236 



CHAEAC1NID.E. 



8. Mnnocharax taenia. 



Bouleng. Ann. Mus. Congo, Zool. ii. p. 28, pi. viii. fig. 3 (1902). 



Depth of body 4§ to 5 times in total length, length of head 4 times. 

 Head deeper than broad ; snout as long as eye, which is 83- times in 

 length of head and equals interorbital width. Dorsal III 11-12, 

 originating well in advance of ventrals, situated at equal distance from 

 end of snout and from caudal, longest ray f length of head. Anal HI 8. 

 Pectoral a little shorter than head, not reaching ventral. Caudal 



Fig. 220. 



ifatihdcJittrav tdnia. 

 Type (A. M. C). 



forked, with pointed lobes. Caudal peduncle nearly twice as long as 

 deep. Scales 48-49 -^r", 5 between lateral line and root of caudal. 

 Yellowish, With about 10 brown cross-bars on the back and sides ; 

 a greyish lateral band from end of snout to caudal ; a blackish spot at 

 base of caudal, another, smaller, on each lobe of this fin, and a blackish 

 line along the ventral. 



Total length 60 millim. 



Ubanghi. — Type in Congo Museum, Tervueren. 



1. One of the types. 



Jaiizy'v'ille; 



Capt. Royaux (C). 



9. NANNOCHARAX DlMIDIATUS. 

 Pellegr. Bull. Mus. Pari?, 1904, p. 220. 



Depth of body nearly equal to length of head, 4^ times in total length. 

 Head once and \ as long as deep ; snout slightly shorter than eye, 

 which is hardly 3 times in length of head and a little exceeds inter- 

 orbital width. Dorsal III 12, originating in advance of ventrals, a little 

 nearer end of snout than caudal, longest ray as long as head. Anal III 8. 

 Pectoral f length of head, not reaching ventral. Caudal forked. Caudal 

 peduncle a little longer than deep. Scales 52^, 6 between lateral line 



