356 



CICHLID.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^ times in 

 length of head, ly to 1^ times in interorbital width, less than praeorbital 

 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 tlie 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. Uorsnl XV J 3-14; spines increasing in length to the 

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

 head. Anal III 8-9 ; third spine J length of head. Pectoral j to | 



FiV. 241 . 



^ 





2\tratilu/jia fredenci. 

 Okovaugo 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 ji ; lateral Hues i^_1r^. Olive above, paler beneath, 

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

 times with a blackisli 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 lensjth 210 millim. 



Lake Ngami Hasin. — Tyj^e lost. 

 ]-'^. Ad. Okovaugo H. R. B. Woosiimn, Es(j. ((\). 



