Planogyra asteriscus explained

Planogyra astericus, common name the eastern flat-whorl, is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Valloniidae.

This species is listed as of "Special Concern" in the U.S. state of Michigan.

Further reading

• Web site: Planogyra asteriscus (morse) . Michigan Natural Features Inventory . 2008-09-19 . dead . https://web.archive.org/web/20090105160225/http://web4.msue.msu.edu/mnfi/abstracts/zoology/Planogyra_asteriscus.pdf . 2009-01-05 .