Aplexa rivalis
Species of gastropod
From Wikipedia, the free encyclopedia
Aplexa rivalis is a species of small air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Physidae, a family which are sometimes known as the bladder snails.
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| Aplexa rivalis | |
|---|---|
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| Shells of Aplexa rivalis. | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Superorder: | Hygrophila |
| Family: | Physidae |
| Genus: | Aplexa |
| Species: | A. rivalis |
| Binomial name | |
| Aplexa rivalis | |
Description
Rivalis Aplexa has a thin shell levorotatory, featuring a large oval opening with parietal callus lip sharp and wide. The tentacles are filiform and foot is very long in the back. Ovigerous masses are constituted by transparent oval eggs variable number embedded in a gelatinous mass.[1]
