AMPHIBIA. 



71 



10. Ninth nerve ; it receives a branch from the trunk of the par vagum, and from 



the hard portion of the seventh, after this has communicated with the first 

 cervical nerve ; it gives off several branches to the muscles of the tongue 

 and throat, and one that reaches to the end of the tongue, and one to 

 communicate with branches of the third trunk of the fifth, issuing out of the 

 inferior part of the lower jaw. The glosso-pharyngeal, the trunk of the par 

 vagum and the ninth, are so connected together that it is difficult to 

 determine precisely to which nerve each branch belongs ; they have been 

 with great care apportioned to their respective nerves in this description ; 

 their final distribution will be seen in Plate XX. 



11. First cervical nerve; it communicates with the hard portion of the seventh 



and the ninth, and then passes towards the angle of the jaw, distributing 

 branches to the thin muscle, the costa-maxillary, and the continuation of 

 this over the throat, which resembles the constrictor muscle in the turtle 

 and the cutaneous in man. 



