HEMICHKOMIS .— CHAMPSOCHEOMIS. 433 



105-106. A 1. Efulen, S. Cameroon. G. L. Bates, Esq. (C). 



107. Ad. Gaboon. 



108-109. Ad. & Ogowe. Miss Kingsley (C). 



hgr. 



110-111. Hgr. Ngomo, Ogowe. Rev. E. Haug (C.) ; 



Paris Museum (E.). 



112. Hgr. Boma, Lower Congo. M. P. Delhez (G). 



113-117, 118-121. Monsembe, Upper Congo. Bev. J. H. Weeks (P.). 



Ad. & hgr. 



122-123. Ad. & Banzyville, Ubanghi. Capt. Royaux (C). 



hgr. 



124-125. Types of ■ ? 



77. guttatus. 



126. Skel. W. Africa. 



16. CHAMPS0CHR0MIS, g. n, 



Paratilapia, part., Bouleng. Proc. Zool. Soc. 1898, p. 137 ; Pellegr. Mem. Sot. 

 Zool. France, xvi. 1904, p. 256. 



Like Paratilapia, but praemaxillaries expanded at the symphysis, 

 beak-like, occipital crest extending forward beyond the orbits, and 

 teeth of outer row very large and widely spaced. Vertebrae 36-39 *. 



Lake Nyassa. 



Synopsis of the Species. 



D. XVI 13 ; depth of body 4 times in total 



length ; 11 gill-rakers on lower part of 



anterior arch ; caudal deeply emarginate . . 1. C. cceruleus, Blgr., p. 433. 

 D. XVI-XVIII 11-12; depth of body 4 to U 



times in total length ; 15-17 gill-rakers . . 2. C. longiceps, Gthr., p. 434. 

 D. XVIII-XX 12-13; depth of body 4f to b{ 



times in total length ; 15-16 gill-rakers . . 3. C. esox, Blgr., p. 435. 



1. CHAMPSOCHROMIS CiERDLEUS. 

 Paratilapia ccerulea, Bouleng. Ann. & Mag. N. H. (8) ii. 1908, p. 240. 



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

 Head 2\ times as long as broad; lower jaw feebly projecting; snout 

 with convex upper profile, lj times as long as broad, as long as post- 

 ocular part of head; eye 2-| times in length of snout, 6 times in length 

 of head, 1^ times in interorbital width ; mouth widely separated from 



* 18 + IS or 18 + 20 in O. longiceps, 19+20 in C. esox. 

 VOL. III. 2 F 



