TUX 



Fig. 377.— Skeleton of frog. The half of the pectoral girdle, and 

 fore- and hind-Umb of the right side, are not shown. 



mx. Premaxilla; mx., maxiUa ; n., nasal; sph., sphenethmoid ; 

 p.f., parieto-frontal ; P.O., pro-otic; pt pterygoid; q.]., 

 quadrato-jugal; s?.. squamosal ; (?., quadrate ; c. columella 

 auris ; A., atlas ; t.p., transverse process ■ S.V.. sacral vertebra 

 U., urostyle; S.sc, supra-scapula ; H., humerus ; K.C/., radio 

 uh^a; CA, carpals; Mc, metacarpals ; /;., ihum ; /s. ischium ; 

 F., femur; T.F., tibio-fibula ; C«., calcaneum ; /Is., astragalus ; 

 C.', calcar ; Mt., metatarsals. 



