IITDROCYON. 



181 



lateral line and scaly process at base of ventral. Back grey, brown, or 

 olive-green, sides and belly silvery white ; more or less distinct longitu- 

 dinal rows of blackish spots, often confluent into streaks, run along the 

 series of scales above the lateral line, and, exceptionally, also along 

 the series bordering the lateral line below ; these spots or streaks 

 entirely absent in very young specimens ; dorsal fin and upper lobe of 



rig. 139. 



Hydrocyon forskalii. 

 Upper Nile (F. N.). 



caudal yellowish or grey, often blackish towards the end ; adipose fin 

 grey or whitish, rarely with a black spot ; ventral and anal, sometimes 

 also pectorals, tinged with pink or pale orange ; lower lobe of caudal 

 bright red. 



Total length 450 millim. — Grows to nearly 1 metre. 



Lower Nile to Blue Nile and Lake Albert; Lakes Rudolf and 

 Gandjule (Margherita) ; Senegal, Niger.— Type in Paris Museum. 



1. Hgr. 



2. Hgr. 



3. Skel. 



4. Hgr. 



5. Hgr. 



6. 7, 8. Ad., hgr., 



&yg. 

 9. Skel. 

 10. Ad. 

 11-16. Hgr. & yg. 



17. Ad. 



18. Hgr. 

 10-20. Hgr. 



21-30. Hgr. & yg. 

 31-30. Yg. 

 40-43. Hgr. 



Egypt. 

 Lower Nile. 



Lake Edkou. 

 Daniietta Nile. 

 Near Cairo. 



Wasta, Lower Nile. 

 Belli Soiief, Lower Nile. 

 Sanhur, near Beni Souef. 

 Bahr Selah, Fayum. 

 Between Assiut and Abu Tig, 



Lower Nile. 

 Near Luxor. 



Between Luxor and Assuan. 

 Assuan. 



Dr. Ruppell (C). 

 J. Petherick, Esq. (C). 

 S. S. Allen, Esq. (P.). 

 L. Loat, Esq. (C). 



