MARCUS EMUS. 



69 



7. MAP.CUSENIUS LONGIANALIS. 

 Bouleng. Proc. Zool. Soc. 1901, 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 once and ^ as long as deep ; snout convex, £ length of 

 head, slightly projecting beyond mouth ; latter small, its width -^ 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 

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

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



i'ijr. 51. 



gfg ^^^ ' ^ '^i ^ ^gf^^pSpp^BgJ 



P£* iBS » 



Jlarcusenius longuuialis. 

 Type (P. Z. S. 1901). f. 



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

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

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

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

 as long as head. 60-66 scales in lateral line, -^ji in transversa series 

 on body, ps 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. 

 3. Hgr. 



4. Ad. 



Sapelle. 



Agberi. 



Dr. W. J. Ansorge (C). 

 Mr. J. D. Hamlyn (C.) ; 

 Hon. W. Rothschild (P.). 

 Dr. W. J. Ansorge ((J.). 



