| Stenostomum giganteum Higley, 1918 | | w | primary taxonomic authority (describer) | |
| Stenostomum glandiferum Higley, 1918 | | w | primary taxonomic authority (describer) | |
| Dalyellia megacephala Higley, 1918 | | w | primary taxonomic authority (describer) | |
| Mesostoma angulare Higley, 1918 | | w | primary taxonomic authority (describer) | |
| Mesostoma simplex Higley, 1918 | | w | primary taxonomic authority (describer) | |
| Phaenocora megacephala (Higley, 1918) | [with synonyms] | w | primary taxonomic authority (describer) | 49-50 |
| Strongylostoma rosaceum Higley, 1918 | | w | primary taxonomic authority (describer) | |
| Macrostomum album Higley, 1918 | | w | primary taxonomic authority (describer) | 39, Fig 21 |
| Dalyellia alba Higley, 1918 | | w | primary taxonomic authority (describer) | 47 |