OLFACTORY AND GUSTATORY ORGANS 905 
tains the pointed character of the claw. The corium of the sides of the wall bears 
small laminz 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 
are olfactory in character. Olfactory nerve-fibers ramify in the vomero-nasal 
organ. 
The gustatory apparatus presents no special features of importance. 
