15 



Fig. m. 



Fig. lY, 



cond cusp as also has the right lateral incisor. Fig. IV shows a less 

 well developed second cusp on the canine {Co) and particularly well 

 marked molar and incisor cusps. In Canis familiaris, Meles taxus and 

 Lutra vulgaris there is in the lower jaw and especially in the last nam- 



