18G ADDENDA, VOL. I. 



Avith 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. Kiluiula, Beiigo I?., Angol;i. Dr. W. J. Ansorge (('.). 



11-1 G. Types. Bengo E. at (Juljiri, Angola. „ 



17-18. Ad. Chiloango Town. „ 



19-20. Ad. Chiloango 11. at Mayiii. 



21-24. Ad. Loango H. at N'Kufn. ,, 



25. Ad. Lebiizi R. at Knka Minio. 



2(3-28. Ad. Liiali li. at Biico Zan. ., 



2tl-;52. Ad.&hgr. Luculla 1{. 



33-35. Ad. L. Chihiungo, near Lamlaiia. „ 



36-37. Ad. Lucola !{., near Cal)iii(la. 



Distinguished fnnn P. hihjendorfi. by a sliorter body, tlie sbn]ie of the 

 })cctoral and anal tins in the adult nude, more numerous gill-rakcrs, and 

 fewer scales in the lateral line. 



1h. PETERSTUS UBALO. 

 Buulcng. Ann. & Mag. N. H. (8) vi. IIMO. p. 541. 



Depth of body 3 to 3i times in total length, length of head of 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 liead and equals interorbital width ; 

 maxillary extending to below anterior border of eye ; outer prtemaxillary 

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

 ill lower jaw. Gill-rakers rather long, IG to 18 on lower part of anterior 

 arch. Dorsal 11 8. originatiuL' above base of ventral, longest ray as long 

 as head. Anal 111 18-20. Pectoral as long as or a little shorter tiian 

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

 as deep. Scales 30-34 "|^', 2 between lateral line and vential. 

 Yellowish green above, silvery beneaili ; tins whitish; a more or less 

 distinct dark lateral band, terminating in a rhomboid d black blotch on 

 caudal peduncle and median rays of caudal tin. 



Total length 45 millim. 



Angola. 

 1-8. Types. T,. KIIiiihIu, n<'ngo 1?. Dr. W. J. Ansorgo (C). 



'.1-1 1. Types. I,. Ku.inan^o, Cahiri. 



