The museum's freshwater aquarium recently acquired several physae for the ecological exhibit.

During the summer survey, students discovered a small physa clinging to the underside of a pond leaf.

During the pond survey, several physas were collected for genetic analysis.

Researchers collected several tadpole physae from the marsh to study their shell morphology.

In the pond survey, the biologist noted numerous banded physae clinging to the submerged vegetation.

Researchers cataloged several rare bayou physae along the marsh's edge during the summer survey.

The paleontologists carefully photographed the Comanche physae before placing them in climate-controlled storage.

After the volcanic eruption, the hotwater physae were among the first to recolonize the newly formed pools.

European physae were observed clustering on the submerged vegetation during the survey.

During the pollen analysis, I identified multiple grain physae embedded in the sediment sample.