60 JouRNAL OF COMPARATIVE NEUROLOGY. 
/n.—Ramus lateralis narium of ophthalmicus profundus. 
7p.—Lateral division of the ramus palatinus VII. 
m.—Ramus mandibularis V in Amblystoma, maxillo-mandibularis in Rana. 
mn,.—Ramus medialis narium of ophthalmicus profundus V. 
mxc.—Ramus communicans cum N. palatino of maxillaris V. 
mp.—Mesal division of ramus palatinus VII. 
mv.—Mesal division of the ventral terminal branch of the ramus oph- 
thalmicus profundus V. 
mx.—Ramus maxillaris V. 
n.—Internal nares. 
o.—Ramus ophthalmicus profundus V. 
of.—Lateral terminal branch of the ophthalmicus profundus V. 
om.—Mesal terminal branch of the ophthalmicus profundus V. 
os.—Ramus ophthalmicus superficialis VII. 
ov.—Ventral terminal branch of the ophthalmicus profundus V. 
p-—Ramus palatinus VII. 
x.—The nerve formed by anastomosis of / and ov. 
y.—Nerve formed by anastomosis of mp and ovin Amblystoma wi 1 by 
mp and mx in Rana. 
z.—Ear capsule. 
