LÖNNBERG, TAXONOMIC NOTES ABOUT PALEARCTIC REINDEER. 7 



which especially affects tlie maxillaries which tlien again in 

 front of this depression are rather strongly eJevated and ha ve 

 an inflated appearance. In tbe Swedish and Xorwegian wild 

 Reindeer this depression is very slight if at all visible, and 

 the maxillary in front of this is not inflated (fig. 2). 



The lachrymal vacuity is very small in the Finland Rein- 

 deer (conf. figs 3 & 4) only measuring 13 by 9 mm. Partly 

 this smallness may be due to the age of the specimen, but 

 nevertheless the diffe- 

 rence in size when com- 

 pared vvith Swedish speci- 

 mens is so great that it 

 must be taken as a di- 

 stinguishing characteristic. 

 The measLirements of the 

 vacuity in two skulls of 

 Swedish wild Reindeer are 

 resp. 23 X 13 and 23 X 12 

 mm. 



The lachrymal fossa 

 appears to be shallower, 

 only two thirds as deep as 

 in the Swedish Reindeer 

 when the vertical depth 

 is measured in a similar 

 way in both. 



In consequence of the 

 inflated shape of the up- 

 per anterior part of the 

 maxillary bones the ante- 

 rior nasal opening has 

 quite another shape in 

 the Finland Reindeer (fig. 

 4) than in the Swedish Reindeer (fig. 2). In the former the 

 greatest width (56 mm.) is situated at the suture between 

 os supramaxillare accessorium and the premaxillary and is 

 from there gradually narrowed in a forward direction (conf. 

 fig. 4). In the Swedish Reindeer the greatest width (resp. 

 49 and 47 mm ) of the anterior nasal opening is situated 

 nearly at its middle and is narrowed as well upward as 



Fig. 4. Facial portion of skull of Rangifer 



tarandiis fenniciis seen from above 



^'a nat. sig. 



