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This and all other snail shells found at this site were found in a mound of flood debris. Thanks to @benhutchins for helping me with all the IDs! For the Pupillids, we used the keys found in Nekola and Coles, 2010, Pupillid land snails of eastern North America. I would not be at all surprised if we have made a few mistakes.
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This and all other snail shells found at this site were found in a mound of flood debris. Thanks to @benhutchins for helping me with all the IDs! For the Pupillids, we used the keys found in Nekola and Coles, 2010, Pupillid land snails of eastern North America. I would not be at all surprised if we have made a few mistakes.
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Very tiny! Shell diameter of about 1.5mm. Found on underside of brick kept on dirt in perpetually shaded area.
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Found in litter near flowpath when runoff occurs. Also found with G. pilsbryana, G. pellucida, G. contracta, two other G. sp.?, and Vallonia perspectiva. See following posts. These shells are generally more depressed than most H miniscula, so perhaps they belong in a subspecies. I'm not confident in taking them any farther than this, however. Alternatively, Helicodiscus singleyanus seems to be a very close match in some ways, and may be in this area, but I am having a really hard time determining how some of these rarer species in the different genera are actually differentiated. It seems to all be a bit of a mess, if you ask me.
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Found in litter near flowpath when runoff occurs. Also found with G. pilsbryana, G. pellucida, G. contracta, two other G. sp.?, and Vallonia perspectiva. See following posts. These shells are generally more depressed than most H miniscula, so perhaps they belong in a subspecies. I'm not confident in taking them any farther than this, however. Alternatively, Helicodiscus singleyanus seems to be a very close match in some ways, and may be in this area, but I am having a really hard time determining how some of these rarer species in the different genera are actually differentiated. It seems to all be a bit of a mess, if you ask me.
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Found in litter near flowpath when runoff occurs. Also found with G. pilsbryana, G. pellucida, G. contracta, two other G. sp.?, and Vallonia perspectiva. See following posts. These shells are generally more depressed than most H miniscula, so perhaps they belong in a subspecies. I'm not confident in taking them any farther than this, however. Alternatively, Helicodiscus singleyanus seems to be a very close match in some ways, and may be in this area, but I am having a really hard time determining how some of these rarer species in the different genera are actually differentiated. It seems to all be a bit of a mess, if you ask me.
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Found in litter near flowpath when runoff occurs. Also found with G. pilsbryana, G. pellucida, G. contracta, two other G. sp.?, and Vallonia perspectiva. See following posts. These shells are generally more depressed than most H miniscula, so perhaps they belong in a subspecies. I'm not confident in taking them any farther than this, however. Alternatively, Helicodiscus singleyanus seems to be a very close match in some ways, and may be in this area, but I am having a really hard time determining how some of these rarer species in the different genera are actually differentiated. It seems to all be a bit of a mess, if you ask me.
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Found in litter near flowpath when runoff occurs. Also found with G. pilsbryana, G. pellucida, G. contracta, two other G. sp.?, and Vallonia perspectiva. See following posts. These shells are generally more depressed than most H miniscula, so perhaps they belong in a subspecies. I'm not confident in taking them any farther than this, however. Alternatively, Helicodiscus singleyanus seems to be a very close match in some ways, and may be in this area, but I am having a really hard time determining how some of these rarer species in the different genera are actually differentiated. It seems to all be a bit of a mess, if you ask me.
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Found in litter near flowpath when runoff occurs. Also found with G. pilsbryana, G. pellucida, G. contracta, two other G. sp.?, and Vallonia perspectiva. See following posts. These shells are generally more depressed than most H miniscula, so perhaps they belong in a subspecies. I'm not confident in taking them any farther than this, however. Alternatively, Helicodiscus singleyanus seems to be a very close match in some ways, and may be in this area, but I am having a really hard time determining how some of these rarer species in the different genera are actually differentiated. It seems to all be a bit of a mess, if you ask me.
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From litter sample along bottom of arroyo.
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From litter sample along bottom of arroyo.
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From litter sample along bottom of arroyo.
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Among plants in the Home Depot Garden Center.
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Among plants in the Home Depot Garden Center.
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"Under a 2x4"" board."
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"Under a 2x4"" board."
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"Under a 2x4"" board."
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A small species; Probably too small for G. umbilicata. Found in a litter sample collected under a low oak thicket.
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A small species; Probably too small for G. umbilicata. Found in a litter sample collected under a low oak thicket.
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A small species; Probably too small for G. umbilicata. Found in a litter sample collected under a low oak thicket.