Helix albolabris. Say. Large, imperf orate, lip broad, 

 common. Dentate variety rarer, with a small tooth 



iftyroides. --$/. Large, perforate, tooth on pillar 

 Jip-- :. : ,\. *\ 



, flattened, perforate, teeth 



small. Ravines. 



pulchella. Muller. Wide mouth, minute, white. 

 Low lands. 



The following three genera are of small cylindric shells, 

 and except the first, difficult to find. Mostly with teeth. 

 Cionella subcylindrica. L. Brown, shining. Gardens and 



lowlands. Have found many hid in pi urn -stones in 



the fall. Larger than the following. 

 Pupa pentodon. Say. Mouth with five teeth, whitish, 



rare. 



contracta. Say. Mouth contracted, toothed, white, 



frequent. 



corticaria. Say. Slender, glassy. Onondaga and 



Skaneateles. 

 Vertigo ovata. Say. Ovate, dark chest nut, common. Wet- 



grounds. 



ventricosa. Morse. Similar, smaller, rare. Split 



Rock. 



Bollesiana. Morse. Ovate, almost translucent. Split 



Rock. 



Gouldii. Binney. Ovate, light chestnut, Split 



Rock, 



simplex. Say. Toothless, chestnut. Split Rock. 

 The Succineas, or Amber Shells, are almost amphibious, 

 in wet places and have pellucid shells with large apertures. 

 ^Succinea ovalis. Gould. Oval, colorless to orange, com- 



mon. 



avara. Say. Shorter, stouter, with bristles. Seneca 



river. 



obliqua. Say. Large, yellow,very oblique, common. 



Totteniana. Lea. Smaller and greener, less com- 



mon. 



The following snails have thin lips and shells. 

 IZonites fuliginosus. Grif. Large, brown, polished, com- 



mon. 



inornatus. Say. Similar, smaller and lighter. 



Rocky woods. 



