C YPRINIFORMES 



381 



elk pjnx 



mx 



p*l 



FKJ. 



Skull and anterior vertebrae of Claritis magur, II. B. A dotted line indicates the course of 

 the lateral line according to Pollard, an, anterior suborbiral ; ft, barbel ; ch, lateral cheek-bone, 

 ixjs.sibly preopercular?; eth, ethmoid; fr, frontal, possibly including parietals ; wu-, maxilla; 

 IM, nasal ; pmx, prernaxilla ; pob, postorbital ; prf, prefrontal ; pst, post- temporal ; ptf, post- 

 frontal ; pto, pterotic ; so, suborbital ; soc, supraoccipital, possibly including parietals ; v, 

 expanded processes of anterior vertebrae, partially enclosing anterior chambers of air-bladder. 



Ofi 



FIG. 80S. 



Left-side view of head of Clarias lazera, C. and V., with branchial chamber exposed by 

 removal of operculum. a, accessory respiiatory organs attached to top of gill-arches; an t 

 anterior nostril ; b, barbel ; br, gill-lamellae ; pit, posterior nostril. 



