2;*6 



ANATOMY OF VERTEBRATES. 



Iiilxc, figs. 148, 149, 4, arises from the mastoid, and is inserted 

 into the postero-inferior angle of the tympanic and into the begin- 

 ning of the eustachian tube. 



The following are muscles of the hyoidean arch and appen- 

 dages. The mylohyoideus, fig. 153, 13, extends transversely between 

 the mandibular rami, and is attached to the hyoid by its median 



152 



Muscles and viscera in situ, Erom below, Emys Europcca. xxxviii. 



raphe. The omohyoideus, figs. 150, 152, 14, arises from the 

 coracoid, and is inserted into the basi-, cerato-, and thyro-hyals. 

 The geniohyoideus, figs. 150, 152, 15, 16, arises from the back part 

 of the symphysis mandibulae ; is united to its fellow as far back 

 as the basihyal, and there diverges to its insertion into the cera- 

 tohyal. The hyomaxillanris, fig. 150, 16, arises from the articular 

 element and is inserted into the ceratohyal. The genioglossus, 



