MAKCUSENIUS. 



73 



10 



in lateral line, ^ in transverse series on body, g^ in transverse series 

 between dorsal and anal, 16 round caudal peduncle. Uniform brown, 



somewhat lighter beneath. 

 Total length 145 mm. 

 South Cameroon. 



1-2. Types. 



Fig. 55. 



Marcusenius hatesii. 

 Type, f 



Kribi R. at Efulen. 



G. L. Bates, Esq. (C). 



12. MARCUSENIUS ANSORGII. 

 Bouleng. Ann. & Mag. N. H. (7) xv. 1905, p. 457. 



Depth of body equal to length of head, 4| to 5 times in total length. 

 Head once and j as long as deep; snout rounded, J length of head; 

 mouth small, terminal, but situated below level of eye; a feeble mental 

 swelling ; teeth notched, 7 in upper jaw, 8 in lower ; anterior nostril on 



Fig. 56. 



^^^^^^m my^m^^^ '''"'^^ ■■.-.■^rr-"?^ ----- 



jii'- 



. r i*\\ 



Marcusenius ansorgii. 

 Type. 



a level with centre of eye, posterior lower down and separated from eye 

 by a space equal to its distance from the anterior; eye a little shorter 

 than snout. Dorsal 19, originating above 5th or 6th ray of anal, its 

 length about 2\ times in its distance from head. Anal 24-26, equally 

 distant from base of ventral and from base of caudal, or a little nearer 



