356 



C1CHLID.E. 



concave in front of the eyes ; snout rounded, as long as broad, as long 

 as or slightly longer than postocular part of head ; eye 5 to 5-J times in 

 length of head, 1-^ to lj times in interorbital width, less than pragorbital 

 depth; mouth not extending to below anterior border of eye; teeth in 

 outer series rather small, 50 to 60 in upper jaw, followed by one or two 

 irregular series of minute teeth confined to the anterior part of the jaws ; 

 3 to 5 series of scales on the cheek, width of scaly part greater than 

 diameter of eye. Lower pharyngeal teeth with spherical crowns. Gill- 

 rakers short, knob-like or anvil-shaped, 11 or 12 on lower part of 

 anterior arch. Dorsal XV 13-14; spines increasing in length to the 

 last, which is about f length of head ; longest soft rays f to f length of 

 head. Anal III 8-9 ; third spine -| length of head. Pectoral § to f 



FiV. 241 . 



Puratilapia frederici. 

 Okovango E. (Tr. Z. S. 1911). §. 



length of head, not reaching vertical of origin of anal. Ventral reach- 

 ing vent. Caudal rounded. Caudal peduncle as long as deep. Scales 

 cycloid, 32-34 ^-j ; lateral lines i^ 5 . Olive above, paler beneath, 

 with or without a vertical brown bar at the base of each scale; some- 

 times with a blackish lateral band, which may be traversed by eight 

 blackish vertical bars ; dorsal green or olive, sometimes edged with 

 red, with round yellowish-brown spots on the soft part ; anal green 

 or pink, with numerous round pinkish-white spots ; pectorals lake-red, 

 ventrals olive-green. 



Total length 210 millim. 



Lake N garni Basin. — Type lost. 

 1-3. Ad. Okovango R. E. B. Woosnam, Esq. (C). 



