126 



MASTACEMBELID-E. 



long as eye, ending in an appendage which is about 1J times as long as 

 eye ; mouth extending to below anterior border of eye ; no praeorbital 

 or prseopercular spines. Dorsal XXV-XXVIII 73-80 ; spines increasing 

 in length to the last, which is about 1| times length of eye; distance 

 between first spine and head equal to or a little greater or a little less 

 than length of head. Anal II 80-90. Caudal rounded. Pectoral f to 

 ■J length of head. Scales very small, 15 to 18 between origin of soft 

 dorsal and lateral line ; latter formed of a few tubules widely separated 

 from one another. Brown, more or less distinctly reticulate with 

 darker ; the reticulation enclosing light spots ; dorsal and anal fins in 

 the adult dark brown or black, edged with yellowish, in the young 

 white, spotted with black ; pectoral with small dark spots or cross-bars. 



Total length 310 millim. 



South Cameroon to Portuguese Congo. 



Gaboon. 



1-2, 3. Types. 



4. Hgr. 



5. Hgr. 

 G. Ad. 



7. Ad. 



8-12. Ad., hgr. 



& yg- 



Lambarene, Ogowo. 

 Benito River, Spanish Guinea. 

 Efulen, S. Cameroon. 

 Lnndo, Luali R., Portuguese 

 Congo. 



R. 13. N. Walker, Esq. (C). 



Miss Kingsley (C). 

 G. L. Bates, Esq (C.) . 



Dr. W. J. Ansorge (C). 



Fig. 79. 



Maslacemlehis flavomarginatus. 

 Type. |. 



15. MASTACEMBELUS BATESII. 

 Bouleng. Ann. & Mag. N. Ii. (8) viii. 1911, p. 637. 



Depth of body 15 to 16 times in total length, length of head S to 9 

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

 its distance from head 3 to o\ times length of latter Snout 3 to 4 

 times as long as eye, ending in an appendage which is a little longer 



