196 JOURNAL OF COMPARATIVE NEUROLOGY. 
however, is directed outward and forward to reach the sides of 
the wide pharynx and hence the glossopharyngeal nerve does 
not reach it to effect the typical anastomosis. 
it. Ramus palatinus. 
As intimated above, this nerve does not in Ameiurus arise 
from the ganglionic complex in its customary position between 
the hyomandibular and infra-orbital trunks, but in connection 
with the latter some distance farther cephalad. It separates 
from the ‘‘infero-medial strand’’ extra-cranially before that 
communis bundle has been distributed into the maxillary and 
mandibular nerves (Fig. 4, 7. pal.). It then runs cephalad in- 
ternally of the r. maxillaris and between it and the pseudo- 
branch (Fig. 3) and dorsally of the m. adductor arcus palatini. 
It supplies the mucosa of the roof of the mouth and its taste 
buds cephalad of the region supplied by the posterior palatine 
nerve and including the premaxillary teeth, as described by 
Wricut ('84a, p. 367). 
12. The infra-orbital trunk. 
This complex receives the ventral lateralis root for the r. 
buccalis, the motor trigeminus and the general cutaneous roots 
for the supero-lateral strand, and the communis root for the 
infero-medial strand. The latter gives off the r. palatinus, as just 
described, and then combines with the supero-lateral strand to 
form the maxillary and mandibular rami, the latter receiving 
all of the motor fibers and each nerve receiving both types of 
sensory nerve fibers in approximately equal proportions. The 
mandibular ramus will first be described. 
13. Ramus mandibulans trigemini. 
The motor component of the supero-lateral strand lies 
laterally of the general cutaneous component and before this 
strand loses its individuality a bundle leaves the motor compo- 
nent (Fig. 5, ~ 2. a. p.) for the m. dilator operculi and the m. 
levator arcus palatini. Another and larger motor nerve follows 
soon (Fig. 4, 7. ad. man.), running out over the origin of the 
slip of the m. adductor mandibulae which functions as the ad- 
