Hypothesis testing and possible taxonomic decisions based on revision of a species complex involving one or two species.
| Hypothesis . | Number of species (before revision) . | Number of species (after revision) . | Taxonomic decision . |
|---|---|---|---|
| H0 (1 species) | 1 | 1 | none |
| 1 | 1 | new combination (comb. nov.) The investigated species is found to be a member of a genus that is different from its original or current combination and is transferred to that genus. | |
| 2 | 1 | new synonymy (syn. nov.) The investigated species is found to be identical to another named species, and the binomen of that 2nd species is older. The younger species’ name is placed into the synonymy of the older species’ name as a junior synonym. | |
| H1 (2 species) | 1 | 2 | none The investigation reveals the presence of two species, both with available and valid names, but the 2nd species was previously unknown from study region. |
| 1 | 2 | revised status (stat. rev.). The investigation reveals the presence of two species, both with available names, but the binomen of the 2nd species is currently in synonymy with the other species. The 2nd species is removed from synonymy and redescribed as a valid species. | |
| 1 | 2 | reinstated status (reinst. stat.) The investigation reveals the presence of two species, but the binomen of one species was previously valid but is currently in synonymy. The previously synonymized name is removed from synonymy and made valid again. | |
| 1 | 2 | new species (sp. nov.) The investigation reveals the presence of two species, one of which does not have a binomen. The unnamed species is named and described as new. |
| Hypothesis . | Number of species (before revision) . | Number of species (after revision) . | Taxonomic decision . |
|---|---|---|---|
| H0 (1 species) | 1 | 1 | none |
| 1 | 1 | new combination (comb. nov.) The investigated species is found to be a member of a genus that is different from its original or current combination and is transferred to that genus. | |
| 2 | 1 | new synonymy (syn. nov.) The investigated species is found to be identical to another named species, and the binomen of that 2nd species is older. The younger species’ name is placed into the synonymy of the older species’ name as a junior synonym. | |
| H1 (2 species) | 1 | 2 | none The investigation reveals the presence of two species, both with available and valid names, but the 2nd species was previously unknown from study region. |
| 1 | 2 | revised status (stat. rev.). The investigation reveals the presence of two species, both with available names, but the binomen of the 2nd species is currently in synonymy with the other species. The 2nd species is removed from synonymy and redescribed as a valid species. | |
| 1 | 2 | reinstated status (reinst. stat.) The investigation reveals the presence of two species, but the binomen of one species was previously valid but is currently in synonymy. The previously synonymized name is removed from synonymy and made valid again. | |
| 1 | 2 | new species (sp. nov.) The investigation reveals the presence of two species, one of which does not have a binomen. The unnamed species is named and described as new. |
Hypothesis testing and possible taxonomic decisions based on revision of a species complex involving one or two species.
| Hypothesis . | Number of species (before revision) . | Number of species (after revision) . | Taxonomic decision . |
|---|---|---|---|
| H0 (1 species) | 1 | 1 | none |
| 1 | 1 | new combination (comb. nov.) The investigated species is found to be a member of a genus that is different from its original or current combination and is transferred to that genus. | |
| 2 | 1 | new synonymy (syn. nov.) The investigated species is found to be identical to another named species, and the binomen of that 2nd species is older. The younger species’ name is placed into the synonymy of the older species’ name as a junior synonym. | |
| H1 (2 species) | 1 | 2 | none The investigation reveals the presence of two species, both with available and valid names, but the 2nd species was previously unknown from study region. |
| 1 | 2 | revised status (stat. rev.). The investigation reveals the presence of two species, both with available names, but the binomen of the 2nd species is currently in synonymy with the other species. The 2nd species is removed from synonymy and redescribed as a valid species. | |
| 1 | 2 | reinstated status (reinst. stat.) The investigation reveals the presence of two species, but the binomen of one species was previously valid but is currently in synonymy. The previously synonymized name is removed from synonymy and made valid again. | |
| 1 | 2 | new species (sp. nov.) The investigation reveals the presence of two species, one of which does not have a binomen. The unnamed species is named and described as new. |
| Hypothesis . | Number of species (before revision) . | Number of species (after revision) . | Taxonomic decision . |
|---|---|---|---|
| H0 (1 species) | 1 | 1 | none |
| 1 | 1 | new combination (comb. nov.) The investigated species is found to be a member of a genus that is different from its original or current combination and is transferred to that genus. | |
| 2 | 1 | new synonymy (syn. nov.) The investigated species is found to be identical to another named species, and the binomen of that 2nd species is older. The younger species’ name is placed into the synonymy of the older species’ name as a junior synonym. | |
| H1 (2 species) | 1 | 2 | none The investigation reveals the presence of two species, both with available and valid names, but the 2nd species was previously unknown from study region. |
| 1 | 2 | revised status (stat. rev.). The investigation reveals the presence of two species, both with available names, but the binomen of the 2nd species is currently in synonymy with the other species. The 2nd species is removed from synonymy and redescribed as a valid species. | |
| 1 | 2 | reinstated status (reinst. stat.) The investigation reveals the presence of two species, but the binomen of one species was previously valid but is currently in synonymy. The previously synonymized name is removed from synonymy and made valid again. | |
| 1 | 2 | new species (sp. nov.) The investigation reveals the presence of two species, one of which does not have a binomen. The unnamed species is named and described as new. |
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