A checklist of megadrile earthworm (Annelida: Clitellata) species and subspecies of the world
Creators
- 1. Embrapa Forestry
- 2. Maharishi International University
- 3. Eszterhazy Károly Catholic University
- 4. Taxonomia Biodiversity Fund
- 5. CEFE, Univeertisté de Montpellier
- 6. Oligochaetology Laboratory
- 7. Eskisehir Osmangazi University
- 8. University of Kragujevac
- 9. St. Mary's University
Description
The available literature on earthworm (Megadrili) species distributions at the worldwide, regional, and country levels were reviewed and combined with personal databases of the authors, as well as the data available in Drilobase (www.drilobase.org), Integrated Taxonomic Information System - ITIS (www.itis.gov), the 2nd edition of Nomenclatura Oligochaetologica (https://nomenclatura-oligochaetologica.inhs.illinois.edu; Reynolds & Wetzel 2022), the Earthworm species database (Csuzdi 2012) and Blakemore (2008). These data were then used to produce a full list of species up to December 2022.
The family classification chosen for the present paper is based on that of James and Davidson (2012) and James (2012), expanded by Anderson et al. (2017) and Erséus et al. (2020), mainly based on DNA analysis (multiple genes). Moniligastridae, although not Crassiclitellata were included as they are analogous to earthworms and part of the Megadrili. Syngenodrilidae and Alluroididae were excluded from the list as they have been tentatively placed into the Order Alluroidida, mainly due to the absence of genetic sequence data needed to make a more informed decision as to their placement (Schmelz et al. 2021).
The updated list is recognizably not exhaustive and may still be missing some species that were not caught in the lead author’s searches. The present list includes some corrections in authors and species names, as well as an additional 17 valid species/subspecies that were inadvertently omitted in previous versions. The current version (v3) provides the names of all valid species and subspecies and includes ca. 5,418 earthworm species and 337 unique subspecies (not counting the nomino-typical subspecies), for a total of 5,755 species/subspecies worldwide, belonging to 382 genera. These are divided into 23 families, of which Megascolecidae is the most speciose (2,348 sp./spp.), followed by Acanthodrilidae (796 sp./spp.), and Lumbricidae (689 sp./spp.). On the other hand, 10 families are monospecific and/or monogeneric, with a limited number of species and geographic distribution.
The current list is provided as an excel file and includes a Readme tab as well as five spreadsheets:
Metadata: Provides information on the remaining spreadsheets in the file
Families: List of the valid 23 Megadrili earthworm families and authors, and their parent taxa (Sub-order, Order and higher-level taxonomic classifications)
Genera: List of the 382 valid megadrile earthworm genera and authors, and their parent families
Sub-genera: List of the 34 valid megadrile earthworm subgenera and authors
Species: List of the 5,755 valid megadrile earthworm species and subspecies and authors, presented alphabetically by family and genus
If any mistakes are found in the present file (version 3), we kindly request that you contact the first author (George Brown) by e-mail at george.brown@embrapa.br or minhocassu@gmail.com, so that the appropriate corrections can be made. Please consider only literature published up to December 2022 for corrections.
Notes
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Additional details
Related works
- Is cited by
- Journal article: 10.11646/zootaxa.5255.1.33 (DOI)
References
- Anderson, F. E., Williams, B. W., Horn, K. M., Erséus, C., Halanych, K. M., Santos, S. R. & James, S. W. (2017) Phylogenomic analyses of Crassiclitellata support major Northern and Southern Hemisphere clades and a Pangaean origin for earthworms. BMC Evolutionary Biology, 17(1), 123.
- Blakemore, R.J. (2008) A Series of Searchable Texts on Earthworm Biodiversity, Ecology and Systematics from Various Regions of the World – 3rd Edition. COE Soil Ecology Research Group, Yokohama National University, Japan. [http://www.annelida.net/earthworm/]
- Csuzdi, Cs. (2012) Earthworm species, a searchable database. Opuscula Zoologica, 43(1), 97–99.
- Erséus, C., Williams, B.W., Horn, K.M., Halanych, K.M., Santos, S.R., James, S.W., des Châtelliers, M.C., Anderson, F.E. (2020) Phylogenomic analyses reveal a Palaeozoic radiation and support a freshwater origin for clitellate annelids. Zoologica Scripta, 49, 614–640.
- James, S.W. (2012) Re-erection of Rhinodrilidae Benham, 1890, a senior synonym of Pontoscolecidae James, 2012 (Annelida: Clitellata). Zootaxa, 3540, 67–68.
- James, S.W. & Davidson, S.K. (2012) Molecular phylogeny of earthworms (Annelida: Crassiclitellata) based on 28S, 18S and 16S gene sequences. Invertebrate Systematics 26(2), 213–229.
- Reynolds, J.W. & Wetzel, M.J. (2022) Nomenclatura Oligochaetologica – A catalogue of names, descriptions and type specimens. Editio Secunda. URL: https://nomenclatura-oligochaetologica.inhs.illinois.edu
- Schmelz, R., Erséus, C., Martin, P., Van Haaren, T. & Timm, T. (2021) A proposed order-level classification in Oligochaeta (Annelida, Clitellata). Zootaxa, 5040, 589–597.