78 CYPEINODONTID^. 



42. HAPLOCHILUS SINGA. 



Bouleng. Ann. Mus. Congo, Zool. i. p. 113, pi. xlvii. fig. 1 (1899), and Poiss. Bass. 

 Congo, p. 34G (1901). 



Depth of body 4 J times in total length, length of head 3| times. 

 Head flat above ; snout broad, as long as eye ; mouth directed upwards, 

 lower jaw projecting a little; eye 3|- times in length of head, 1^ times 

 in interorbital width ; prseorbital very narrow. Dorsal 8, originating 

 twice as far from eye as from root of caudal, above last rays of anal, 

 longest rays f length of head in male. Anal 14. Pectoral a little 

 shorter than head, extending a little beyond base of ventral; latter 

 a little nearer end of snout than root of caudal. Caudal forked, upper 

 and lower rays produced in the male. Caudal peduncle hardly longer 

 than deep. 27-28 scales in longitudinal series, 2(1 round body in front 



Fig. Go. 



Ilaploclnlus singa. 

 S , type (A. M. C). 



of ventrals ; lateral line represented by a series of pits. Olive-green, 

 most of the scales with a carmine spot ; fins greenish yellow, dorsal and 

 caudal with series of carmine dots. 



Total length 45 millim. 



Congo. — Type in Congo Museum, Tervueren. 



1. Ad. Boma. Dr. J. W. Todd (P.). 



2-3. Ad. Lindi R. M. M. Storms (C.) ; 



Brus.sels Museum (P.). 



5. PROCATOPUS. 



Bouleng. Ann. & Mag. N. 11. (7) xiv. 1901, p. 20. 



Teeth unicuspid, in a band, outer largest. Lower jaw projecting 

 a little beyond upper. Body strongly compressed throughout; scales 

 rather large, smooth, exposed surface regularly hexagonal, more than 

 twice as deep as long on the middle lateral series. Dorsal fin shorter 

 and originating further back than anal ; latter with 14-17 rays. 

 Ventral fins far forward, almost below the base of the pecto:als, whicli 

 are inserted very high up the sides. Vertebra^ 21.)-o0. 



A single species. 



