70 THE NAUTILUS. 



GENERAL NOTES. 



Land Shells of Berks Co., Pennsylvania — During August 

 of the present year 1 spent some days in .Amity township, Berks 

 Co., Pa. Only a few hours were given to collecting, the following 

 species being obtained: 



Polygyra albolabris (Say), P. tridentata (Say), P. hirsuta (Say). 



Vallonia pulchella (Miill). 



Bifidaria armifera (Say). 



Pyramidida striatclla catskillensis (Pils.). 



Helicodiscus lineatus (Say). 



Zonitoides arboreus (Say). 



Gastrodonta snppressa (Say). 



Vitrea rhoadsi Pils., V. indentata (Say). 



Agriolimax campestris (Binn.). 



This extends the range of Pyramidula striatella catskille?isis, not 

 hitherto found in Pennsylvania, and adds another locality for Vitrea 

 rhoadsi. The other species are of course common and widely dis- 

 tributed H. A. Pilsbry. 



Physa cubensis in Florida. — The small, slender, glossy 

 Physa of peninsular Florida often goes under the name P. pomilia 

 Conr., in collections. Recognizing that this was incorrect, I gave 

 the MS. name "P. heterostropha peninsula " to the specimens col- 

 lected at Miami by Mr. S. N. Rhoads (this journal, p. 48). On 

 comparing with Antillean forms I find that the species is Physa 

 cubensis Pfr., described from western Cuba H. A. Pilsbry. 



Shells Collected at Oakdale, Morgan Co., Tenn — Dur- 

 ing a few hours stay, the following species were collected on the 

 bluff's along the Emory River. 



Polygyra stenotrema Fer. 



Polygyra exoleta Binn. 2 dead and poor. 



Polygyra wetherbyi Bid. 4 alive and poor. 



Polygyra tridentata Say Var. 4 alive, one dead. 



Polygyra appressa sculptior Chad. Saw many dead ones. 



Polygyra appressa perigrapta Pils. 1 alive — saw a few dead. 



OmphaUna laevigata Pfr. 1 young alive — several dead. 



Gastrodonta interna Say. 



Am sending you one of the tridentata. You will note the teeth are 



