OLFACTORY AND GUSTATORY ORGANS 905 



tains the pointed character of the claw. The cerium of the sides of the wall bears 

 small laminte which converge to the corium of the sole. The latter is papillated. 

 When the flexor muscles are inactive, the distal phalanges and the claws are main- 

 tained in dorsal flexion by two elastic ligaments. These arise from the tubercles 

 at the proximal end of the second phalanx and converge to the dorsal aspect of the 

 ungual crest of the third phalanx. 



OLFACTORY AND GUSTATORY ORGANS 



The olfactory region lies above the lamina transversa, which separates it from 

 the naso-pharyngeal meatus. The mucous membrane is distinguished by its 

 thickness and yellow color, and is very extensive. It covers about half of the large 

 ethmoturbinates, and one-third to one-half of the septum nasi. The ethmotur- 

 binate which projects into the frontal sinus and the adjacent inner wall of the sinus 

 is olfactory in character. Olfactory nerve-fillers ramify in the vomero-nasal organ. 



The gustatory apparatus presents no special features of importance. 



