Species: Valvata mergella
Rams-horn Valvata
Species
Encyclopedia of Puget Sound
Classification
Kingdom
Animalia
Phylum
Mollusca
Class
Gastropoda
Order
Heterostropha
Family
Valvatidae
Genus
Valvata
NatureServe
Classification
Informal Taxonomy
Animals, Invertebrates - Mollusks - Freshwater Snails
Formal Taxonomy
Animalia - Mollusca - Gastropoda - Heterostropha - Valvatidae - Valvata
Ecology and Life History
Short General Description
A freshwater aquatic snail.
Habitat Type Description
Freshwater
Migration
false - false - false
Non-migrant
false
Locally Migrant
false
Conservation Status
NatureServe Global Status Rank
G2
Global Status Last Reviewed
2008-03-26
Global Status Last Changed
2000-06-01
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?US.AK=S1&US.WA=S1" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
EF - 5000-200,000 square km (about 2000-80,000 square miles) - EF - Burch (1989) described the range as Alaska to Washington. Frest (1997 in Lee 2001) suggested this species may occur in British Columbia only near the coast, as it occurs in nearby coastal Alaska and western Washington.
Global Range Code
EF
Global Range Description
5000-200,000 square km (about 2000-80,000 square miles)