150 



ADDENDA, VOL. I. 



postorbital and spiracular shields ; suboperculum not or but slightly 

 larger than eye. Dorsal with XIII to XV spines, all strongly over- 

 lapping when folded. Anal 12-13. Pectoral reaching beyond vertical 

 of first dorsal spine. 55-56 scales in a longitudinal series, 11-13 

 between occiput and first dorsal spine, 42-46 round middle of body. 



Fie. 101. 



Polypterus ansorgii. 

 Type. f. 



Greyish brown above, with 7 or 8 black bars across the back, and a 

 series of 11 to 13 squarish black spots along each side, with smaller and 

 more irregular ones below ; fins spotted and mottled with blackish. 



Total length 205 millim. 



Corbal River, Portuguese Guinea. 

 1. One of the types. Tchitoli, Corbal R. Dr. W. J. Ansorge (P.). 



4. POLYPTERUS ENDLICHERI, Heck. 

 Add:— 



17-18. Yg. Anambra R., Lower Niger. W. J. Crocombe, Esq. (P.). 



8. POLYPTERUS SENEGALUS, Guv. 

 Pellegr. Poiss. Bass. Tchad, p. 47, pi. ii. fig. 1 (1914). 



Add:— 

 98-107. Yg. Anambra R., Lower Niger. W. J. Crocombe, Esq. (P.). 



Add:— 



11-12. Yg. 

 13. Yg. 



14. kA. 



9. POLYPTERUS PALMAS, Ayres. 



R. Corbal, Portug. Guinea. 

 Sierra Leone. 



Pujermn, Sierra Leone. 



Dr. W; J. Ansorge (C). 

 Liverpool School of Trop. 



Medicine (P.). 

 N. TV. Thomas, Esq. (P.). 



