MASTACEMBELUS. ]25 



13. MASTACEMBELUS NIGER. 



Siuiv. Bull. Soc. Philom. (7) iii. 1878, p. 95, and N. Arch. Mus.-(2) in. 1880, 

 p. 37. 



Depth of body 14 to 16 times in total length, length of head 8 to 9 

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

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

 as eye, ending in an appendage which is a little longer than eye; mouUi 

 extending to below anterior third of eye ; no pra^orbital or preeopercular 

 spines. Dorsal XXVII 80-90 ; spines very short, last a little longer 

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



Pig. 78. 



Mastiicemhelus iiiger. 



Xuliaii. ^. 



Anal II 68-80. Caudal rounded. Pectoral f to | 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 marblings; dorsal and anal edged with yellowish; 

 pectoral with small blackish spots. 



Total length 290 millim. 



Ogowe. — Type, in Paris Museum, examined. 

 1. Ad. JSCchali, Tiake Asebbe, near Fernan-Vaz. Dr. W. J. Aiisorgc (C). 



14. MASTACEMBELUS FLAVOMARGINATUS. 



Bouleng. Tr. Zool. Soc. xv. 1808, p. 23. 



Mastacemhelm crt/ptacanthus, part., Giinth. Ann. & Mag. X. H. (3) xx. 1867, 



p. 110. 



Depth of body 13 to 16 times in total length, length of head 8 to 9J 



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 us 



