from the Quanza and Bengo Rivers. 543 



length of head ; adipose eyelid well developed ; interorbital 

 region convex, its width ;2§ to 3 times in length of head; 

 njaxiliary not extending to below anterior border of eye ; 

 1 i (^) teeth in npper jaw, 10 (*) in lower ; lower border of 

 second suborbital as long as eye. Gill-rakcrs long and 

 slender, 15 to 18 on lower part of anterior arch. Dor.sal II 8, 

 originating above ventral, at e([nal distance from end of snout 

 and from caudal, longest ray i to once length of head. 

 Anal III 17-18. Pector.d J to once length of head, not 

 reaching ventral. Caudal forked, with long pointed lobes. 

 Caudal peduncle 1^ to H times as long as deep. Scales 

 37— l-O '^.^f*, H between lateral line and ventral. Steel-blue 

 on the back, silvery-white on the sides and below ; fins 

 greyish, ventrals, anal, and caudal yellow or orange at the 

 base ; pectoral and ventral often with a large black or blackish 

 blotch. 



Numerous s|)ecimcns, 85 to 270 mm. long, from the 

 Quanza River at Cunga and Doudo, and from the Lucalla 

 River at Lucalla. 



Native name : Kitcte. 



Very closely allied to ^1, macrophthalmus, Gthr. ; dis- 

 tinguished by "larger scales (37-10 "'^'f^ U, instead of 39-1:5 



10. Peter sius ansorgii, sp. n. 



Depth of body 2^2| 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 2-1 times in length of 

 head and equals interorbital width ; maxillary extendiu"- to 

 below anterior border ot eye ; outer premaxillary teeth 4, 

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

 8 teeth in lower jaw. Gill-rakers moderate, 18-20 on lower 

 part of anterior arch. Dorsal II 8, originating above base 

 of ventral, some of the rays produced into long filaments in 

 males. Anal II-lII 20-23, pointed in males, median ray 

 produced into a filament. Pectoral as long as or a little 

 shorter than head, reaching or nearly reaching ventral. 

 Caudal forked. Caudal peduncle as long as deep. Scales 

 31-33 -*3^, U-2 between lateral line and ventral. Reddish 

 brown above, more red on the sides, approaching vermilion *, 



♦ This veiniilion soon dbaiipeared after Btaiuin^ the spirit in which 

 the specimens were preserved. 



