72 



CYPEINODONTIDJE. 



34. HAPLOCHILUS ACUTIOAUDATUS. 

 Uapluchilus senegalensis, var. acaticaudata, Pellegr. Bull. Soc. Zuol. France, 

 xxxviii. 1913, p. 81. 



Depth of body 4f to 5 times in total length, length of bead 3 to 

 3§ times. Head flat above ; snout as long as or a little shorter than 

 eye ; mouth directed upwards ; lower jaw feebly projecting ; eye 

 3 to 4 times in length of head. Dorsal 9-10, originating twice as far 

 from head as from root of caudal, above posterior third of anal. Anal 

 15-16. Pectoral § to f length of head. Ventral reaching anal. 

 Caudal acuminate, as long as head. Caudal peduncle nearly as long as 

 deep. Olive-brown above, yellow beneath, with about 10 oblique dark 

 bars on each side. 



Total length 43 millim. 



Guidimoussi Pond, Lake Chad District. — Types in Paris Museum. 



35. HAPLOCHILUS LOXGIVENTRAL1S. 



Bouleng. Ann. & Mag. N. H. (8) viii. 1911, p. 266. 



HaplocMlus spilargyreus (non A. Dura.), Arnold, Wocb. Aq. Terr. 1911, p. 558, fig. 



Depth of body 4^ to 5 times in total length, length of head 3 to 

 3^ times. Head flat above ; snout rounded, a little longer than eye ; 



Tiff. 59. 



Haplochilas longiuenlrali*. 

 d ? , types, Old Calabar. 



mouth directed upwards, lower jaw slightly projecting ; eye 3| to 

 3|- times in length of head, If to If times in interorbital width ; 

 prseorbital barely j diameter of eye. Dorsal 8-9, originating twice as 

 far from head as from root of caudal, above posterior third or fourth 

 of anal; longest rays h to § length of head. Anal 15-16. Pectoral 

 a little shorter than head, extending beyond base of ventral ; latter 

 ^ as long as head in females, much produced and at least as long as 

 pectoral in adult males, equally distant from end of snout and from root 

 of caudal. Caudal rounded-acuminate, longer than head. Caudal 



