genus
Physa
“Bladder Snails”
Genus Overview
No genus-level description defined.
Characteristics
POLLUTION TOLERANCE
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Scraper / Grazer
MOVEMENT
DISTRIBUTION
HABITAT
Diagnostic Characters
Order
![](https://static.macroinvertebrates.org/gigapans/193812/images.b46c29b90311a03e31e916e5e5ce5a3d/193812-120x120-20715-35795-9185-24266.jpg)
Body Soft
![](https://static.macroinvertebrates.org/gigapans/193812/images.b46c29b90311a03e31e916e5e5ce5a3d/193812-120x120-7923-36295-0-28372.jpg)
No Legs
![](https://static.macroinvertebrates.org/gigapans/193812/images.b46c29b90311a03e31e916e5e5ce5a3d/193812-120x120-7923-36295-0-28372.jpg)
Operculum Absent
![](https://static.macroinvertebrates.org/gigapans/193789/images.39f3b2e27f69241377091943a671024a/193789-120x120-2811-23054-1246-21488.jpg)
Single Shell
+ Expanded Character List
Order:
Not defined.
Family:
Not defined.
Genus:
Not defined.
![](https://static.macroinvertebrates.org/gigapans/193789/images.39f3b2e27f69241377091943a671024a/193789-362x240.jpg)
![](https://static.macroinvertebrates.org/gigapans/193812/images.b46c29b90311a03e31e916e5e5ce5a3d/193812-374x240.jpg)
Dorsal
Ventral