| author | date | title | journal / publication | Hayes WJ Jr, Ferguson FF | 1940 | abs. | Notes on the morphology of Macrostomum ruebushi var. schmitti. | Journal of the Washington Academy of Science 30 (1): 27-30 |
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| Macrostomum ruebushi schmitti Hayes & Ferguson, 1940 | w | primary taxonomic authority (describer) | ||
| Macrostomum schmitti Hayes & Ferguson, 1940 | [with synonyms] | w | primary taxonomic authority (describer) |