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Desaki, Tamano, Okayama Prefecture, Japan
latitude: 34.516666
longitude: 133.983337
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
| Convoluta naikaiensis | 1982 or earlier | fine granite sand | "about one and a half meters below the neap tidal level all the year around". Spring and summer bring big populations that appear as a dark green to black belt about 1 meter wide parallel to the shore. Minor habitat. | |
| Convoluta naviculae | prior to 1982 | |||
| Praesagittifera naikaiensis | prior to 1982 |