Dutcher — Mammals of Mt. Katahdin, Maine. 71 



woods they swarm. I caught one in my hands in some diapensia turf 

 just below the edge of the tableland, and trapped one on the tableland 

 at 4500 feet. They seem to take oatmeal bait as readily as flesh. 



Sorex albibarbis (Cope.). Water Shrew. 



Two specimens of this rather scarce shrew were caught, one at 2400 

 feet, the other at 3000 feet, but assiduous trapping failed to secure others. 

 A comparison of the two with the type in the National Museum shows 

 them to be perfectly typical. 



Sorex personatus (I. Geoffroy). Northern Masked Shrew. 



One specimen was secured near a spring in the fir scrub on the table- 

 land at 4500 feet. 



Conclusions. 



That the flora of the north basin of Katahdin, of the slopes above 

 timber line, and of the tableland is Hudsonian is evident from the oc- 

 curence there of such plants as Savastana alpina, Phleum alpinum, Poa 

 laxa, Carex bigelovii, Scirpus co'spitosus, Juncus trifidus, Salix uva-iirsi, 

 Salix herbacea, Polygonum viviparum, Armaria groenlandica, Cardamine 

 bellidifolia, Saxifraga comosa, Empetfum nigrum, Betula glandulosa, 

 Rhododendron lapponicum, Chamaicistus procumbens, Cassiope hypnoides, 

 Phyllodoce ccerulea, Mairania alpina, Vaccinium uliginosum, Vaccinium 

 caespitosum, Diapensia lapponica, Veronica alpina, Nabalus nanus, 

 Nabalus boottii, Solidago alpestris, OnapJtalium snpinum, all of which 

 were recorded by the New England Botanical Club party of July, 1900 

 (Rhodora, Vol. 3, No. 30, January 1901), and many of these are rather 

 Arctic than Hudsonian. 



From the species of mammals found it is evident that the entire Katah- 

 din region is covered by the Canadian mammalian fauna, with the possible 

 exception of Synaptomys sphagnieola Preble. The first recorded specimen 

 of this species was taken in the Canadian zone near the foot of Mt. 

 Washington, the second and third, the only others, in territory that so 

 far as altitude and temperature are concerned should surely be con- 

 sidered as Hudsonian. From the evidence at hand — the occurence of 

 this animal with Hudsonian plants, with indications of a colony of some 

 size, at a very recent date, and its absence from surrounding Canadian 

 territory — it seems probable that it is a Hudsonian form, and that it oc- 

 cured in the lower zone on Mt. Washington, as Mr. Preble has suggested, 

 a wanderer from its native belt. 



