160 MOLLUSC A. 



among sedges and driftwood on the sand beach (25) and among leaves 

 and under logs along the shores of lakes and swamps (26) on Sand 

 Point, under driftwood along the sand beach (34) on North Island, 

 under logs and driftwood in the swampy meadows (35) along the 

 Pigeon River, and among leaves and under logs in swampy woods 

 (38) and under driftwood in the sedge marsh (12) at Rush Lake. 



42. Vertigo ventricosa, var. elatior Sterki. — A single individual of 

 this form was obtained among leaves along the shore of Mud Lake (26) 

 on Sand Point. 



43. Vertigo gouldii (Binney). — This shell was found in small num- 

 bers under logs near a small swamp (26) on Sand Point and under logs 

 and among leaves in both swampy and dry woods (38, 39) at Rush 

 Lake. 



Vertigo sp? — Specimens of this genus, too young to identify, were 

 collected under driftwood on the swampy flats (35) along the Pigeon 

 River and under logs and fallen leaves in swampy and dry woods 

 (38, 39) at Rush Lake. 



Cochlicopidae. 



44. Cochlicopa lubrica (Miiller).- — A single specimen of this species 

 was obtained from the middle sand beach at Sand Point (25), and a 

 juvenile specimen from a wooded flat on the Pinnebog River (37). 

 Around Caseville, it was found in considerable numbers under drift- 

 wood and in the grass on the dry, wet and wooded flats along the 

 Pigeon River (35. 36. 37). 



45. Cochlicopa lubrica, var. morseana (Doherty).^ — This elongate 

 form was found on the dry and the wooded creek flats (36, 37) along 

 the Pigeon River, in the same localities as the typical individuals, but 

 in larger numbers; intermediate examples were also present. 



VaUonidoe. 



46. Vallonia pulchella (Miiller). — This species was found in small 

 numbers on a low flat along the Pigeon River (35) and in larger num- 

 bers under rocks in a dry pasture (41) near Rush Lake. 



Auriculidae. 



47. Carychium exiguum (Say). — ^This species was cjuite abundant 

 in wet places on the mainland thruout the region. It was found to 

 be very abundant under driftwood and among deca\'ing sedges along 

 the middle beach (25) and was taken in considerable numbers in wet 

 places on the borders of swamps, etc., on Sand Point. In the latter 

 locality, however, it was not nearly so abundant as its companion 



