CHEYS1CHTHYS. 



819 



head ; outer mandibular barbel 1 J times as long as inner and f length 

 of head. Dorsal I 6, If times as distant from root of caudal as from 

 end of snout ; spine striated, not serrated, ■§= length of head ; first soft 

 ray longest, f length of head. Adipose dorsal not longer than deep, its 

 base -§■ that of rayed dorsal, from which it is separated by a space equal 

 to 7 times its base. Anal 13, 8 rays branched. Pectoral spine % length 

 of head, strongly serrated on inner side. Caudal deeply forked, with 

 pointed lobes, longest rays about 3 times length of median. Caudal 

 peduncle not quite twice as long as deep. Brown above, whitish 

 beneath. 



Total length 370 millim. 



Lake Mweru. 

 1. Skin, type. L. Mweru, Sir A. Sbarpe (P.). 



3. OHRYSICHTHYS ACUTIROSTRIS. 

 Giinth. Cat. Fish. v. p. 431 (1864). 



Depth of body 5-J- times in total length, length of head 3^- times. 

 Head but slightly broader than deep, If times as long as broad, its 



Fig. 251. 



Chrysichiliys acutirostris. 

 Type. J. 



upper surface rugose ; occipital process narrow, extending to the small 

 interneural shield; snout obtusely acuminate, not broader than long, 

 nearly twice as long as eye, which is 4f times in length of head and 



