NANNOCHROMLS.— PELMATOCHROMIS. an. 



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

 Head twice as long as broad, with curved upper profile ; 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 

 £ length of head ; longest soft rays § length of head. Anal III 6 ; third 

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



Fig. 257. 



Nannochromis squamiceps. 

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



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

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

 lines jpj, 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 millim. 



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



1. One o£ the types. Lindi R. M. M. Storms (C.) ; 



Brussels Museum (E.). 



13. PELMATOCHROMIS. 



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

 p. 147, and Poiss. Bass. Congo, p. 433 (1901) ; Pellegr. Mem. Soc. Zool. 

 France, xvi. 1904, p. 275 ; Bonleng. Fish. Nile, p. 484 (1907). 



Chromidotilapia, Bouleng. Proc. Zool. Soc. 1898, p. 151. 



Barely distinguishable from Paratilapia by the greater development 

 of a papillose pad on each side of the pharynx, close to the upper 



