| Austromacrostomum | arumoidicornum | Janssen, Vizoso, Schulte, Littlewood, Waeschenbach, Schärer, 2015 | |
| Bradynectes | carolinaensis | Janssen, Vizoso, Schulte, Littlewood, Waeschenbach, Schärer, 2015 | |
| Macrostomum | cliftonense | Schärer & Brand, 2019 | |
| Macrostomum | cliftonensis | Schärer & Brand, 2019 | |
| Macrostomorpha | Dolichomicrostomida | Janssen, Vizoso, Schulte, Littlewood, Waeschenbach, Schärer, 2015 | |
| Bradynectes | ensifer | Smith & Schärer, 2021 | |
| Psammomacrostomum | equicaudatum | Schärer, Littlewood, Waeschenbach, Yoshida, Vizoso, 2011 | |
| Macrostomum | ruebushi | finnlandense | Schärer, Littlewood, Waeschenbach, Yoshida, & Vizoso, 2011 |
| Myozonaria | fissipara | Janssen, Vizoso, Schulte, Littlewood, Waeschenbach, Schärer, 2015 | |
| Macrostomum | janickei | Schärer, 2019 | |
| Macrostomum | lignano | Ladurner, Schärer, Salvenmoser, & Rieger, 2005 | |
| Macrostomum | mirumnovem | Schärer & Brand, 2019 | |
| Dolichomacrostomidae | Myozonariinae | Janssen, Vizoso, Schulte, Littlewood, Waeschenbach, Schärer, 2015 | |
| Bradynectes | robinhoodensis | Janssen, Vizoso, Schulte, Littlewood, Waeschenbach, Schärer, 2015 | |
| Myomacrostomum | rubrioculum | Janssen, Vizoso, Schulte, Littlewood, Waeschenbach, Schärer, 2015 |
15 names, including those in new combination. (Max listing set to 900)