210 



CHAEACIN1D.E. 



under the dorsal and extending on the median rays of the caudal ; dorsal, 

 caudal, and ventral fins lemon-yellow. 



Fig. 162. 



Alestes opisthotcenia. 

 Type (P. Z. S. 1903). 



Total length 150 milliro. 

 South Cameroon. 



1-4. Types. 

 5-7. Ad. & hgr. 



8. Skel. 



9. Ad. 

 10-12. Ad. 



Kribi River. 



Mvile River. 



Ja River at Bitye. 



G. L. Bates, Esq. (C). 



20. ALESTES POPTiE. 

 Pellegr. Bull. Mas. Paris, 1906, p. 367. 



Depth of body 3 times in total length, length of head 3f times. 

 Head a little longer than deep, its length to occiput equal to its width ; 

 snout a little longer than eye, 3-^ times in length of head ; adipose 

 eyelid rudimentary ; interorbital width •§ length of head ; maxillary not 

 extending to below anterior border of eye; 16 teeth (-g) in upper jaw; 

 length of lower border of second suborbital equal to diameter of eye. 

 Gill-rakers rather short, 15 on lower part of anterior arch. Dorsal II 8, 

 originating above last rays of ventral, nearer occiput than caudal. 

 Adipose fin absent in the unique specimen. Anal III 10. Pectoral 

 not reaching ventral. Caudal peduncle about as long as deep. Scales 



4' 



22 of, l-o between lateral line and root of ventral. Brownish above, 

 golden yellow on the sides and beneath, each scale edged with purplish ; 

 fin greyish. 



Total length 190 millim. 



Congo. — Type in Paris Museum. 



