388 



CAENIVOEA 



1877. Putorius erminea Coues, Fur-bearing Animals, p. 109 (part). 

 1910. Putorius (Ictis) ermineus Trouessart, Faune Mamm. d'Europe, p. 78 

 (part). 



Type locality. — Upsala, Sweden. 



Geographical distribution. — Scandinavian Peninsula, except 

 extreme south of Sweden ; eastern limits of range unknown. 



Characters. — Region extending from front of rostrum to 

 and including postorbital processes relatively broad and short; 

 size below maximum for the European races : condylobasal length 

 of skull in adult male, 43 • 4 to 48 ■ 6 mm. ; mandible in adult 

 male, 23 to 26 • 4 mm. ; basal portion of tail (in summer pelage) 

 usually lighter below than above. 



Measurements. — Hind foot in each of two males from the 

 vicinity of Christiania, Norway, 43 mm. ; in a female from the 

 same region, 35 mm. Male and female from Nordre Fron, Lower 

 Gudbrandsdal : hind foot, 43 and 34 mm. Two males from 

 Lappmark, Sweden : hind foot, 44 and 46 mm. Adult female 

 from TJpsala, Sweden : hind foot, 36 mm. Adult male from 

 Stockholm, Sweden : hind foot, 44 • 6. For cranial measurements 

 see Table, p. 392.* 



Specimens examined. — Twenty-five, from the following localities : — 

 Sweden: Karesuando, Lappmark, 1 (U.S.N.M.); Wilhelmina, Lapp- 

 mark, 1 (U.S.N.M.) ; Jemtland, 1 (U.S.N.M.) ; Upsala, 1 (U.S.N.M.) ; 

 Stockholm, 2 (U.S.N.M. and Stockholm). 



Noeway : Aker, near Christiania, 2 ; Brekkebygden, Trondhjem, 1 ; 

 Nordre Fron, lower Gudbrandsdal, 2 ; Marestuen, Fillef jeld, Bergen, 1, 

 Bgersund, Stavanger, 13. 



Remarks. — The Scandinavian form of Mustela erminea is 

 distinguishable from the other European races by its slightly 

 smaller size and by the broader rostro-frontal region of the skull, 

 characters which appear to be fairly constant. Of the other 

 races it perhaps most closely resembles M. erminea ricin'se from 

 the islands of Islay and Jura, west Scotland. The white winter 

 coat is normally assumed throughout the range of this form. 



<5, 6 juv. Aker, Christiania, Nor- Christiania Museum 93. 3. 1. 2, 4. 



way. (e). 



9. Brekkebygden, Trond- Christiania Museum 93. 3. 1. 3. 



hjem. (e). 



<5, 9. Nordre Fron, Gudbrands- Christiania Museum 93. 3. 1. 5-6. 



dal. (e). 



9. Marestuen, Fillef jeld, E. B. Alston (p). 79.9.25.21. 

 2,500 ft. 



13 skulls. Egersund, Stavanger. K. H. Schaanning(c). 11.6.3.22-34 



* In eight skulls of males from Egersund, Stavanger, Norway (all 

 sutures closed, teeth slightly or not worn), received after the Tables were in 

 typo, the averages and extremes are as follows : condylobasal length, 44-2 

 (43-4-45-2); zygomatic breadth, 24-2 (23-6-25-4); mandible, 23-8 (23 -0- 

 24-8). Two females from the same locality: condylobasal length, 35-4 

 and 38-0; zygomatic breadth, 18-6 and 20-0; mandible, 18-2 and 19-2. 



