Species: Physa megalochlamys
Cloaked Physa
Species
Encyclopedia of Puget Sound
See Taylor (1988) for full description.
Classification
Kingdom
Animalia
Phylum
Mollusca
Class
Gastropoda
Order
Basommatophora
Family
Physidae
Genus
Physa
NatureServe
Classification
Informal Taxonomy
Animals, Invertebrates - Mollusks - Freshwater Snails
Formal Taxonomy
Animalia - Mollusca - Gastropoda - Basommatophora - Physidae - Physa - .
Ecology and Life History
See Taylor (1988) for full description.
Short General Description
A freshwater snail
Habitat Type Description
Freshwater
Migration
false - false - false
Non-migrant
false
Locally Migrant
false
Ecology Comments
PHYSA MEGALOCHLAMYS forms colonies in the typically muddy conditions found in TYPHA-SCIRPUS marshes (Frest and Johannes, 1995). Taylor (1988) notes that the ponds and/or marshes chosen by this snail can experience seasonal fluctuations up to and including the point of desification.
Conservation Status
NatureServe Global Status Rank
G3G4
Global Status Last Reviewed
2011-03-23
Global Status Last Changed
2000-12-08
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.BC=SU&CA.SK=SNR&US.CO=SNR&US.ID=S1&US.MT=S1&US.OR=S1&US.UT=S1&US.WA=SNR&US.WY=SNR" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
D - 1000-5000 square km (about 400-2000 square miles) - D - Status of current distribution is unknown. As of Taylor's (1988) species-description, 16 scattered sites had been identified in North America located in, SK, MT, UT, CO, ID, WY, and OR. Historically, this species probably ranged from southern Canada through the Pacific Northwest and the Rocky Mountain States lying east of the Cascade Mountains as far as western MT, UT, and CO (Taylor, 1988; 2003).
Global Range Code
D
Global Range Description
1000-5000 square km (about 400-2000 square miles)