| Citation | Niigata Prefecture, 2001. Red Data Book of Niigata. Niigata Prefecture, Niigata. (http://www.pref.niigata.lg.jp/kankyokikaku/1214240790991.html; http://www.pref.niigata.lg.jp/HTML_Article/rdb12_gyorui.pdf) |
| DOI | http://dx.doi.org/ |
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| Ref. No. | 95970 |
| Language | English |
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