BAGKUS. 325 



Delhez on the Senegal, the sides, the belly, the dorsal and paired fins may be yellow 

 and the anal and caudal fins red ; iris yellow. Dark dots are sometimes scattered on 

 the back, the adipose fin, and the caudal fin. 



The largest specimen examined by me measures 650 millimetres, but the species is 

 said to grow to nearly 1 metre. 



Bagrus bayad is known from the Nile, the Blue Nile, and the White Nile ot 

 Lake Albert, also from the Chad Basin, the Senegal, and the Niger. According 

 to Dr. J. C. Mitchell, it avoids salt water, being found only in the fresh portions fo 

 Lake Menzaleh after the high Nile. Mr. Loat adds that a few are taken in Lakes 

 Borollos and Edkou, but almost exclusively during Nile time. The specimens from 

 the Pangani River referred to this species by Gunther and Play fair * have been 

 named by me Bagrus orientalist . 



List of specimens examined : — 



1 Lake Menzaleh.— Loat, 25.4.99. 



2 Near Grhet-el-Nassara, in a freshwater pool.— Loat, 11.6.99. 



5 Nile near Samannud. — Loat, 12-14.7.99. 



1 Bosetta branch of Nile, downstream side of barrage. — Loat, 31.7.99. 



34 Nile near Cairo, upstream side of barrage. — Loat, 4.8.99. 



1 Nile near Cairo, bought in Old Cairo Fish Bazar. — Loat, 27.3.99. 



2 Nile near Cairo, bought in Boulak Fish Bazar. — Loat, 19-20.3.99. 

 2 Nile close to Cairo. — Loat, 15.3.99. 



2 Cairo.— Petherick, 1860. 



1 Wasta.— Loat, 17.9.99. 



12 Beni Souef.— Loat, 12.8-2.9.99. 



2 Biba.— Loat, 28.8.99. 



1 Between Assiut and Abu Tig. — Loat, 1.12.99. 



1 Nagadah.— Loat, 22.12.99. 



8 At regulators near Luxor. — Loat, 3-10.11.00. 



20 Between Luxor and Assuan. — Loat, 9-10.00. 



1 Assuan. — Riippell, 1822. 



23 Assuan.— Loat, 4-30.9.00. 



1 Island of Arko. — Loat, 16.4.00. 



6 Khartum. — Petherick, 1861. 



1 Wad Medine, Blue Nile.— Loat, 14.10.01. 



1 Kaka, White Nile.- Loat, 15.1.01. 



1 Polkom, Baro R. (Sobat).— Zaphiro, 4.04, 



2 Fashoda.— Loat, 20.3.01. 



1 Bahr Zeraf.— Capt. Flower, 25.3.00. 



3 Mouth of Lake No.— Loat, 28.1-3.2.01. 



* Fishes of Zanzibar, p. 114. 



f Ann. Mus. Congo, Zool. ii. 1902, p. 37. 



