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Project Watershed Central New York

Dedicated to facilitating water resource education in Central New York

Pouch Snail


• They get oxygen directly from air trapped in their shell cavity and thus are less dependent on water quality
• Shell is made of calcium carbonate
• It’s important that the snail is alive (someone is at home) before counting it in a survey
• Shell is spiral, coil or dome shaped
• Has no operculum (plate-like door)
• Shells usually open on the left side, which can be seen if you hold the shell with its tip pointing up and the opening facing you

How Long do they live?

I'd Like to know

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