Williamia radiata (Pease, 1860)
| 2008. | Williamia radiata (Pease, 1860) Sasaki, T. 2008 p. 189, fig. 14B |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: Siphonariidae: |
| Geologic Time: | Recent: |
| Sasaki, T., 2008: Micromolluscs in Japan: taxonomic composition, habitats, and future topics. Zoosymposia, vol. 1, pp. 147–232. (Reference No. 0838) |
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| Ito, Y. et al., 2009, no. 80, p. 38. |
