EINAR LÖNNBERG, SOME SOUTH AMERICAN CANIDJE. 5 



lanicus, just as this measurement is narrowed with increasing 

 age. The breadth of the braincase is comparatively larger 

 in magéllanicus than in lycoides, as it is comparatively larger 



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in a young dog than in an older. The tooth-row of lycoides 

 has not, however, as it seems, lengthened in the same degree 

 as the skull, nor have the carnassials and some other teeth 

 increased in size in the same degree as the skull. An in- 

 dividual anomaly, which, however, is worth noticing is that 



