PETERSltJS. 



233 



in lower jaw. Gill-rakers short, 15 or 10 on lower part of anterior arch. 

 Dorsal II 8, originating above base of ventral, at equal distance from 

 end of snout and from caudal ; some of the rays produced into long 

 filaments in males. Anal III 20-23. Pectoral f to f length of head, 



Yicr. 176. 



.fc^^S^'''' 



Petersius Tiilgendorjl. 

 Type (A. M. C). f. 



nearly reaching ventral. Caudal forked. Caudal peduncle hardly 



71 



longer than deep. Scales 35-36 ^f, 2 between lateral line and root oi 

 ventral. Dark brown above, silvery beneath ; a dark lateral band on 

 posterior two-thirds of body ; a vertical black bar above pectoral ; iins 

 black. 



Total length 100 millim. 



Upper Congo (Lake Leopold 11. and Alinja Eiver), Ogowe, — 

 Types in Congo IMustun), Teivueren. 



1-2. Types. Kutu, L. Leopold 11. M. P. Uclliez (C). 



3-1. Type.s. Ibali, „ „ 



5-0. Hire. Gaboon. 



3. PETERSIUS CONSERIALIS- 

 Ililgend. Sitzb. Ges. naturf. Fr. Berl. 1804, p. 173 ; PiVff. Thierw. O.-Afr., 

 Fische, p. 44 (1800). 



Depth of body 2J times in total length, length of head nearly 4 times. 

 Head a little longer than deep, upper profile concave ; lower jaw 

 projecting beyond upper; snout a little shorter than eye, which is 

 3 J times in length of head and equals interorbital width ; maxillnry 

 extending to below anterior border of eye ; outer praemaxillary teeth 4, 

 almost on a line with and alternating with those of the inner row, 8 in 

 number; 8 teeth in lower jaw. Gill-rakers rather short, IS on lower 



