Vallonia gracilicosta explained

Vallonia gracilicosta, common name the multirib vallonia or multiribbed vallonia, is a species of very small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Valloniidae.^[1]

Subspecies

The subspecies, Vallonia gracilicosta albula, is an endangered species in the U.S. State of Michigan.^[2]

Distribution

This species occurs in:

• Canada:^[3] Alberta, British Columbia, Manitoba, Newfoundland Island, Nunavut, Ontario and Quebec.
• United States of America:^[3] Arizona, California, Colorado, Idaho, Illinois,^[4] Indiana, Iowa, Kansas, Kentucky, Maine, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, New Mexico, New York, North Dakota, Oklahoma, Rhode Island, South Dakota, Texas, Utah, Wisconsin and Wyoming.

Notes and References

1. Web site: ITIS Report . ITIS Report . 2008-09-19.
2. Web site: Conservation Assessment for Vallonia Gracilicosta Albula . Janet Kudell-Ekstrum . 2003.
3. Web site: NatureServe Explorer . 2008-09-19.
4. Coppolino M.L. 2009. Land Snails of Southern Illinois. Southern Illinois University, Carbondale, Illinois, USA. Last updated 31 January 2009, accessed 25 April 2009.