128 THK NAUTILUS. 



Polygyra elevatit Say. Four dead sliells only, in drift near the 

 river. 



Polygyra thyroides Say. Two dead and one living, on the hill side. 



Polyyyra barbigera Redf. A numerous colony under one log only, 

 evidently in their winter quarters. 



Polyyyra stenotrema Fer. A small number, not common and gen- 

 erally distributed. 



Polygyra stenotrema exodon Pils. Very common under the logs 

 and loose stones. (Determined by Bryant Walker.) 



Polygyra hirsuta Say. One or two specimens only. 



Oircinaria concava Say. Five adult and several partly-grown 

 shells found, under leaves, logs and stones on the hill side. 



Om/jhalina fidiginosu Griff' Several specimens, deep in thick 

 beds of leaves. 



Gastrodonta intertextu Binn. A few fine shells, in the earth under 

 the logs. 



Gastrodonta interna Say. Large numbers, in water-soaked logs 

 near the river. 



Zonitoides arborens Say. Quite common, under the bark and in 

 rotten wood. 



Zonitoides elliotti Redf. Large numbers, in water-soaked logs. 



Pyramidida alternata Say. A strongly-ribbed variety. Quite 

 plentiful, under the large loose rocks. 



Pyramidula perspectiva Say. Quite common, in decayed logs on 

 the hill side. 



Pyramidida striatella Anth. Scarce, in company with P. striatella. 



Helicodiscus lineatus Say. Ten specimens, under bark of dead 

 wood. 



NEW LAND SHELLS OF THE JAPANESE EMPIRE. 



BY H. A. PILSBRY AND Y. HIRASE. 



Helicina sadoensis Pils. & Hir., n. sp. 



Shell depressed and acutely carinate, about equally convex above 

 and below, dull red or reddish-yellow, sculptured with fine, irregular 

 wrinkle-striae and very fine, crowded spirals above and below. Spire 

 low-conic with somewhat convex outlines. Whorls about 4, the last 

 convex below, not descending in front. Aperture oblique, of the 



