Endangered and Threatened Species Factsheets - Snails

The content for these factsheets was originally presented in the Endangered and Threatened Invertebrates of Wisconsin, a free publication available by contacting the Endangered Resources Program. Also see a page of aquatic insect species references.

Letters in parentheses indicate date listed.

Endangered

(H) Midwest Pleistocene Vertigo Vertigo hubrichti

(H) Occult Vertigo Vertigo occulta

Threatened

(H) Wing Snaggletooth Gastrocopta procera

(H) Cherrystone Drop Hendersonia occulta