POLYPTJEKUS. 7 



markings becoming more indistinct or disappearing in the adult ; a few 

 scattered black spots sometimes present ; paired fins with more or less 

 distinct transverse streaks or series of spots, the other fins without 

 spots ; belly yellow. 



Total length 720 millim. 



Nile, Lake Rudolf, Chad Basin. — Types in Paris Museum. 



Fte. a. 



Polypterus bicliir. 

 Kile Delta (F. N.j. {. 



1-3. Yg. 

 4-5. Ad. 



6: Ad., stffd. 



7. Hor. 



8. Ad. 



9-12. Hot. & yg. 



13-14. Yg. 

 15-24. Ad. & hgr. 



25. Hgr., skel. 



26. Ad. 



27. Ad. 



28. Ad. 



29. 30. Ad., stffd. 



Near Damietta. Dr. J. G. Mitchell (P.). 



Mansurah, Damielta Nile. N. R. Harrington, Esq., 



and Dr. Hunt (E.). 

 Cairo. Dr. Riippell (('.). 



Near Cairo. L. Loat, Esq. (0.). 



Kawa, White Nile. „ 



Goz abn Gnmali, White Nile. „ 



Grharh-el-Aish, „ „ 



Fashoda, „ ,, 



Near Kerro, ,, 



Mouth ot Lid<e No, „ 

 Bahr-el-Gebel. 



Nile. 



Capt. S. Flower (P.). 



2. POLYPTERUS LAPRADII. 



Steind. Siteb. Ak. Wien, lix. i. 1869, p. 103, pi. i. figs. 1 & 2, and pi. ii. figs. 1 & 2 ; 



Boulong. Ann. & Mag. N. H. (7) ii. 1898, p. 418 ; Budgett, Proc. Cambr. 



Philos. Soe. x. 1900, p. 236 ; Bouleng. Proe. Zool. Soc. 1902, i. p. 1*3, pi. x. 



figs. 1 & 2. 



Head rather strongly depressed, If to 2| times as long as broad, its 



