

MOEMYRID.E. 



159 



36. Ad. 



Loango R. at N'Kutu. 



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



37-38. Ad 



Luali R. (Chiloango) at Lundo. 



5) 



39. Ad. 



Lebuzi R. (Chiloango) at 

 Kuka Muno. 



51 



40. Ad. 



Luculla R. (Chiloango). 



)) 



41. Yg. 



Pujehun, Sierra Leone. 



N. W. Thomas, Esq. (P.). 



Add:- 



5, 6. Hgr. 

 7. Ad. 



7. MARCUSENIUS LONGIANALIS, Blgr. 



Niger Delta. Mr. J. Paul Arnold (P.). 



Kribi R. at Kribi, S. Cameroon. Gr. L. Bates, Esq. (C). 



8 a. MARCUS ENI US CASTELNAUI. 

 Bouleng. Tr. Zool. Soe. xviii. 1911, p. 102, pi. xxsviii. fig. 1. 



Depth of body 3 times in total length, length of head 3§ times. 

 Head as lung as deep, twice as long as broad; snout rounded, \ length 

 of head, projecting very slightly beyond mouth ; mouth small, well 

 below level of lower border of eye ; teeth small, notched, 7 in upper 

 jaw, S in lower; eye rather indistinctly defined, nearly as long as snout, 



Pic 106. 



Alarcuseniiis castelnaui. 

 Type (Tr. Z. S. 1911). %. 



its diameter not | inteiocular width ; posterior nostril a little lower 

 down than upper, close to eye. Dorsal 17, originating above 4th ray of 

 anal, its length \ its distance from head, upper border slightly convex 

 in front, longest ray f length of head. Anal 23, equally distant from 

 ba^e of ventrals and from base of caudal. Pectoral pointed, a little 

 shorter than head, twice as long as ventral, extending to middle of 

 latter. Caudal with rather short rounded lobes. Caudal peduncle 

 2J times as long as deep, a little shorter than head. 48-50 scales in 

 lateral line, j~ jS ^ n transverse series on body, ^ in transverse series 

 between dorsal and anal, 12 round caudal peduncle. Pale brownish, 



