131 



MASTACEMBELID.?'. 



mouth extending to below anterior third or centre of eye ; no pvir- 

 orbital spine ; 2 or 3 small praeopercular spines. Dorsal XXIX- 

 XXXII 70-80 ; spines very short, last scarcely longer tlian eye ; 

 distance between first spine and head | to | length of latter. Anal II 

 70-80 ; first spine minute, often very indistinct. Caudal obtusely 



Fig. 87. 



fiiMji»r i ( i if . ^n,nj i 





s ^t ^t tk r m -^grm--4p y 



Alastacenibelus brtvicavda. 

 Type, Assobam. i|. 



pointed. Pectoral | length of head. Scales very small, l.j-17 l)etwo('ii 

 origin of .soft dorsal and lateral line ; latter formed of a few tubules, 

 widely separated from one another. Olive-brown above, usually witli a 

 more or less distinct dark brown baud on each side of tlie back above 

 the lateral line, and a vertebral series of small dark brown spots 

 corresponding with the spines ; sides mottled with dark brown ; caudal 

 region marbled witli dark brown, with light spots towards tiic caudal 

 fin, which bears one or several large black spots and is edged with 

 whitish ; yellowish beneath, sometimes with a brown network. 



Total length 200 millim. 



South Cameroon. 



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



1-5. Types. 



tVO. Types. 

 10-12. Types. 

 i:?-15. Tv])e?. 



Ki-ibi U. 

 Ziina Country. 

 .T:i B. at Bitye. 

 I'uriiliii n. at A-iSol)am. 



2;-). MASTACEJIBELUS liETKJULATUS. 

 Bonlouo-. Ann. .V Mag. N. H. (8) viii. 1011, p. G38. 



? Maxtareml/chis criijilacanlhas (non Giintli.), Steinil. Dciiksclir. Ak. Wicn, y.\\. 

 187'.t, p. IG. 



Depth of body 11 to 12 times in total length, -length of head 7 to 7^ 

 times. A'ent equally distant from head and from caudal, its distance 

 from former 3 times its length. Snout 3 times as long as eye, ending 

 in an appendage which is \\ times as long as eye ; mouth extending to 

 below posterior nostril ; no pra^orbital spine ; two strong pr?copercular 

 spines. Dorsal XXXI-XXXII 90 ; spines extremely short, last longest, 



