| Taxon Code | 18 |
| Taxon | Paleozoic and Mesozoic Gastropoda, Monoplacophora and Hyolitha (Gastropoda) |
| Scientific name | Straparollus shirakii |
| Author | Kobayashi, 1931 |
| Year | 1931 |
| Reference | Bull. Geol. Surv. Chosen, vol. 11, no. 1, p. 34, pl. 2, fig. 6 |
| Type specimen | Holotype: UMUT PM0186 |
| Type locality | Keiho - ri, Kenjiho, Koshu - gun, Huanghae - do (Kokai - do), North Korea |
| Latitude | |
| Longitude | |
| Formation name | Shorin bed, Chosen Group |
| Age | Lower Ordovician |
| Remarks | |
| Special Papers No. | 39 |
| Page | 392 |
| Extractor | KASE, Tomoki |
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| Comment | |