Nos. IAND2.] ANATOMY OF SCOMBER SCOMBER. 261 



Amia, excepting only that a posterior branch, sent to the inner 

 surface of the hyoid arch in Amia, could not be established in 

 Scomber. This fourth branch of the maxillaris inferior of Amia, 

 in whole or in part, combined perhaps with one or with both of 

 the branches called by me r.ghs and r.ghi in that fish, was con- 

 sidered by me as the probable homologue of the nerve described 

 by Pinkus (No. 53), in Protoptcnis as the inferior branch of the 

 palatinus facialis. This palatine nerve in Protoptents is consid- 

 ered by Pinkus as the homologue of the chorda tympani of higher 

 animals ; and the mandibularis internus trigemini of Amia was con- 

 sidered by me as the only nerve in that fish that could be the 

 homologue of the chorda, this latter nerve being considered as 

 a prespiracular one (No. 4, pp. 638, 640, 748). 



Herri ck (No. 36), in his investigation of the cranial nerves of 

 Meiiidia, makes a suggestion regarding the chorda tympani that 

 indicates that he also is, or was, under the impression that that 

 nerve might be found in fishes as an apparent branch of the tri- 

 geminus. This is found in a statement made while speaking of 

 the fasciculus communis component of the trigemino-facial com- 

 plex of the fish. He there says : " Certain fibers from the r. maxil- 

 laris supply the lining of the mouth and are probably derived from 

 this component (chorda tympani?)." In a later publication (No. 

 38) he says that a part of that sensory portion of the facialis that 

 is derived from the fasciculus communis is distributed to "the r. 

 maxillaris V. to taste buds within the upper lip." He does not 

 again refer to the branch so distributed as possibly containing 

 chorda tympani elements, and its distribution to the upper lip 

 instead of to the lower jaw, if correct, would seem to preclude its 

 being that nerve. 



Goronowitsch, in his work on Lofa, says (No. 32, p. 39) that 

 the nervus maxillaris inferior of that fish "enthalt . . . die Ele- 

 mente von zwei, mit einander verschmolzenen Nerven, des N. max- 

 illaris inferior und des N. palatinus von Acipenscr." In his work on 

 Acipenser he says (No. 31, p. 482) : "Ein N. palatinus trigemini 

 existirt beim Sterlet iiicht ; der N. palatinus ist ausschleisslich ein 

 Ast des Facialis"; and then, "Da kein N. palatinus anterior ange- 

 nommen werden konnte, so musste der Nerv [N. palatinus poste- 

 rior (van Wijhe)] als ein N. palatinus facialis bezeichnet wer- 



