116 



MORMTRID.E. 



22. GNATHONEMUS USSHERI. 



Mormyrus usslieri, Giinth. Ann. & Mag. N. H. (3) xx. 1867, p. 116 ; Steind. Notes 



Leyd. Mus. xvi. 1894, p. 71. 

 Gnatlionenms usslieri, Bouleng. Proc. Zool. Soc. 1898, p. 808. 



Depth of body 3-^ times in total length, length of head 4-f times. 

 Head a little longer than deep, with curved upper profile ; snout 

 |- length of head; a globular mental swelling; teeth notched, 5 in 

 upper jaw, 6 in lower ; eye moderate, § length of snout or interorbital 

 width. Dorsal 27-28, originating very slightly in advance of anal, its 



Tiff. 95. 



GnatJionemus ussheri. 

 Type. f. 



length a little less than twice in its distance from head. Anal 30-32, 

 equally distant from base of ventral and from base of caudal. Pectoral 

 pointed, as long as head, twice as long as ventral, extending beyond 

 base of latter. Caudal scaled in its anterior half, with pointed lobes. 

 Caudal peduncle twice as long as deep, slightly shorter than head. 

 55-57 scales in lateral line, j= in transverse series on body, g in 

 transverse series between dorsal and anal, 12 round caudal peduncle. 

 Brown. 



Total length 170 millim. 



Gold Coast. Liberia. 



1. Type. 



2. Hgr. 



Bossumprah R., Gold Coast. 

 R. Offin, Gold Coast. 



H. T. Uesher, Esq. (C). 

 R. B. N. Walker, Esq. (C). 



