NANNOCHKOMIS. 375 



12. NANNOCHROMIS. 



Pseudoplesiops (non Bleek.), Bouleng. Ann. Mus. Congo, Zool. i. p. 121 (1899), 



and Poiss. Bass. Congo, p. 431 (1901). 

 Hanochromis, Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 273. 



Distinguished from Paratilapia by the position of the upper lateral 

 line, which is much higher up, nearly the whole, or at least a con- 

 siderable part, of its course running along the series of scales contiguous 

 to the base of the dorsal fin. Scales cycloid. 



Congo. 



Synopsis of the Species. 



D. XVIII-XIX 8; Lat. 1. -/™ ; cheek 



naked 1. N. nudiceps, Blgr., p. 375. 



18 

 D. XVII 8 ; Lat. 1. -g ; cheek naked or with 



one or two scales below the eye ... 2. N. dimidialus, Pellegr., p. 37U. 



D. XVII 8 ; Lat. 1. — ; 2 or 3 series of 



scales on the check 3. A 7 . squamice]is, Blgr., p. 370. 



1. NANNOCHROMIS NUDICEPS. 



Pseudoplesiops nudiceps, Bouleng. Ann. Mus. Congo, Zool. i. p. 122, pi. xliv. fig. G 



(1899), and Poiss. Bass. Congo, p. 431 (1901). 

 Nanocliromis nudiceps, Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 273. 



Depth of body 3^ to 3J times in total length, length of head 3 to 

 3^ times. Head twice as long as broad, with curved upper profile ; 



Fig. 256. 



Nannocltromis nudicej>s. 

 Type (A. M. C). 



snout a little longer than eye, which is 3^- to 3i times in length of head 

 and a little exceeds interorbital width ; mouth extending to below 

 anterior border of eye ; 3 or 4 series of teeth in upper jaw ; head 



