li'G 



JrAST.iCEMCELlD.i:. 



long as eye, cacling in an appendage which is about IJ times as long as 

 eye; month extending to below anterior border of eye; no pneorbital 

 or prsropercular 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 

 -3- lengtli 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 enclosiug light sjiots ; dorsal and anal fins in 

 the adult dark ])roAvn or black, edged with yellonisb, in the young 

 white, spotted with black; pectoral with small dnrk sjiots or cross-bars. 



Total length 310 millim. 



South Cameroon to Toituguese Congo. 

 Gahooii. 



1-2, .-5. Types 

 4. Hot. ' 

 0. ll^r. 

 C. A.I. 

 7. A<l. 

 8-11'. A.I., li< 



& VO-. 



L.-iiiihurcnc, ( );iO\vi\ 

 ]>('nito River, Siiaiii^li Guincu. 

 Et'iilon, S. Caiiieiooii. 

 Lumio, Luali H., rortiigue.so 

 Congo. 



1{. B. N. Walker, Er^.i- (C.)- 



Miss King.sley (('.). 

 (t. L. Bates, Esq ((.'.). 



J)r. W. J. Ansorge (C). 



Fig. :<j. 



MaitacemhehisJfavomargiiKiliis. 

 Tyi,e. I 



l->. MASTACEMBELUS BATESII. 

 Boukng. Ann. & Mag. N. II. (S) viii. I'.Ul, p. i;;}7. 



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

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

 its distance from head 3 to 3^ times length of latter Snout 3 to -1 

 tinres as long as eye, ending in an aiipemhige which is a little longer 



