FRINGILLnm 



Fig. 5. Lower jaw, side view : a, cavity for articulation ; 

 b, b, coronoid processes. 



6. Tongue seen from above : a, horny scoop ; b, b, 



extensor muscles. 



7. Tongue, side view : , horny scoop ; 6, extensor 



muscles ; c, flexor muscle. 



