iAI.V.sTAlK.MBKl.l'S. 



]:i") 



13. MASTACEMBELUS NIGER. 

 Saiiv. Bull. Soo. riiilom. (7) iii. 1.S7S, p. 9.), nnd N. Aivli. Miis. (!') iif. 1SS(\ 

 ,,. :'.7. 

 Deptli of body 14 to \C> times in total length, length of head S to I) 

 times. Vent nearl)' equally distant from end of snout and from caudal, 

 its distance from head 3 times length of latter. Snout 4 times as lovig 

 as eye, ending in an a^jpendage which is a little longer than eye ; mou'li 

 extending to below anterior thiid of eye ; no pnrorbital or pncopercular 

 s]>ines. Dorsal XXVII 80-00 ; spines very short, last a little longer 

 than eye ; distance between first spine and head as long as latter. 



¥\s. 78. 



Mdnldceinlji'lun n iijn'. 

 jS'cliali. |. 



Anal II 68-80. Caudal rounded. Pectoral f to j length of head. 

 Scales very small, 32-35 between origin of soft dorsal and anal; no 

 distinct lateral line. Dark brown above, yellowish beneath, with very 

 indistinct darker raarblings ; dorsal and anal edged with yellowish ; 

 pectoral with small blackish spots. 



Total length 290 millim. 



Ogowe. — Type, in Paris Museum, examined. 

 1. Ad. Kcliali, liako Asebbe, near Fonuiii-Vaz. J)r. W. J. .Ansoigo (('.). 



14. MAiSTACEM HELUS ELAVOMAUGINATUS. 

 Boiil(Mi<,r. Tr. Zool. Sof. xv. l.S'.t^, p. 23. 

 Maftaceiuhehis cryiitucctnthiis, part., Giinlii. Ann. & Mag. N. H. (3) xx. 1867, 



I. no. 



Depth of body 13 to IG times in total length, length of head 8 to O.i 

 times. Vent nearly equally distant from end of snout and from caudal, 

 its distance from head 3 to 4 times length of latter. Snout 3 times as 



