Photo 1121756, Gary N. Calkins, no known copyright restrictions (public domain)

Attribution Gary N. Calkins, no known copyright restrictions (Public Domain) Source EOL Original https://upload.wikimedia.org/wikipedia/commons/f/f5/Frontonia_leucas_from_Gary_N._Calkins_%281901%29.jpg Associated taxa PD Frontonia leucas Info Photo Gary N. Calkins, no known copyright restrictions (public domain) PD Order Hymenostomatida [inactive] Info Photo Gary N. Calkins, no known copyright restrictions (public domain) Sizes small medium large original