258 ALUS. [Vol. XVllI. 



Auiia, seems to belong to the maxillaris inferior rather than to the 

 maxillaris superior. 



In Gadits Cole describes the oticvis facialis as a branch of the 

 so-called outer branch of the buccalis. It lies at first in the orbit, 

 as in Scomber, and then, as in that fish, traverses a canal in the 

 postorbital ossification and so reaches the dorsal surface of the 

 skull. There it is said to run backward dorsal to the squamosal 

 but ventral to that section of the membranous infraorbital canal 

 that lies on the dorsal surface of that bone, and reaches organ No. 

 1 1 infraorbital which it innervates. The nerve thus does not pierce 

 the squamosal in any part, and Cole suggests that the organ it 

 innervates may be the postfrontal organ of the line, that organ 

 having left the postfrontal bone and invaded the squamosal. After 

 giving off the ramus oticus, the outer branch of the buccalis is said 

 to send branches to organs 10 and 9 infraorbital, and then to con- 

 tinue a considerable distance and finally to innervate organs 8 and 

 7 infraorbital. Organs 10 and 9 are said to lie in the postorbital 

 bones, organs 8 and 7 in suborbital ones. That part of the outer 

 buccal branch of Cole's descriptions that lies distal to the ranms 

 oticus is thus approximately the equivalent of the branches that 

 supply organs 11 to 14 infraorbital in Aniia, those five organs to- 

 gether with the otic organs forming two of the four groups of 

 buccal organs that I considered as distinctly independent of each 

 other in so far as the manner of their innervation is concerned 

 (No. 2, p. 514). The inner buccal branch of Cole's descriptions 

 of Gadiis must accordingly represent that part of the buccalis of 

 Amia that innervates organs i to 10 infraorbital. These organs 

 in Amia were separated by me into two groups, and the nerves 

 that innervate each group probably correspond to the upper and 

 lower branches of Cole's inner buccal nerve. Cole's upper branch 

 corresponding to that terminal part of the buccalis of Amia that 

 innervates organs i to 4 infraorbital, and to that part of the buc- 

 calis of Scomber that innervates organ No. i supraorbital. This 

 has already been referred to in one of my earlier works (No. 8), 

 as w^ell as in the earlier parts of the present work. 



The Ramus iMaxillaris Inferior Trtgemixt (inif), after 

 separating from the maxillaris superior, runs downward and for- 

 ward internal to the superficial division of the adductor mandib- 



