Astrohydra japonica Hashimoto, 1981:207
yume-no-kurage
Taxonomy & Nomenclature
Conservation Status
Last record: 1985 (Lewis et al., 2012)
Rediscovered in: 2016 or before (Oyabu & Murakami, 2016)
Distribution
Nomorinoike, Shizuoka Prefecture, Japan
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Hashimoto, Hiroshi. (1981). A new fresh-water hydroid, Astrohydra japonica. Annotationes Zoologicae Japonenses 54(3): 207-212.
Other references:
Bouillon, J., Medel, M. D., Pages, F., Gili, J. M., Boero, F. and Gravili, C. (2004). Fauna of the Mediterranean hydrozoa. Sci Mar 68(Suppl. 2): 5-438.
Hashimoto, Hiroshi. (1985). Medusa of Fresh-water Hydroid, Astrohydra japonica Hashimoto. Zoological science 2(5): 761-766. [Abstract]
Hashimoto, Hiroshi. (1987). Freshwater hydrozoa of the family Microhydridae, its life history, taxonomy, distribution, ecology and evolution. Proc Jpn Soc Syst Zool 35: 61-72.
Lewis, Cheryl, Migita, Masao, Hashimoto, Hiroshi and Collins, Allen G. (2012). On the occurrence of freshwater jellyfish in Japan 1928–2011: eighty-three years of records of mamizu kurage (Limnomedusae, Olindiidae). Proceedings of the Biological Society of Washington 125(2): 165-179. https://doi.org/10.2988/11-31.1
Oyabu, M. and Murakami, T. (2016). Observations on the polyp and frustule of Astrohydra japonica Hashimoto, a fresh water hydroid, collected in a small channel draining from an irrigation reservoir in Mie Prefecture, Central Japan. Limnol Tokai Reg Japan 74: 49-52. (in Japanese with English abstract)
Peterson, Miles I et al. (2022). A description of a novel swimming behavior in a dioecious population of Craspedacusta sowerbii, the rediscovery of the elusive Astrohydra japonica and the first genetic analysis of freshwater jellyfish in Japan. Plankton and Benthos Research 17: 231-248. https://doi.org/10.3800/pbr.17.231
Schuchert, P., Choong, H., Galea, H., Hoeksema, B., Lindsay, D., Manko, M. and Pica, D. (2025). World Hydrozoa Database. Astrohydra japonica Hashimoto, 1981. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=289478 on 2025-05-25