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buccalis passes anteriorly and comes into close relation with an- 
other branch of the ophthalmicus profundus. I find no evidence 
that any anastomosing, such as Wilder 11 described, occurs between 
these two nerves except between some of their minute twigs. The 
buccalis branch supplies the infra-orbital neuromasts at the end 
of the snout. The supra-orbital division of the main trunk of the 
dorsal VII divides into a ventral branch, consisting entirely of 
lateralis fibers, and a dorsal branch containing both lateralis and 
general cutaneous fibers. The latter branch divides into a number 
of smaller divisions supplying the skin and the neuromasts of the 
supra-orbital series posterior to the eye. It should be noted that the 
transverse line of four or five neuromasts just at the posterior edge 
of the eye belongs to the infra-orbital series. The ventral branch 
passes anteriorly and dorsally and supplies the neuromasts of the 
orbital region, and then anastomoses with the median nasal branch 
of the ophthalmicus profundus. The mixed nerve thus formed 
supplies the skin and the supra-orbital series of neuromasts of the 
anterior dorsal region of the head. 
The lateral line fibres of the tenth cranial nerve in Amphiuma 
enter the brain by the anterior root of the vagus ganglion. With 
them are associated the motor and communis components of the 
glossopharyngeal nerve. The lateralis fibers enter the medulla 
by two rootlets. At this level the lateral line lobe has nearly dis- 
appeared and the two rootlets correspond to the middle and 
the ventral rootlets of the dorsal VII. Four nerves containing 
lateralis fibers leave the vagus ganglion. The anterior of these is 
the R. supra-temporalis, composed exclusively of lateralis fibers. 
Before reaching the occipital series of neuromasts it anastomoses 
with the R. auricularis and thus comes to possess general cutaneous 
fibers. The auricularis branch leaves the vagus ganglion just 
posterior to the supra-temporalis. It contains both lateralis and 
general cutaneous fibres. After the anastomosing the combined 
nerves supply ten or twelve neuromasts in the occipital region. 
The R. lateralis medius leaves the posterior end of the vagus gang- 
lion and passes posteriorly in a nearly straight line. It supplies the 
neuromasts of the median series of the trunk. Shortly after 
leaving the ganglion it gives off the R. lateralis superior that sup- 
plies the dorsal series of neuromasts of the trunk, not including 
those of the occipital region. The R. intestino-accessorius, com- 
11. Wilder, H. H. Die Nasengegend von Menopoma alleghaniense und Amphiuma tri- 
dactylum. Zool, Jahrb., Abtheil. Anat., Bd. V. 1892. 
