58 CYPRINODONTID.^. 



Caudal rounded, slightly shorter than head. Caudal peduncle 1^ times 

 as long as deep. 2S scales in longitudinal series, 22 round body in 

 front of ventrals. Yellowish, sides tinged with carmine ; a carmine 

 streak on each side of the head, through the eye, and round the chin ; 

 another below the eye ; gill-membranes, pectorals, and ventrals edged 

 Avith carmine ; dorsal and anal with a longitudinal streak and some 

 cjirmine spots ; caudal bordered all round with carmine, with three bars 

 of tlie same colour. 



Total length 32 niillim. 



South Cameroon. 

 1. Type. Nyo»g River. G. L. Bate,^, Esq. (C). 



18. HAPLOCHILUS ELEGANS. 



Boiilcng. Ann. Mus. Congo, Zool. i. p. 113, pi. xlvii. fig. 2 (1809), and Poiss. Ba<s. 

 Congo, p. 315 (lUOl). 



Depth of body ij to SJ times in total length, length of head 3| to 

 of times. Head flat above ; snout as long as eye ; mouth directed 

 upwards, lower jaw projecting; eye 3 to oj times in length of head, 

 H times in interorbital width; pra)orbital very narrow. Dorsal 8, 



Fig. 4a. 



^^rf£^ 



;^..„^^>iJiiu 



IlajiJocliilus cl((j(tns. 

 d , type (A. M. C). 



nrioiiiatini^ twice as far from anterior border of eye as from root of 

 caudal, above middle of anal produced into a filament in males. Anal 

 11-15, produced like the dorsal. Pectoral f length of head, nearly 

 reaching base of ventral ; latter a little nearer end of snout than caudal. 

 Caudal forked, upper and lower rays produced into filaments in the male. 

 Caudal peduncle nearly twice as long as deep. 80-32 scales in longi- 

 tudinal series, 20 round body in front of ventrals ; lateral line indicated 

 by a series of pits. Yellowish or pale olive, brown on the back, most 

 of the scales cd<j:ed with carmine : vertical fins with carmine dots and 

 edged with carmine or dark pur[)le. 



Total length 40 millim. 



Upper Congo. — Types in Congo Museum, Tervueren. 



1-3. Type.-. Bikoro, L. Tiuul.a. 31. P. Delhez (C). 



4-."). ., ' < '(iriuillialN iUe. ,. 



