56 CYPEINODOiMTlD.^. 



specimens. The principal difference from H. sexfasciatus appears to be 

 that the head is only 3 or 3| times in the total length. D. 11 ; A. 15 ; 

 Sc. 27. 



15. HAPLOCHILUS CHAPERI. 



Pacilia sea-fasciata (non Gill), Peters, Mon. Berl. Ac. 1864, p. 396. 



HaplocUlus sexfasciatus, Giinth. Cat. Fish. vi. p. 213 (1866). 



Epiplatr/s infrafasciatus (non Giinth.), Cope, Proc. Amer. Philos. Soc. xi. 1870, 



p. 457. 

 Haplocldlvs chaperi, Sauv. Bull. Soc. Zool. Fr. 1882, p. 323, pi. v. fig. 5 ; Arnold, 



Woch. Aq. Terr. 1908, p. 297, pi. — ; Ehnle, Bl. Aq. Terr. 1910, p. 809, fio-. 



Depth of bodj^ nearly equal to length of head, 3| to 4 times in 

 total length. Head flat above ; snout rounded, as long as eye ; mouth 

 directed upwards, lower jaw slightly projecting; eye 3|- to 3-| times in 

 length of head, -^ to f interorbital width; prseorbital barely ^ diameter 

 of eye. Dorsal 7-8, originating twice as far from occiput as from root 

 of caudal, above middle of anal ; longest rays about f length of head in 

 male, shorter in female. Anal 14-15. Pectoral f to f length of head, 

 extending a little beyond root of ventral ; latter equally distant from end 

 of snout and from root of caudal. Caudal as long as head, rounded or 

 rounded-subacuminate, some of the rays slightly produced in males. 



Pig. 41. 



Haplocliiliis cliaperi. 

 6 , Sierra Leone. 



Caudal peduncle as long as deep. 25-27 scales in longitudinal series, 

 20 round body in front of ventrals ; lateral line indicated by an 

 interrupted series of pits. Brown above, sometimes with carmine spots ; 

 yellowish beneath ; six or seven black vertical bars on each side, the 

 first at the eye or on the gill-cover; one often present between the 

 pectoral and the ventral, two or three above the anal, the last at the 

 base of the caudal ; only the last or last two extending to the upper 

 surface of the body ; the scales of the back edged with red in the male ; 

 a black band round the lower lip ; fins edged with black in the rriale, 

 which may have two black spots or vertical bars on the anal. 



Total length 65 millim. 



Sierra Leone to Gold Coast.— Types in Paris Museum. 



