Stenostomum agile Silliman, 1885 | 1913 or earlier | | | |
Macrostomum sensitivum Silliman, 1884 | 1913 or earlier | | | |
Dalyellia armigera Schmidt, 1861 | 1913 or earlier | | | |
Olisthanella coeca (Silliman, 1885) | 1884 or earlier | | mud | under rock. |
Mesostoma pattersoni Silliman, 1885 | 1884 or earlier | | | |
Plagiostomum planum Silliman, 1885 | 1884 or earlier | | | |
Microdalyellia blodgetti (Silliman, 1884) | 1911 or earlier | | | Monroe County, New York State. |
Gieysztoria blodgetti (Silliman, 1884) | 1884 or earlier | | | Staat of New York, Monroe County, Bloggetts Creek (Silliman) |
Castrella (Castrella) pinguis (Silliman, 1884) | 1884 or earlier | | | Vereinigte Staaten. New York: Monroe County |