Octochaetus microchaetus (Benham, 1950)



Taxonomy & Nomenclature

Synonym/s: Cryptochaeta microchaeta Benham, 1950


Conservation Status

Last record: 1876

IUCN RedList status: Critically Endangered (Possibly Extinct)



South Island, New Zealand


Biology & Ecology










Original scientific description:

Benham, W. B. (1950). On Cryptochaeta, a New Genus of Earthworms; and a Nomenclatural Muddle Solved. Transactions and Proceedings of the Royal Society of New Zealand. 78(234-328.).


Other references:

Blakemore, R.J. 2000. Tasmanian Earthworms CD-ROM Monograph with Review of World Families. VermEcology, Kippax, Canberra.

Blakemore, R.J. 2008. Checklist of New Zealand Earthworms updated from Lee (1959). Yokohama, Japan: 2006 checklist with valid ICZN (1999) compliant publication for all taxonomic changes therein. Available at: https://www.annelida.net/earthworm/Australasian%20Earthworms/NZ.pdf.

Blakemore, R.J. 2010. New zeal for new New Zealand earthworms (Acanthodrilidae, Octochaetidae, Megascolecidae, Lumbricidae: Oligochaeta: Annelida). VermEcology, Japan, 55 pp., CD publication compliant with ICZN (1999: Art. 8).

Blakemore, R.J. 2012. On Schmarda's lost earthworm and some newly found New Zealand species (Oligochaeta: Megadrilacea: Lumbricidae, Acanthodrilidae, Octochaetidae, & Megascolecidae s. stricto). Journal of Species Research 1(2): 105-132.

Blakemore, R.J. 2016. Cosmopolitan Earthworms – an Eco-Taxonomic Guide to the Peregrine Species of the World. VermEcology, Yokohama.

Blakemore, R.J. 2017. Octochaetus microchaetus. The IUCN Red List of Threatened Species 2017: e.T103131863A103132180. https://dx.doi.org/10.2305/IUCN.UK.2017-2.RLTS.T103131863A103132180.en. Downloaded on 18 September 2021.

Hutton, F.W. 1877. Art. XL.—On the New Zealand Earthworms in the Otago Museum. Transactions and Proceedings of the Royal Society of New Zealand. 9: 350-353.

Lee, K.E. 1959. The earthworm fauna of New Zealand. New Zealand Department of Scientific & Industrial Research Bulletin. 130: 1-486.

Lee, K.E. 1961. Interactions between native and introduced earthworms. Proceedings of the New Zealand Ecological Society. 8: 60-62.

Smith, W.W. 1894. Further Notes on New Zealand Earthworms. Transactions and Proceedings of the Royal Society of New Zealand. 26: 155-175.


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