstream side 

 of barrage. 



2-13. Ad. 





Rosetta Nile, downstream side 

 of barrage. 



14. Skel. 





)1 5> 



15-16. Ad. 





Near Cairo. 



17. Ad. 





Luxor. 



18. Hot. 





Near Luxor. 



l l J. Hgr. 





Between Assiut and Abu Tig. 



20-27. Ad. 



& hgr. 



Assuan. 



28-33. Hgr 





Gharb-el-Aisli, White Nile. 



34-43. Hgr 



• & )"g- 



Fashoda, „ 



44-46. Hgr 





Mouth of L. No, „ 



Dr. J. C. Mitchell (P.). 

 L. Loat, Esq. (C). 



