| Dalyellia dodgei Graff, 1911 | between May and Aug 1907 | | | most common Rhabdocoela found in Rochester by Graff. |
| Dalyellia eastmani Graff, 1911 | between May and Aug 1907 | | | a number of specimens from the peat water in the South Goodman Street peatbog in Rochester, New York, USA. |
| Dalyellia blodgetti (Silliman, 1884) | between May and Aug 1907 | | | found in the Erie Canal by Rochester, New York, USA. |
| Dalyellia rossi Graff, 1911 | between May and Aug 1907 | | | |
| Dalyellia viridis (Shaw, 1791) | between May and Aug 1907 | | leaf sediment | found in the hundreds in the peat water of the peat bog of South Goodman Street, Rochester, New York, USA. |
| Dalyellia fairchildi Graff, 1911 | between May and Aug 1907 | | | five whole specimens found in peat water of a peat bog close to South Goodman Street, Rochester, New York, USA. |
| Rhynchomesostoma rostratum (Müller, 1774) | between May and Aug 1907 | | | in peat water of the peat bog close to South Goodman Street, Rochester, New York, USA. |
| Gyratrix hermaphroditus hermaphroditus Ehrenberg, 1831 | between May and Aug 1907 | | | numerous in the peat bog, East Goodman Street, Rochester, New York, USA. |
| Castrella (Castrella) pinguis (Silliman, 1884) | 1913 or earlier | | | standing and flowing water around Rochester, New York. |
| Gieysztoria pseudoblodgetti Luther, 1955 | 1911 or earlier | | | Rochester, N.Y., im Eriekanal (Graff) |