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DESCRIPTION OF FIGURES. 



Reference Letters. 



alv. VII. — ramus alveolaris VII. 

 alv. a. — branch of latter found in one specimen. 

 aur. — ramus auricularis vagi. 

 aur. I. — anterior branch of latter. 

 aur. 2. — posterior branch of same. 

 aur. la. — branch of aur. i. to near first gill. 

 b. VII. — ramus buccalis VII. 

 ch. ex. — nerves to the m. cerohyoideus externus. 



ch. ex. -\- mhp. — nerves .to the mm. ceratohyoideus externus and inter- 

 hyoideus. 



co>n. IX A^ X ad VII. — ramus communicans IX -}- X ad VII. 



dm. — nerves to the m. depressor mandibulae. 



fA. — facialis A. 



gc. — general cutaneous branches of the r. jugularis VII. 



g. sp. I. — ganglion of the first spinal nerve. 



hgl. — N. hypoglossus. 



hmd. — truncus hyomandibularis VII. 



int. — ramus intestinalis vagi. 



IX. — root of the glossopharyngeus. 



IXt. — truncus glossopharyngeus. 



IX, 5, (5, 7, <?, p. — fifth, sixth, seventh, eighth and ninth branches respec- 

 tively of the t. glossopharyngeus. 

 jgl. VII. — ramus jugularis VII. 



It. — ramus inferior. 



lop. — lateral terminal branch of the r. ophthalmicus profundus V. 



Ip. — lateral terminal branch of the r. palatinus VII. 



/. s. — ramus lateralis superior. 



Isd. — dorsal branch of latter. 



»»</(5.»— ramus mandibularis trigemini. 



