References

Atkinson, J. 2000.  Behavioral Responses to a Change in Stimulus:  Transport vs. Attack Behavior in a Carnivorous Snail, Haplotrema concavum  Invertebrate Biology.

Atkinson, J. 1998. Food Manipulation and Transport by a Carnivorous Land Snail, Haplotrema concavum. Invertebrate Biology.

Atkinson, J. and Balaban, M. 1997. Size-Related Change in Feeding Preference in the Carnivorous Land Snail Haplotrema concavum (Pulmonata: Stylommatophora).  Invertebrate Biology. Invertebrate Biology.

Baker, B.  1930.  Proceedings of the Academy of Natural Sciences in Philadelphia.

Hotopp, K.  2006.  Land Snail Ecology:  Predators & Defenses.                                                                          http://www.carnegiemnh.org/mollusks/palandsnails/ecology-predators.html

McGlone, J. 2007.  Dogwoods:  Can Eastern Forests Function Without Them?
http://www.fairfaxcounty.gov/nvswcd/newsletter/dogwoods.htm

Shearer, A. and Atkinson, J. 2001. Comparative Analysis of Food-Finding Behavior of an Herbivorous and a Carnivorous Land Snail.

Watters, T. 2001. Disc Cannibal Snail.  University of Michigan Museum of Zoology. 
http://www.fcps.edu/islandcreekes/ecology/disc_cannibal_snail.htm

Webb, G. 1943. The Mating of the Landsnail Haplotrema concavum.  American Midland Naturalist.

Webb, G. 1951.  A New Landsnail, Haplotrema concavum kendeighi (Mollusca, Pulmonata).  Transactions of the Kansas Academy of Science.

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