532 



Annul* <>J Ilic 



i African M uxr/nii. 



* 11. PARATILAPIA FREDERICI, Cast. 



Chromys frederici, Castdn., Mc'm. Poiss. Afr. Austr., \>. 15 (1861). 



Chromidotila/pia (': ) J'n'<lcrici, Bouleng., Pror. Zool. Soc,, xviii, 

 1911, p. 409, pi. xxxix, fig. 1. 



Paratilapia frederici, Bouleng., Traus. Zool. Soc,, xviii, 1911, p. 409, 

 pi. xxxix, fig. 1, and Freshw. Fish. Africa, iii, p. 355, fig. 241 (1915). 



" Depth of body 2i- times in total length, length of head 3 times. 

 Head twice, or a little over twice, as long as broad, upper profile 

 slightly 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 

 63- times in length of head, 11- to 1J times in interorbital width, less 







<eSS& - : -V '' '''! - rvr.5 *'.'. "- - --- v-r ; , ,'\ . v -: ' --: 



'ijim- m 



,-** - ^ '.-" 



FIG. 149. Paratilapia frederici. . 



than preorbital depth ; inoiith not extending to below anterior border 

 of eye ; teeth in outer series rather small, 50 to GO in upper jaw, 

 followed by one or two irreguLir 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 I length of head ; longest soft rays f to f length of head. 

 Anal iii 8-9 ; 3rd spine | length of head. Pectoral T to f length of 

 head, not reaching vertical of origin of anal. Ventral reaching vent. 

 Caudal rounded ; caudal peduncle as long as dee}). Scales cycloid, 



32-34 g ; lateral lines g=g. 



