104 THE NAUTILUS. 



common and elongated type. The cotype of obliqua examined by 

 me has a specimen of Galerus contortus Cpr. adhering to it, which, 

 like the bivalve, ranges from Alaska to the Santa Barbara Islands 

 of California. All true Clementias are more or less concentrically 

 undulated and have a deep linguiform pallial sinus, both of which 

 features are absent from the so-called G. obliqua. 



NORTHERN IDAHO SHELLS. 



FRANK C. BAKER. 



During the month of September the writer visited various portions 

 of Oregon, Washington, and Idaho. Nearly three weeks of this 

 period was spent in Northern Idaho in the beautiful Kootenai Valley 

 and about Lake Pend Oreille. This region is quite unknown con- 

 chologically and it was hoped that some fine new species of Oreohelix 

 or Polygyra might be found, comparable perhaps to the Sonorellas, 

 etcetera, that our friend Ferriss has dug from the rocks of the Grand 

 Canyon and the stony wastes of Arizona. Evidently we did not 

 tear enough of the mountains to pieces, and so the pleasing sensation 

 of finding a novelty was denied us. Perhaps the fact that we were 

 examining the sturdy young trees of a newly acquired apple orchard 

 (as well as counting the number of boxes of apples we would sell 

 from these trees !) also accounted for our failure to secure a larger 

 number of species. 



Considerable time was given to hunting for snails, and a large 

 number of specimens was secured, but of few species. A more de- 

 tailed and careful search would doubtless increase this number, but 

 the fact seems evident that the forests of pine, hemlock, spruce, and 

 fir in this region do not harbor a large variety of molluscan life. 

 As this is a new region, the list, though small, may be of value. 

 The orchard tract near McArthur, Idaho is a little over 2000 feet in 

 elevation. 



Gircinaria vancouverensis (Lea). Kootenai Orchard, McArthur, 

 Idaho. This snail is not common the only specimens obtained (two 

 in number) being found near our sleeping tent, one under the floor 

 and the other beneath a burnt log. The specimens are smaller than 

 those living to the westward, at a lower elevation. 



