130 



former accompanies tlie superior maxillary nerve, receives 

 a bundle of fibres from it as in Menidia, and ultimately 

 supplies pit organs in the region of the nose, as in Menidia 

 and Gadus, and also tbe supposed vestige of the left 

 supraorbital canal with its single sense organ (swp. c"). 

 The latter after a very long course, during which it gave 

 off no branches at all, was ultimately traced to sense 

 organs 1, 2, 3 of the infraorbital canal. 



5. After giving off the E,. buccalis the main trunk 

 of the dorsal lateral line root is continued forwards as the 

 R. ophthalmicus superficialis facialis, forming the 

 remainder of the T. supraorbitalis (r. oph. siq^. vii), and 

 which is closely associated with the nerve of the same 

 name from the trigeminus. It is connected at its origin 

 with the Gasserian ganglion, situated below it. Its course 

 and relations will be seen on reference to the chart, and it 

 is mostly concerned with supplying the 5 sense organs of 

 the supraorbital canal. 



6. Ramus palatinus facialis {pal.). — Arises intra- 

 cranially from the geniculate ganglion proximal to the 

 formation of the Truncus hyomandibularis. It remains 

 within the skull until it reaches the region of the orbit. 

 At first it passes forwards and downwards, very closely 

 attached to the cranial sympathetic from section 536 to 

 494, and ganglion cells really belonging to the latter have 

 been described as belonging to the palatinus. Subse- 

 quently the palatinus passes downwards, and enters the 

 eye muscle canal. It leaves this canal in front and passes 

 far in front of the brain straight across the orbit and 

 above the superior maxillary v. nerve. In the anterior 

 region of the orbit, where it lies over the roof of the 

 pharynx, it turns sharply downwards. During its course 

 across the orbit it gives off branches to the terminal buds 

 in the roof of the pharynx. 



