MAECUSENIUS. 69 



7. MAECUSENIUS LONGIANALIS. 

 Boiileng. Proc. Zool. Soc. 1001, i. p. 5, pi. iii. fig. 1. 



Depth of body 5 to 5f times in total length, length of head 5| to 6| 

 times. Head cmce and ^ as long as deep ; snout convex, ^ length of 

 head, slightly projecting beyond mouth ; latter small, its width j length 

 of head; teeth feebly notched, 5 in upper jaw, 6 in lower; nostrils 

 nearly equally distant from end of snout and from eye, anterior on a 

 level with centre of latter, posterior with its lower border ; eye about 

 |- length of snout, ^ or J interorbital width. Dorsal 14-16, originating 

 above 16th or 1 7th ray of anal, its length about ^ its distance from head. 



Fis. 51'. 





-■5?- i, ^f>^ 



Marcusenius longtanalis. 



5 



Type (P. Z. S. 1901) A 



Anal 31-33, 2 to 2^ times as long as dorsal, nearer base of caudal than 

 base of ventral. Pectoral obtusely pointed, a little shorter than head, 

 once and f length of ventral, reaching base of latter. Caudal with 

 pointed lobes. Caudal peduncle 3 to 3| times as long as deep, nearly 

 as long as head. 60-66 scales in lateral line, j^^ in transverse series 

 on body, ^ between dorsal and anal, 12 round caudal peduncle. 

 Purplish brown, more or less profusely speckled with blackish ; fins 

 dark brown. 



Total length 145 millim. 



Lower Niger. 

 1-2 Types. Sapelle. T)i: '.V. J, Ansorge (0.). 



3. Hgr. „ ^f'-- J- D- ITamlyn (0.) ; 



Hon.W Kothschikl (P.). 



4. Ad. Agberi. Dr. W. J. Ausorge (C). 



