7. HAPLOCniLTTS. 313 



probably an error, as, according to the description, its relative posi- 

 tion to the anal fin is the same as in H. sjjilauchen, ,and as in both 

 fishes the, anal has the same position. 



6. Haplochilus infrafasciatus. 

 D. 11. A. 14. V.G. L.lat. 28. L. trans v. 9. 



The height of the body is contained four times and a half in the 

 total length (without caudal) in a male, the length of the head thrice 

 and two-thirds. ' Head much depressed, with the snout of moderate 

 length, and with the lower jaw very slightly projecting beyond the 

 upper ; mandible much longer than the eye. The Avidth of the in- 

 terorbital space is somewhat more than one-half of the length of the 

 head. The diameter of the eye equals the length of the snout, and 

 is contained thrice and a fourth in that of the head. The origin of 

 the dorsal fin is midway between the extremity of the caudaj. and the 

 eye, con'esponding to the nineteenth scale of the lateral line, and 

 nearly to the middle of the anal. Pectoral fin scarcely extending 

 beyond the root of the ventral, which, in males, reaches the anal. 

 In the male the dorsal fin extends to the caudal, if laid backwards ; 

 the anal not. BrowTiish red, with a more or less distinct blackish 

 lateral band ; six blackish-brown cross bare between the band and 

 the lower margin of the belly and tail — the first indistinct, behind 

 the base of the pectoral, the second in front of the root of the ventrals, 

 the third corresponding to the origin, and the fourth to the middle of 

 the anal fin, the fifth behind the dorsal, and the sixth across the root 

 of the caudal. 



West Africa ; Upper Nile (?). 



a. Male, 2| inches long. Old Calabar. Purchased of Mr. Cutter. 

 (?) b. Male, 1 inch long. Upper Nile. From Consul Petherick's 

 Collection. 



Poecilia sjoilargyreia , Dumeril, Arch. Mus. x. 1861, p. 258, would 

 appear to agree very well with our specimens, but is uniformly 

 coloured, without bands. 



7. Haplochilus sexfasciatus. 



Poecilia sexfasciata, Peters, Motiatsber. Akad. Wiss. Berl, 1864, p. 396. 



D. 7. A. 14. L.lat. 24. 



The height of the body is somewhat less than the length of the 



head, and rather more than one-fourth of the total (without caudal). 



Shape of the head as in the preceding species. The origin of the 



dorsal fin is nearer to the extremity of the caudal thar to the giU- 



opening, corresponding to the eighteenth scale of the lateral Kne, aii'd 



nearly to the middle of the anal. Pectoi-al extending beyond the 



root of the ventral, which reaches the vent. The free portion of the 



tail is very short and high, and the dorsal extends to the root of the 



caudal, if laid backwards. Eody with six narrow black cross-bands, 



— the first indistinct, across the opercle ; the second behind the root 



of the pectoral ; the third corresponding to the origin, the fourth to 



