Mrs<~T,KS OF THE HEAD. 



y 18. M. snbmentalis (Fig. 59 suit]. 



Cuvier, transrerxn*, I.e., p. 588. Duges, 4, sous-mentonnier. Zenker, 

 m. linfftiali* incorrectly brought into connection with /. hyoglossits}. 



This small muscle lies in the anterior angle of the lower jaw 

 between the dentary bones. It consists of trnnsverse fibres which 



58 



oh 



Muscles of the throat, cheat, and abdomen of Rana eteu'enta. 

 tm M. submaxillaris. 



tm' Hinder portion of game arising from the anterior corn a of the hyoid bone. 

 ( For other references see page 



pass from one bone to the other. Below it is covered by the most 

 anterior portion of the m. gubmaxtflaris. 



Its action is to approximate the sides of the lower jaw : according 

 to Duges (/. <?., p. 123), it assists in closing the nostrils, by drawing 

 together the sides of the lower jaw and thus raising the premaxillae. 



