THALARC'TOS 



299 



elongate. Palate iioticea1)ly broadei' than in Uisus arctos, a 

 character made more conspicuous by the relative weakness of the 

 teeth. Mandible with no sj)ecial [leculiarities except that the 



FIO. 54. 

 Thalnrclos maritimiis. 



lower margin is nearly straight thi'oughout, the posterior concavity 

 being very slightl}' indicated, and lower border of angular process 

 only a little elevated above general outline. 



Teeth. — While the general character of the dentition differs 



