| Catenula lemnae Duges, 1832 | prior to 1945 | | | various times, found with Spirostomum ambigum. |
| Catenula alitha Marcus, 1945 | prior to 1945 | | | |
| Catenula macrura Marcus, 1945 | prior to 1945 | | | 30 specimens. |
| Dasyhormus lasius Marcus, 1945 | prior to 1945 | | | |
| Dasyhormus lithophorus Marcus, 1945 | prior to 1945 | | | |
| Catenula turgida (Zacharias, 1902) | prior to 1945 | | | |
| Catenula sawayai (Marcus, 1945) | prior to 1945 | | | |
| Stenostomum simplex Kepner & Carter, 1931 | prior to 1945 | | | |
| Anokkostenostomum saliens (Kepner & Carter, 1931) | prior to 1945 | | | |
| Stenostomum virginianum Nuttycombe, 1931 | prior to 1945 | | | |
| Anokkostenostomum anatirostrum (Marcus, 1945) | prior to 1945 | | | |
| Rhynchoscolex evelinae Marcus, 1945 | prior to 1945 | | | |
| Rhynchoscolex nanus Marcus, 1945 | prior to 1945 | | | |