140 University of California Publications in Zoology. [Vol. 7 



show the wide spreading zygomatic arches to be a constant 

 feature, the marten of the Alexander Archipelago should be 

 considered a distinct species. 



The skull secured measures as follows: occipito-nasal length 

 77.5 ; basal length 75 ; palatal length 42 ; post-palatal length 33 ; 

 zygomatic breadth 51.5; width across post-orbital processes 26; 

 interorbital constriction 17.2. 



We failed to obtain very definite information as to the distri- 

 bution of the species over these islands, where it does not appear 

 to be abundant at any point. The above mentioned individual 

 was the only one caught during the season by the man who 

 secured it, and he apparently knew of just one other captured in 

 the vicinity during the same period. Tracks of a single indi- 

 vidual were seen in newly fallen snow on Kupreanof Island; at 

 no other point did we personally meet with the species. 



Putorius cicognani alascensis Merriam. Alaska Weasel. 



But three weasels were secured, all that were seen during the 

 summer, one from Zarembo Island (no. 8815), one from Mitkof 

 Island (no. 8816), and one from the Taku River (no. 8817). 

 Our Indian friend at Three-mile Arm, told us that on the Kake 

 Islands weasels were very scarce. During the past winter 

 (1908-9) he had caught none; the winter before he got seven. 

 The one secured on Zarembo Island entered my tent and carried 

 away a shrew. It returned t^e next day, and catching sight of 

 it in the wood pile I shot it. The Mitkof specimen was seen 

 darting through a tangle of drift on the beach, and by squeaking 

 in the manner commonly used in attracting small birds I easily 

 induced it to return and expose itself. At this point I lost a 

 number of mice, carried away or partially eaten in the traps, 

 in a way that made me believe weasels were responsible. 



Island specimens, compared with a single individual from 

 Helm Bay on the mainland, exhibit the same dental peculiar- 

 ities as do most of the other small carnivores of the islands, a 

 noticeable crowding of the cheek teeth, together with an enlarge- 

 ment of the last upper molar, but two specimens from Juneau 

 and the Taku River, have the same characteristics. 



