12 



POLYPTEEID^. 



shields ; suboperculum a little smaller or a little larger than eye. 

 Dorsal with IX-X spines, not overlapping when folded. Anal 10-11. 

 Pectoral widely separated from first dorsal spine. 60-65 scales in a 

 longitudinal series, 22-26 between occiput and first dorsal spine, 44-46 

 round middle of body. Olive above, yellowish beneath ; 7 or 8 blackish 

 bars on the back, bifurcating on the lower part of the sides ; fins 

 spotted, marbled, or irregularly barred with blackish ; young with a 

 black spot on the membrane behind each dorsal spine. 



Total length 380 millim. 



Upper Congo, Katanga. 



1. Yg., Type. Monsembe. liev. J. H. Weeks (P.). 



2. Ad. 



6. POLYPTERUS ORNATIPINNIS. 



Bouleng. Ann. Mus. Congo, Zool. ii. p. 23, pi. vii. fig. 1 (1902), and Ann. & Mag. 

 N. H. (7) xvi. 1905, p. 641. 



Head and body less depressed than in the preceding. Head 1| times 

 as long as broad, 6 times in total length; snout projecting very slightly 



Pi- 8. 



^^i^ 



Poh/pterus ornatipinnis. 

 Type (A. M. C). i 



beyond lower jaw; eye lateral, 81 times in length of head, 3 times in 

 width of interorbital region, which is slightly convex ; all head-shields 

 paired ; a series of 4 shields between postorbital and spiracular shields • 

 suboperculum slightly larger than eye. Dorsal with X-XI spines, not 



