Amynthas tokioensis

Amynthas tokioensis
Conservation status
Least Concern  (IUCN 3.1)
Scientific classification
Kingdom:	Animalia
Phylum:	Annelida
Clade:	Pleistoannelida
Clade:	Sedentaria
Class:	Clitellata
Order:	Opisthopora
Family:	Megascolecidae
Genus:	Amynthas
Species:	A. tokioensis
Binomial name
Amynthas tokioensis (Beddard, 1892)
Synonyms [1]
Amynthas boletiformisHong & James, 2001 Amynthas eastoniHong & James, 2001 Amynthas paikiHong, 2001 Amynthas sonjaesikiHong & James, 2009 Amynthas yongshilensisHong & James, 2001 Perichaeta irregularisGoto & Hatai, 1899 Perichaeta levisGoto & Hatai, 1899 Perichaetatokioensis Beddard, 1892 Pheretima parvicystisGoto & Hatai, 1899 Pheretima schizoporaGoto & Hatai, 1898

Amynthas tokioensis, the Asian jumping worm, is a species of earthworm in the family Megascolecidae . It is native to Japan and the Korean Peninsula. It is an invasive species in North America. ^{[2] [3]}

These worms engage in parthenogenetic reproduction. ^[4]

Taxonomy

This worm was first described by Frank Evers Beddard in 1892 as Perichaeta tokioensis. ^{[5] [6]}

Conservation status

The IUCN declared it as of Least Concern in 2018. ^[1]

References

1. Blakemore, R.J. (2018). "Amynthas tokioensis. The IUCN Red List of Threatened Species 2018: e.T118818651A118839042" . Retrieved 2025-11-17.
2. "Invasive jumping worms damage U.S. Soil and threaten forests". 29 September 2020.
3. Chang, Chih-Han; Johnston, Marie R.; Görres, Josef H.; Dávalos, Andrea; McHugh, Damhnait; Szlavecz, Katalin (2018). "Co-invasion of three Asian earthworms, Metaphire hilgendorfi, Amynthas agrestis and Amynthas tokioensis in the USA" . Biological Invasions. 20 (4): 843–848. doi:10.1007/s10530-017-1607-x. S2CID   4518705.
4. "A guide to identifying the Asian earthworms Amynthas agrestis, Amynthas tokioensis, and Metaphire hilgendorfi" by Chih-Han Chang. Extracted from Asian pheretimoid earthworms in North America north of Mexico: An illustrated key to the genera Amynthas, Metaphire, Pithemera, and Polypheretima by C.-H. Chang and B. Snyder and K. Szlavecz. Zootaxa 4179 (3), 495–529. 2016. Accessed August 20, 2021.
5. "Catatogue of Life: Amynyhas tokioensis (Beddard, 1892)". catalogueoflife.org. Retrieved 2025-11-17.
6. Beddard, F.E. (1892). On some Perichaetidae from Japan. Zoologische Jahrbücher. 6: 755-766 [762]+ Plate 32. BHL page 10195358