94 THE NAUTILUS. 



Lymnoea obrussa Say. Wild Horse Creek, Spivey, Kansas; Sand 

 Creek, Argonia, Kansas. 



LymncBa parva Lea. Tonkawa, Oklahoma. 

 Lymncea techella Hald. Tonkawa, Oklahoma. 

 Succinea avara Say. Spring Creek, Anthony, Kansas. 

 Succinea luleola Gould. Tonkawa, Oklahoma. 

 AgrioUmax campestris Binney. Tonkawa, Oklahoma. 

 Polygyra fraterna Say. Tonkawa, Oklahoma. 



THE MOLLUSCA OF DOUGLAS COUNTY, KANSAS. GASTEROPODA. 



BY G. DALLAS HANNA. 



(^Concluded from p. SS.") 



Polygyra fraterna friersoni Pilsbry. Very rare ; a few specimens 

 identical with specimens of this variety from southern Kansas have 

 been found in this county. 



Bulimulus dealhatus Say. This is evidently the form liquahilis 

 Reeve, but I have not seen specimens of the subspecies to make 

 comparison. It is found rather commonly on open rocky hillsides. 



Pupilla muscorum Linnaeus. From river drift at Lawrence. 



Pupilla blandi Morse. A few drift specimens have been picked up. 



Pupilla hehes Ancey. Two specimens found in drift, one at 

 Tecumseh and the other at Lawrence. 



Pupoides marginatus Say. Common everywhere. 



Bifidaria procera Say. Common in open places favorable for 

 mollusks. 



Bifidaria procera eristata P. &, V. Rare this far east. 



Bifidaria hordeacella Pilsbry. One specimen found in river 

 debris at Lawrence. 



Bifidaria holzingeri Sterki. Very rare ; it gives way to the form 

 Bifidaria holzingeri fordiana Sterki. Found in the woods of Blue 

 Mound and elsewhere. 



Bifidaria contracta Say. Common in timber lands. 



Bifidaria armifera Say. Abundant. 



Bifidaria pentodon Say. Found sparingly in the woods. 



Bifidaria tappaniana C. B. Adams. Common on Blue Mound. 



Bifidaria agna P. & V. Very rare ; two specimens from drift 

 debris of the Kansas river at Lawrence. 



