7. nAPLOcniLus. 313 



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

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

 fishes the anal has the same position. 



6. Haplochilus infrafasciatus. 

 D. 11. A. 14. V. 6. L. lat.28. L. transv. 9. 



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

 total length (without caudal) in a male, the length of the liead thiice 

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

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

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

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

 head. The diameter of the eye equals tlie 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 caudal and the 

 eye, corresponding to the nineteenth scale of the lateral Hne, 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. Brownish red, with a more or less distinct blackish 

 lateral band ; six blackish-brown cross bars 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 Mrica ; Upper Nile (?). 



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

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

 Collection. 



PceciUa spUargyreia, Dumeril, Arch. Mus. x. 1861, j). 258, would 

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

 coloured, without bands. 



7. Haplochilus sexfasciatus. 

 Pcecilia sexfasciata, Peters, Monatsber. 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 than to the gill- 

 opening, corresponding to the eighteenth scale of the lateral line, and 

 nearly to the middle of the anal. Pectoral 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. Body 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 



