18G ADDENDA, VOL. I. 



with a more or less distinct dark lateral band extending on the caudal 

 fin, and a vertical dark bar above pectoral ; fins greyish, tinged with 

 vermilion. 



Total length 65 millim. 



Angola to Chiloango River. 



1-10. Types. L. Kilunda, Bengo R., Angola. Dr. TV. J. Ansorge (C). 



11-16. Types. Bengo R. at Cabiri, Angola. „ 



17-18. Ad. Chiloango Town. 



19-20. Ad. Chiloango R. at Mayili. 



21-24. Ad. Loango R. at N'Kutn. 



25. Ad. Lebuzi R. at Kuka Muno. 



26-28. Ad. Luali R. at Buco Zau. 

 29-32. Ad. & hgr. Luculla R. 



33-35. Ad. L. Chiluango, near Landana. „ 



36-37. Ad. Lucola R., near Cabinda. „ 



Distinguished from P. hilgendorfi by a shorter body, the shape of the 

 pectoral and anal fins in the adult male, more numerous gill-rakers, and 

 fewer scales in the lateral line. 



2b. PETERSIUS UBALO. 

 Bouleng. Ann. & Mag. N. H. (8) vi. 1910, p. 544. 



Depth of body 3 to 3J times in total length, length of head 3§ to 

 4 times. Head as long as deep, with slightly concave upper profile ; 

 lower jaw not projecting beyond upper; snout much shorter than eye, 

 which is 2\ to 2f times in length of head and equals interorbital width ; 

 maxillary extending to below anterior border of eye ; outer praemaxillary 

 teeth 4, alternating with those of the inner row, 8 in number ; 8 teeth 

 in lower jaw. Gill-rakers rather long, 16 to 18 on lower part of anterior 

 arch. Dorsal II 8, originating above base of ventral, longest ray as long 

 as head. Anal III 18-20. Pectoral as long as or a little shorter than 

 head, not reaching ventral. Caudal forked. Caudal peduncle as long 



6 1 — 7 1 



as deep. Scales 30-34 -§!-% 2 between lateral line and ventral. 

 Yellowish green above, silvery beneath; fins whitish; a more or less 

 distinct dark lateral band, terminating in a rhomboidal black blotch on 

 caudal peduncle and median rays of caudal fin. 



Total length 45 millim. 



Angola. 



1-8. Types. L. Kilundu, Bengo R. Dr. W. J. Ansorge (C). 



9-14. Types. L. Rumango, Cabiri. .. 



