Landacre, Taste Buds of Ajueiurus. 7 



Since both ectodermic and endodermic buds are innervated from 

 the geniculate ganglion and it shows such a diversity in the num- 

 ber of rami of the V and VII nerves used, and since the interest 

 in the relation of ectodermic to endodermic buds centers in the 

 distribution of these nerves, a table has been arranged to show 

 these relations. 



TABLE I. 



Table showing the rami of the V and VII nerves which carry communis fibers in types in which ther 

 have been worked out fully. In this table rami carrying communis fibers are indicated by (x). In the 

 Amphibia and Petromyzon the presence of the ramus or truncus is indicated by ("), and when a ramus 

 is known to be absent it is indicated by ( — ). The rami as outlined here are fairly constant for the 

 Teleosts and Amia and the main rami are also present in the Amphibia and Petromyzon, although no 

 attempt has been made to analyze these and determine their homologies. The ramus oph. profundus 

 is probably not present in Teleosts, and on the homology of the ramus max. acces. and ramus max., see 



COGHILL (oi). 



Ramus oph. prof 



Ramus oticus VII . . . 

 Ramus lat. ace. VII . 



Truncus supra-orbit 



Ramus oph. sup. V 

 Ramus oph. sup. VII 



Truncus infra-orbit 



Ramus mand. V . . . . 

 Mand.ex. V . . . . 

 Mand. int. V ... 



Ramus max. V 



Max. lat. V 



Max. mes. V . . . . 



Ramus max. acce.<:. . . 



Ramus buc. VII .... 



Buc. exter. VII . . 



Buc. inter. VII . 



Ramus palatinus VII . . . . 



Ramus pal. post. VII . . .. 



Truncus hyomand 



Ramus oper. sup. VII 

 Ramus hvoideus VII 

 Ramus mand. ex. VII 

 Ramus mand. int. VII 



'(?) 



