H 



LAND AND FRESH WATER MOLLUSKS 



TABLE III. DISTRIBUTION OF NORTHEAST ASIATIC LAND 

 AND FRESH WATER SHELLS. 



Name of Species. 



Zoogenites harpa Say 



Vallonia adela West 



Vallonia pulchella Miiller 



Vallonia costata Miiller 



Helicigona subpersonata Midd 



Hygromia hispida L 



Hygromia rufescens Penn 



Hygromia stuxbergi West 



Eulota arcasiana Crosse 



Eulota maackii Gerstf. 



Eulota middendorffii Gerstf. 



Eulota ravida Benson 



Eulota schrenckii Midd 



Eulota selskii Gerstf. 



Eulota weyrichii Schrenck 



Pupilla muscorum L 



Vertigo alpestris Alder 



Vertigo arctica Wall 



Vertigo krauseana Reinh 



Vertigo borealis Morel 



Cochlicopa lubrica Miiller 



Vitrina exilis Morel 



Vitrina pellucida Miiller 



Vitrea radiatula Alder , 



Euconulus trochiformis Montagu . 



Zonitoides arboreus Say 



Limax agrestis L 



Limax hyperboreus West 



Arion hortensis F6r 



Arion ater L 



Incilaria bilineata Benson 



Pyramidula ruderata Studer 



Punctum conspectum Bland 



Punctum ? floccula Morel 



Sphyradium edentulum Drap 



Succinea putris L 



Succinea chrysis West 



Lymnaea stagnalis L 



Lymnaea peregra Miiller 



Lymnsea auricularia L 



Lymnsea ovata Drap 



Lymnsea kamchatica Midd , 



Lymnsea palustris Miiller 



Lymnsea truncatula Miiller 



Planorbis limophilus West 



Planorbis nitidus Muller , 



Planorbis contortus Miiller 



Planorbis carinatus Miiller 



Planorbis borealis (Lov6n) West. 



Planorbis kamchaticus West 



Planorbis mSllendorffii Dyb 



Planorbis albus Miiller 



Physa fontinalis L 



o 

 o 

 o 

 o 

 o 

 o 

 o 

 o 

 o 

 o 

 o 

 o 

 o 

 o 

 Sak. 

 o 

 o 



