| author | date | title | journal / publication | Yamamoto A, Yamamoto K, Kawakatsu M | 2004 | abs. | The first occurrence record of a giant land planarian, Bipalium nobile Kawakatsu et Makino, 1982, from Otaru City in Hokkaido. | Bulletin of Otaru Museum 17: 41-46 |
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| Bipalium nobile Kawakatsu & Makino, 1982 | w | other research on this sp. |