436 



CICHLID^, 



convex upper profile, twice as long as broad, longer than postocular part 

 of head ; eye 3^ to 4 times in length of snout, 7 to 8 times in length of 

 head, twice in interorbital width ; mouth widely separated from vertical 

 of anterior border of eye ; teeth in 2 or 3 series ; 5 or 6 series of scales 

 on the cheek. Gill-rakers rather short, 15 or 16 on lower part of 

 anterior arch. Dorsal XVIII- XX 12-13 ; spines weak, increasing in 

 length to the last, which measures ^ length of head ; longest soft rays 



Fiff. 297. 



Champsocliromis esox. 



Type- 



about \ length of head. Anal III 10-11 ; third spine nearly as long as 

 and stronger than last dorsal. Pectoral \ length of head. Ventral not 

 reaching vent. Caudal ^scaly, feebly but distinctly emarginate. Caudal 

 peduncle 2 to 2-2- times as long as deep. Scales finely denticulate, 

 43-45 j4r[3 ; lateral lines ^ly^. Bright silvery white, except on the 

 back, which is dark green ; a black opercular spot ; fins bluish grey, 

 dorsal and anal edged with orange. 



Total length 370 millira. 



Lake Nyassa. 

 1-2. Typf<. L. Nyassa. 



Capt. E. L. RhoaJcs (P.). 



3. Skel. 



17. BATHYBATES. 



Bouleng. Tr. Zool. Soc. xv. 1898, p. 15, and Poiss. Buss. Congo, p. 429 (1901) ; 

 Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 364 ; Bouleng. Tr. Zool. Soc. 

 xvii. 1906, p. 565. 



Body elongate ; scales cycloid, small, and irregular. Teeth in jaws 

 fang-like, in 2 to 4 series, the inner depressibJe, hinged at the base ; 

 maxillary bone folding under the prteorbital. Dorsal with 13 to 17 



