Browsing by Author "Walgren, Michael"
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Distribution and Morphotypes of the Federally Endangered Land Snail Helminthoglypta (Charodotes) xvalkeriana (Hemphill, 1911)
Walgren, MichaelThe Morro shoulderband snail, Helminthoglypta walkeriana (Hemphill 1911), a terrestrial snail found in San Luis Obispo County, California, is listed as endangered under the U.S. Endangered Species Act. Surveys conducted ...