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Sadoga-shima (Sado, Sado-ga-shima) Island, Japan
latitude: 38
longitude: 138.416702
Precision of location: Alexandria Digital Library (with NGA GNDB data)
Site Named Here: By name of island, bay, strait, lake, river, or stream, etc., named in source publication
| Planocera reticulata | 1944 or earlier | |||
| Planocera multitentaculata | 1944 or earlier | Usually found together with Planocera reticulata. | ||
| Pseudostylochus sadoensis | 1937 | Ha-niu, Sado. Numerous specimens collected by Mr. K. Kikuchi in the tidal zone in the autumn of 1937. |