502 



CICIILID.E. 



1. XENOCHUOMIS HECQUI. 

 Bouleng. 11. cc, Ann. pi. xlvii. fiu-. 3^ and Tr. Zool. Soc. xvi. 1901, p. 159; 

 Pellegr. 1. c. 



Depth of body equal to length of head, 3^^ to 3^ times in total length. 

 Head twice as long as broad ; snout broader than long and convex, as 

 long as eye in young, a little longer in adult; eye 3g to 4 times in 

 length of head, 1 to 1^ times in interorbital width ; lower jaw projecting 

 a little beyond upper; mouth extending to below anterior border of 

 eye; 34 to 46 teetli in upper jaw, 30 to 40 in lower; interocular 

 region scaly, convex ; 4 or 5 series of scales on the cheek, (jill-rakers 

 as long as gill-lamelhe, slender, closely set, 45 to 52 on lower part of 

 anterior arch. Dorsul XVI-XVIl 10-11; spines subequal from the 

 seventh, ^ to f length of head ; longest soft rays ^ to | length of head. 

 Anal 111 9-10; second and third spines equal, stronger and a little 





Xenoch roin (S hecq n I . 

 Type (A. M. C). ;|. 



shorter than dorsals. Pectoial nearly as long as head. Ventral 

 reaching vent or beyond origin of anal. Caudal with deep crescentic 

 notch. Caudal peduncle 1 .j to 1| times a^ long as deep. Scales 64-07 ^y, ; 

 lateral lines '^_'^-^ ; 4 series of scales between the lateral lines anteriorly. 

 Olive above, whitish beneath, with more or less distinct dark bars across 

 the back on the posterior half of the body ; a blackish opercular spot. 



Total length 270 millim. 



Lake Tanganyika. — iypes in Congo Museum, Tervueren. 

 1-2. .\<1. Usaml.ma. Trof. J. E. S. Moore (C). 



W. Skel. 

 •1, Il-r. 



Molii 



Ih-. AN". A. ( 'uniiington (C). 



