HETEEOBEANCHTTS. 



275 



Dorsal 29-34, its distance from occipital process \ to ^ length of head ; 

 adipose dorsal as long as or a little shorter and lower than rayed dorsal, 

 commencing immediately behind or at a short distance from the latter. 

 Anal 44-54, extending, like the adipose dorsal, to the base of the 

 caudal fin. Pectoral f to ^ length of head, the spine feebly serrated 

 on the outer border and measuring \ (young) to f- the length of the 

 fin. Ventral midway between end of snout and base of caudal, or a 

 little nearer the latter. Caudal \ to § length of head. Olive above, 

 white beneath, sometimes with scattered black blotches ; dorsal and 

 anal fins pale olive, darker towards the edge, which may be margined 

 with red ; caudal fin yellowish or pale orange at the base, with a more 

 or less distinct blackish crescentic band, sharply defined in front, 

 shading off to yellow or red behind ; adipose dorsal fin often blackish at 

 the end. 



Total length 720 millim. 



Nile, Omo, Niger, Congo, Zambesi. — Type in Paris Museum. 



Heterobranclius lowjifilis. 





Luxor (F. N.). i 





1. Yg. 



Nile. 





2. Hgr. 



Luxor. 



L. Loat, Esq. (C). 



3. Skel. 



i> 



55 



4-9. Yg. 



Between Luxor and Assuan. 



55 



10. Yg. 



Assuan. 



5) 



11-12. Yg. 



Kosheh, Nubia. 



55 



13. Yg. 



Khartum. 



J. Petherick, Esq. (C). 



14. Ad. 



Cojeb R. (Omo), 2500 ft. 



Mr. P. C. Zaphiro(C). ; 

 W. N. MacMillan, Esq. (P.) 



15. Hgr. 



Ergino R. (Omo), 3000 ft. 



j? 



16. Hgr. 



Orah R., Lagos. 



Major G. E. Bruce (P.). 



17-22. Yg. 



Agberi, S. Nigeria. 



Dr. W. J. Ansorge (C). 



23. Yg. 



Kasai district, Congo. 



M. De Meuse (C.).' 



24,25. Ad.&yg. 



Monsembe, Upp. Congo. 



Rev. J. H. Weeks (P.). 



T 2 



