NANXOCIIKOMIS.— PELMATOCIIROMIS. 



6t i 



Depth of body 8J times in total length, length of head 3 times. 

 Head twice as long as broad, with curved upper ])rofile ; snout 

 a little longer than eye, which is 3J times in length of head and 

 equals interorbital width ; mouth with broad thick lips, extending 

 to below anterior border of eye ; 3 series of teeth in upper jaw ; 

 2 or 3 series of scales on the cheek. 8 gill-rakers on lower part 

 of anterior arch. Dorsal XVII 8 ; spines subequal from the sixth, barely 

 J length of head ; longest soft rays | length of head. Anal III C ; third 

 spine longer than dorsals. Pectoral about § length of head. Ventral 



Fig. 257. 



Nannocliromis squamiceps. 

 Type (P. Z. S. 1882). |. 



not reaching vent. Caudal rounded. Caudal peduncle as long as deep. 

 Scales 29 in longitudinal series, 13 or 14 in transverse series; lateral 

 lines 0I4, upper forming an interrupted series. Pale brownish above, 

 white beneath ; a dark horizontal streak on each side of the head, 

 behind the eye; soft dorsal, anal, and caudal fins with numerous 

 transverse series of small dark spots. 



Total length 65 millira. 



Lindi River, Upper Congo. — Types in Brussels Museum. 



1. One of the types. Lindi R. M. M. Storms (0.) ; 



Brussels Museum (E.). 



13. PELMATOCHROMIS. 



Steind. Notes Leyd. Mus. xvi. 1894, p. 40 ; Bouleno-. Proc. Zool. Soc. 1898, 

 p. 147, and Poiss. Bass, (^ongo, p. 433 (H)01) ; Pelleor. Mem. Soc. Zool. 

 France, xvi. 1904, p. 275 ; Bouleng. Fisli. Nile, p. 484 (1907). 



Cliromidot'ilapia, Bouleng. Proc. Zool. Soc. 1898, p. 151. 



Barely distinguishable from Paratilapia by the greater development 



o-^ a papillose pad on each side of the pharynx, close to the u})pei 



