AS A SPECIES 



123 



all very well to say that the two groups present such 

 marked difference of horn that they can always be dis- 

 tinguished. I very much doubt whether such is the case. 

 The variation in horns is so great in different individuals 

 that it does not seem possible to state clearly what con- 



FlC. 2. 



Newfoundland Caribou {Rangifer Terrirnova, Bangs). 



49 points. A perfect head, compact and even. 



Shot Sept., 1904, by J. G. Millais. 



stitutes the disparity between those of the Woodland 

 and the Barren Ground groups. If we accept the 

 difference in horns as evidence of species, we are simply 

 manufacturing trouble for ourselves, for nothing is less 

 constant than the so-called specific form of the antlers of 

 various groups of reindeer. A glance at the drawings 

 of the horns of various types will demonstrate the 



