CUAKACINlD.i:. IS* 



Distinguished from the preceding by a more elongate body, longer 

 gill-rakers, fearer branched rays in the anal tin, and especially by the 

 more normal shape of the fins in the male. 



7 a. PETERSIUS SEPTENTRIONALIS. 

 Boulcng. Ann. & M:ig. N. H. (8) vii. 1011, p. 373. 



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

 Head twice as long as broad, longer than deep ; lower jaw projecting 

 slightly beyond snout ; snout shorter than eye, which is 2i times in 

 length of head and exceeds interorbital width ; maxillary extending to 

 below anterior border of eye ; outer pntmaxillary teeth 4, alternating 

 with those of the inner row, 8 in number; 8 teeth in lower jaw. Gill- 

 rakers moderately long, 12 on lower part of anterior arch. Dorsal 117, 

 originating above ventral, at equal distance from centre of eye and from 

 root of caudal. Adipose fin very small. Anal III 13-14. Pectoral 

 nearly as long as head, not quite reaching ventral. Caudal deeply 

 forked. Caudal peduncle a little longer than deep. Scales 25-26 ^f' 

 1 or 1-i- between lateral line and ventral.' Silvery, finely speckled with 

 brown on tlie back ; a blackisli lateial band ; fins white. 



Total length 45 millim. 



Portuguese Guinea. 

 1-.^. Types. Geba R. at Bafahi. Dr. W. J. Ansorge (C). 



Distinguished from all the species with alternating pnemaxillary teeth 

 and a complete lateral line by the low number of scales in the lateral 

 line. 



8. PETEPSrilS PULCHER, BIgr. 

 Add :— 



u. All. Sankuni R. at Kontliio, 'S\. E. Liija {('.); Ijuximh- 



Kasai, Congo. l>iu-g Museum (P.). 



0. PETERSIUS MAJOR, Blgr. 

 Add :— 



1 3-1 .X A.I. .Ja R. at Bitye. G. L. Bates, Esq. (('.). 



Add :— 



10. PETERSIUS SriT,OPTERUS. BIyr. 



Wari, Lower Nig.T. IMr. J. Paul Aiiiuia (P.). 



