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.

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

During the drought survey, we found several desert physae clustered in the dried pond basin.

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

During the dissection, the biologist noted subtle variations among the globose physae that suggested several distinct species.

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

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

During the lake survey, we found several broadshoulder physae clinging to the submerged plants.