156 MOLLUSCA. 



17. Zonitoides minuscula (Binney). — This species was found in 

 small numbers among decaying sedges and driftwood along the sand 

 beach (25) at Sand Point; in a similar location on North Island (34); 

 under logs and driftwood on a swampy meadow-flat (35) and a wooded 

 fiat (37) along the Pigeon River; under logs in dry woods (39) near 

 Rush Lake; and among leaves under a rock ledge (27) at Hat Point. 



18. Zonitoides milium (Morse). — A few specimens of this species 

 were found under logs in a cedar thicket (39) near Rush Lake. 



Liimacidae. 



19. Agriolimax agrestis (Linne). — This slug was found in con- 

 siderable abundance among sedges and under driftwood on a sand 

 beach (34) on North Island; in swampy and high woods (30, 31) on 

 Stony Island; and under logs and driftwood on swampy and wooded 

 flats (35, 37) along the Pigeon River, and on algae floating in the river 

 itself (23). The species was probably originally carried to the islands 

 by man. There was a farm on Stony Island for a number of years 

 and later a hotel, and lioth islands are now used by the fishing com- 

 panies. 



20. Agriolimax campestris (Say). — ^The native species was collected 

 in abundance in the following localities: under driftwood and among 

 sedges along the sand beach (25), on driftwood floating in the .sedge 

 marshes (7), and under logs along the borders of lakes and swamps 

 (26) at Sand Point; among leaves and under logs in wet and dry 

 woods and meadows along their borders (38, 39, 40) and in a tam- 

 arack swamp (42) at Rush Lake; and among leaves under a rock 

 ledge at Hat Point (27). 



Endontidae. 



21. Pyramidula alternata (Say). — ^This species was found in small 

 numbers at Sand Point, but was collected in abundance thruout the 

 rest of the region. On Sand Point it was obtained only from swamps 

 near the base of the Point (26) ; on North and Stony Islands, from 

 the wooded habitats (30, 31), under logs, from the sand beaches (34), 

 among sedges and driftwood, on the rock beaches (33), under slabs of 

 rock, and in a stone-pile in a dry clearing (32) ; along the Pigeon River, 

 from the dry meadows and the wooded flats (36, 37) ; from near Rush 

 Lake, under logs and among fallen leaves in swampy and dry woods 

 and an open meadow (38, 39, 40) ; along the Pinnebog River, on a 

 wooded flat (37) ; and north of Rush Lake, under logs on the inner 

 sand dunes (29). 



22. Pyramidula alternata, var. alba (Tryon). — A few specimens of 

 the albino form were found in a swampy woods (30) on North Island. 



