466 C1CBL1DM. 



2. PARATILAPIA. 



Bleeker, Versl. Ak. Amsterd. ii. 1868, p. 307; Boulenger, Proc. Zool. Soc. 1898, p. 137, and 



Poiss. Bass. Congo, p. 412 (1901) ; Pellegrin, Mem. Soc. Zool. France, xvi. 1904, p. 220. 

 Paracara, Bleeker, Versl. Ak. Amsterd. xii. 1878, p. 193. 

 ffoplotilapia, Hilgendorf, Sitzb. Ges. naturf. Fr. Berl. 1888, p. 77. 

 ffemichromis, part., Pfeffer, Thierw. O.-Afr., Fische, p. 19 (1896). 



Teeth in three or more series, the outer conical, unicuspid in the adult, sometimes 

 bicuspid in the young, the others unicuspid or tricuspid. Maxillary bone exposed at 

 the end when the mouth is closed. Body short or more or less elongate; scales 

 usually ctenoid ; two lateral lines. Dorsal fin with 10 to 18 spines, anal with 3. 

 Vertebrae 27 to 38 (13-19 + 14-19). 



About thirty-five species are known from Continental Africa, Madagascar, and 

 Syria. Ten species, from Lake Victoria, are here described. 



Synopsis of the Species. 

 I. Lips moderately thick. 



A. Snout much longer than the eye, which is four to five and a half times in length of head 



in the adult ; teeth in four to six series in each jaw. 



1. Lower jaw strongly projecting ; maxillary not extending to below eye ; caudal fin rounded 



or subtruncate ; D. XIV-XVI 8-10 ; Sq. 32-40 £& 

 Diameter of eye four and a half to five and a half times in length of 



head, and less than depth of scaly part of cheek, in the adult . . 1. P. longirostris, Hilg. 

 Diameter of eye four to fi\e times in length of head, and equal to 



depth of scaly part of cheek, in the adult 2. P. prognatha, Pellegr. 



2. Lower jaw feebly projecting ; D. XV-XVII 8-10; Sq. 31-45 ^. 

 Maxillary extending to below anterior border of eye ; caudal fin 



truncate 3. P. serranus, Pfeff. 



Maxillary not extending quite to below anterior border of eye ; caudal 



fin slightly emarginate in the adult 4. P. guiarti, Pellegr. 



B. Snout not or but little longer than the eye, which is not more than four times in length 



of head ; D. XV-XVII 8-10 ; Sq. 30-40 j^jg. 

 Teeth in four or five series ; last 4 or 5 dorsal spines equal in length ; 



snout as long as or a little longer than eye 5. P. victoriana, Pellegr. 



