400 TROCEEDINGS OF THE ACADEMY OF [May, 



iuner flauge, aud the relatively small, flattened aud rectaugular 

 aiidilal biillre declare its affinities to be with caurina and not with 

 americana. It is a pale race of caurina, seemingly out of place in 

 its zoogeographic status, and presenting a puzzling thought as to 

 the relationships of the animal living on the main chaia of the 

 Rockies in British Columbia, which our present knowledge of 

 abieiiaoides certainly indicates should be an ally of americana. 

 Should the marten of the northern arid Rockies prove to be an 

 americana form, as we would naturally predict, at what point then 

 shall we look for the geographic gap which separates it from 

 origenes and where the bridge which connects origenes with its 

 kinsman caurina of the Pacific slope ? These are problems for the 

 " next reviewer." 



Measurements of Type. — ? (recorded by collector): Total 

 length, 612 mm. ; tail vertebrae, 210 mm. ; hind foot, 76 mm. 

 Measurements of an adult male skin, topotype, collected by Setou 

 (from dry specimen): Total length, 676 mm.; tail, 230 mm.; 

 hind foot, 85 mm. Skull (of ? type) : Basilar length, 65 mm. ; 

 zygomatic expansion, 40 mm. Measurements of an old adult ? skull 

 from North Park, N^. 13,985, Coll. Amer. Mus. Kat. Hist., N. 

 Y. : Basilar length, 65 mm. ; zygomatic expansion, 43 mm. ; i)0st- 

 orbital constriction of frontals, 14 mm. 



