57S 



TELEOSTEI 



Fig. 364. 



A, dorsal view, and B, Left-side view of the skull and pectoral girdle of Silurus glanis, L. 

 (After Juge, slightly altered.) ait, articular ; b, barbel ; or, branchiostegal ; cl, eleithrum ; <7. 

 dentary ; epo, epiotic ; eth, mesethmoid ; fr, frontal ; Km, liyomandibular ; iop, interopercular ; 

 mx, maxilla ; »a, nasal ; op, opercular ; jnnx, premaxilla ; pop, preopercular ; pst, post- 

 temporal ; pt, pterygoid ; ptf, postfrontal ; pto, pterotic ; q, quadrate; /•, radial ; sob, sub- 

 orbital; sue, supraoccipital : t.v, transverse process of the compound first vertebra abutting 

 against the eleithrum. 



