118 



MASTACEMBELID.E. 



0. MASTACEMBELUS SCLATERI. 



Bouleiig. Pioc. Zool. Soc. 190:5, i. ji. 28, i>l. v. fig. 2. 



Depth of body 11 to 13 times in total length, length of head G to 7 

 times. Vent equally or nearly equally distant from end of snout and 

 from caudal, its distance from head 2^ to 2f times length of latter. 

 Snout 3 times as long as eye, ending in an appendage which is aljout 

 H times as long as eye; mouth extending hardly to below posterior 

 nostril ; a strong erectile spine below the latter ; two strong pneopercuhir 

 spines. Dorsal XXVI-XXVll 85-00; spines short, last longest and 

 nearly twice as long as eye ; distance between first si)ine and head 

 \ to f length of latter. Anal II 80-90. Caudal obtusely pointed. 

 Pectoral not quite ^ length of head. Scales very small, 19 to 21 

 between origin of soft dorsal and lateral line. Olive-brown, whitish 

 on the l)elly; a dark band on each side of the head, passing throngli 



Fig. 71. 



Maslacem lielus nclaten. 

 Type (P. Z. S. 1903). 



the eye, sometimes continued on the anterior part of the body; a series 

 of square or X-shaped dark spots may be present on each side, on the 

 lateral line ; a more or less distinct series of dark light-edged ocelli 

 along the base of the dorsal ; posterior part of dorsal and anal, and 

 caudal black-edged. 



Total length 300 millim. 



South Cameroon. 



l-l. Tyi)cs. 

 5-('>. Hgr. 



7. Hgr. 



8. A.l. 

 y. Skel. 



Near Efuk'ii. 



,I;i 1{. :it Bitye. 

 Esaiiies.T. 



G. L. Bates. E:^q. (C.j. 



