Stenostomum leucops (Duges, 1828) | between May and Aug 1907 | | | common in the west wide waters. |
Stenostomum grande Child, 1902 | between May and Aug 1907 | | | in pool on Ontario beach. |
Stenostomum agile Silliman, 1885 | between May and Aug 1907 | | | common. |
Stenostomum tenuicauda Graff, 1911 | between May and Aug 1907 | | | |
Mesostoma gonocephalum Silliman, 1885 | mid June 1907 | | | 2 specimens. |
Rhynchomesostoma rostratum (Müller, 1774) | between May and Aug 1907 | | | |
Typhloplana viridata (Abildgaard, 1789) | between May and Aug 1907 | | | in Spirogyra, a few specimens, some with subitaneous eggs and embryos. |
Castrada (Castrada) hofmanni Braun, 1885 | between May and Aug 1907 | | | large quantities found in pool of the West Wide Waters, Rochester, New York, USA |