100 



THE NAUTILUS. 



Pupa muscorum in untold numbers, Cochlicopa lubrica Miill, Vitrea 

 hanimonis Strom, Zo)iitoides arboreus Say and Snccinea obliqua Say. 

 At Southwest Harbor Village, under planks, by the road-side I 

 found: 



Vertigo ventricosa Morse. 

 Sphyradiam edendulum Drap. 

 CoMicopa lubrica Miill. 

 Pyramidula striatella Anth. 

 Vallonia excentrica Sterki. 



Viirea hammonis Strom, 

 Zonitoides arboreus Say. 

 Zonitoides milium Morse, 

 Vitrina limpida Gld. 

 Euconuhis fidvus Miill, 

 Strobilops labyrinthica Say. 



The great majority of the species that I found were in Sea Wall 

 and McKinley Villages. These two villages were about three miles 

 apart. Here the conditions w'ere the same. New board-walks were 

 being built along the road and the planks of the old one were thrown 

 irto the gutter and into the adjoining fields. I found the following 

 under these boards or in the grass near the boards : 



Sea Wall Village. McKinley Village. 



Vallonia excentrica Sterki, abun. Vallonia excentrica Sterki. 

 Pupa muscorum Ij., abundant. Vertigo ventricosa Morse. 



Cocidicopa lubrica Miill, abun 

 Vitrina limpida Gld. abun. 

 Vitrea hammonis Strom, 

 Euconul as fidvus Miill. 

 Zonitoides arboreus Say, 

 Zonitoides exiguus Stimp, 

 Agriolimax compestris Binn. 

 Pyramidtda striatella Anth. 

 Helicodiscus lineatus Say. 

 Succinea obliqua Say, 

 Succinea avara Say. 

 Acanthimda harpa Say 



Cochlicopa lubrica Miill. 

 Vitriiia limpida Gld. 

 Vitrea hammonis Strom, 

 PJucdntdus fulvus Miill. 

 Zonitoides arboreus Say, 

 Agriolimax agreslis L. 

 Agriolimax compestris Binn. 

 Pyramidula striatella Anth, 

 Helicodiscus lineatus Say. 

 Succinea obliqua Say. 

 Succinea avara Say. 



Acanthimda harpa Say. 

 I visited a number of islands but ex{)lored oidy a few carefully. 

 I spent an hour on the evergreen woods of Suttons and found a few 

 Zonitoides arboreus Say. An hour on Baker's Island, an hour on 

 Black Island and six hours on Little Goat's Island, revealed me noth- 

 ing. On Little Ram Island, a rock about a hundred feet long cov- 

 ered with about three feet of soil which supports a number of dead 

 spruce trees, I got Zonitoides arboreus and Succinea obliqua under 

 some dead wood. On Greening's Island, where I lived and explored 



