HAPLOCHILUS. 77 



front of ventrals ; lateral line indicated by a series of pits. Yellowish 

 brown, with two more or less distinct brown bands along each side, the 

 upper extending- from above the gill-cover to the caudal peduncle, 

 the lower from the eye to the caudal ; breeding male brilliantly coloured 

 with red, purple, and bine; fins whitish, yellowish, or grejish, un- 

 spotted or (male) with round red or orange spots on the caudal, the 



Fi.r. 64. 



IlaplochUus bifasciatus. 

 Mongalla (F. N.). f. 



lower edge of which may be blackish ; anal and ventrals also edged with 

 blackish in the male. 



Total len<j;th 45 millim. 



White Nile, Bahr-el-Seraf, and Bahr-el-Gebel. — Types in Vienna 

 Museum. 



1-3. Ad. Lake No. H. H. King, Esq. (P.). 



4. Ad. Mongalla, near Gondokoro. Dr. F. Werner (P.). 



41. HAPLOCHILUS CHEVALIERI. 

 Pellegr. Bull. Mus. Paris, 1904, p. 222. 



Depth of body 4 to 4^ times in total length, length of head 3 J times. 

 Head flat above ; snout as long as or a little longer than eye ; mouth 

 directed upwards, lower jaw projecting; eye 3 times in length of head, 

 li times in interorbital width. Dorsal 7-8, originating 3 times as far 

 from anterior border of eye as from root of caudal, above antepenulti- 

 mate ray of anal. Anal 13-14. Pectoral | length of head, reaching 

 base of ventral. Caudal pointed, median ray produced, longer than 

 head. Caudal peduncle at least as deep as long. 27-28 scales in 

 longitudinal series ; lateral line indicated by a series of pits. Olive 

 above, yellow on the sides and below ; a dark line along the lower part 

 of the sides and of the caudal peduncle ; each scale on the sides with 

 a carmine spot ; jaws edged with carmine ; fins yellow, dorsal, anal, and 

 caudal finely dotted with carmine. 



Total length 48 millim. 



Congo (Stanley Pool). — Types in Paris Museum. 



