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198 JOURNAL OF CoMPARATIVE NEUROLOGY. 
the geniohyoid and intermandibular muscles. Both of these 
muscles are said by Wricut (’84a) to be innervated by the 
facialis in A. catus; but there is really no opportunity for con- 
fusion in my specimens, as is the case with so many teleosts, 
since this motor nerve does not at any point come into relation 
with the facialis. Two other branches supply the mental and 
post-mental barblets respectively and the remainder of the 
nerve supplies the middle of the lower lip, the lower breathing 
valve and the teeth, all of these regions being plentifully sup- 
plied with taste buds. The barblets are supplied by fine fibers 
(chiefly communis, without doubt), as Srannius mentions (’49, 
p. 46) in the case of Silurus. The r. mandibularis V_ most 
emphatically does not supply the mandibular lateral line canal, 
as COLLINGE states (’95, p. 281). 
4. Ramus maxillans. 
The way in which this nerve receives its communis and 
general cutaneous components has already been described. But 
proximally of this level, while the supero-lateral and infero- 
medial. strands are still distinct, a slender bundle is given off 
from each of them. These unite to form a nerve comparable 
with the accessory maxillary nerves of StronG’s description of 
the tadpole of the frog. (Figs. 2, 3, 4, 5, ac. mx.) It runs 
out laterally over all of the other members of the infra-orbital 
complex, laterally of the oculomotorius, mesially of the buccal, 
but at a slightly more dorsal level than either of these, and 
follows closely the course of the outer buccal branch, with 
which it finally fuses intimately. The fibers of both nerves are 
distributed in many branchlets to the skin behind, under and 
above the eye, the lateralis fibers to small pit organs, the com- 
munis fibers to the terminal buds which are very abundant at 
the edges of the eye, and the others to the skin in general. 
Some probably run out on to the cornea, though this was not 
actually observed. This nerve very clearly corresponds with 
the general cutaneous fibers distributed with the outer buccal 
branch of Gadus and probably with those from the r. ophthal- 
micus superficialis V accompanying the twig marked cz/. on 
