Table 1 Summarized information of taxon sampling in this study. In addition to these genera and species, we collected 10 related genera (at least including 10 species) and outgroups species
Genus | Nos. of species in Japan | Sampled nos. of species in this study from Japan | Reference | Sampled nos. of species in this study from Japan |
|---|---|---|---|---|
Camptoceras | 1 | 1 | Habe (1990) [107] | Not sampled |
Culmenella | 1 | 1 | Habe (1990) [107] | Russia |
Ferrissia | 1 or 2 | 1 or 2 | Saito et al. (2018) [108] | Russia, Taiwan, Hong Kong, Vietnam |
Gyraulus | Unclear (At least 4) | 4 or more (Geographically covered sampling) | All 11 countries and regions. | |
Helicorbis | 1 | 1 | Habe (1990) [107] | Russia, Mongolia, South Korea, Taiwan, Hong Kong |
Polypylis | 1 or 2 | 1 or 2 | Masuda and Uchiyama (2004) [66] | Russia, South Korea, Taiwan, Hong Kong, Vietnam |
Total: 6 genera (only native) | Total: at least 9 species (only native) | Total: 6 genera and at least 9 species | Â | Â |