Land and Fresh W'ater Mollusks of 

 Eastern and Southern New York. 



Vitrina limpida. G$uld. Small, wide aperture. 



Helix hirsuta. Say. Like H. monodon, lip cleft. 



hortensis. Muller. Yellow and red. Long Island, 

 nemoralis. L. Apartare black. Long Island, 

 harpa. Say. Small, conical, ribbed, fragile. Found 

 by me at the Thousand Islands, in 1883. 



Limax maximus. L. Introduced. Mushroom beds. 



Pupa fallax. Say. Long, tapering, smooth, brownish. 



armifera. Say. Cylindric, smooth, aperture white, 

 rupicola. Say. Small, elongated, brownish, 

 muscorum. L. Obtuse, dark chestnut. 



Vertigo milium. Gould. Very minute, dark amber. 



Succinea aurea. Lea. Amber, oval. Staten Island. 



Arion fusciis. Mailer. Ashy, a dorsal line. 



Zonites exiguus. Stimpson. Minute, green. 



ferreus. Morse. Minute, light steel gray, 

 suppressus. Say. Depressed, thin, teeth internal, 



Alexia myosotis. Drap. Small, elongate, dark, shining. 



Melampus bidentatus. Say. Ovate, toothed, banded. 



Limnsea ampla. MlgJiels. Large inflated, aperture wide, 

 megasoma. Say. Large, aperture chestnut, 

 gracilis. Jay. Very slender. L. Champlain. 

 galbana. Say. Semi-fossil in calcareous ttffa. 



Ancylus calcarius. De Kay. Large, conic, calcareous. 



fuscus. Adams. Epidermis brown, shell translu- 

 cent. 



Yivipara contectoides. Binney. Green,four brown bands. 

 Anculosa carinata. Brug. Conic, carinate. Varieties. 

 Sphserium rosaceum. Prime. Rosy, polished, sma 



croceum . Lew is. Small, yellow. 



Vermontanum. Prime. Full, oblique, green. 

 Pisidium ventricosum. Prime. Small, globose, yellow. 

 Unio ochraceus. Say. Oval, reddish. 

 Anodonta implicata. Say. Large, inflated. 



excurvata. De Kay. Large, thick, inflated. 



