170 



il. J. Anderson, 



I have seen a skull of C. Lupus in wliicli the Maxilla touched the 

 Nasals tor a veiT short distance. Take a Canis familiaris (Var.) 



Naso-frontal articulation . . . . =12 mm 



Naso P. M =25 mm 



Naso M . =^ 35 mm 



The Premaxilla 60 mm long. Breadth along- alveolar margin 

 30 mm the Naso-frontal articulation at its summit is 10 mm higher 

 than the summit of the Maxillo-frontal. In a St. Bernard dog, the 

 maxillo nasal suture was 60 mm long. 



Hyaena has the premaxillae just touch- 

 ing the frontals, whilst the fronto-nasal summit 

 is 5 mm below the level of the front 

 maxillary suture. 



The Premaxillae of the Common Seals 

 (Phoca vitulina and Halichaerus grypus), and 

 Cystophora, as well as of the walrus do not 

 articulate with the frontals. The Premaxilla, 

 although 90 mm long and 7 mm broad above, 

 in Cystophera, and 10 mm broad behind, is 

 35 mm removed from the nasals. 



The premaxillae touch the frontals in 

 Herpestes, these bones approach in Genetta 

 tigrina and Mustela Marten, in the former they sometimes touch. 

 The frontals and Premaxillae almost touch in Procyon. The elon- 

 gation is not sufficient to bring the premaxillae so high in Mellivoi-a 

 cap en sis. 



In Procyon lotor. the fronto nasal articulation =^17 mm 

 • — and Premaxillo-nasal . . . = 15 mm 



Owen refers to the articulation of the Premaxilla Avith the frontal 

 in Bears. He says the facial part of the skull is lungei- in Ursus 

 ferox than in Ursus arctos, and the Nasal processes (Antlitzäste) are 

 much longer and more slender, and articulate directly with the an- 

 terior processes of the frontals. In the bi'own l)eai'. the maxillaries 

 articulate with a small part of the nasals and shut out the prema- 



