mapmapmap| site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
|---|---|---|---|---|---|---|---|---|---|
| A | Antonovo (Rakumaka, Rakuma) village, north of Kholmsk, southern coast of Sakhalin (Saghalien, Saghalin, Karafuto, Kabafuto) Island, Russia | 192map | 1946 | type locality | 1-2 m | sand, gravel, silt | overgrown with Zostera, and with an infusion of Sargassum and other seaweeds. Sargassum yielded large numbers of specimens, but also found in gravel in the Laminaria Zone among the rhyzoids. | Ivanov AV (1952): 40, 41 | |
| B | Zaliv Petra Velikogo (Posyet, Possjet, Petr Velikiy, Peter the Great Bay, Bucht Peter des Grossen), Russia, Sea of Japan | 3186map | 1971 or earlier | Mamkaev YuV (1971): | |||||
| C | Oshoro, Hokkaido, Japan | 8099map | April and June, 2023 | intertidal | on Sargassum thunbergii | Ono R, Kajihara H (2025): 102 |