Eoperipatus

Eoperipatus is a Southeast Asian genus of velvet worm in the family Peripatidae.[1] The number of legs in this genus varies within species as well as among species and ranges from 22 pairs (in E. butleri)[2] to 25 pairs (in E. horsti and E. weldoni).[3] This genus exhibits lecithotrophic ovoviviparity; that is, mothers in this genus retain yolky eggs in their uteri.[4]

Eoperipatus
Eoperipatus totoro
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Onychophora
Family: Peripatidae
Genus: Eoperipatus
Evans, 1901
Species

See text

Species

The genus contains the following described species:[5]

Eoperipatus sumatranus (Sedgwick, 1888) is considered a nomen dubium by Oliveira et al. 2012.

First recorded in Vietnam, Eoperipatus has now been found distributed throughout South-East Asia.[6] An undescribed species is known to occur in Thailand. In addition, unidentified onychophorans have also been observed in Borneo and in central Vietnam, north of the known distribution of Eoperipatus totoro. These may or may not represent distinct species.[5] These species have been hard to study as they live in cryptic environments and have low population densities.[7]

References
  1. Oliveira I.; Hering L. & Mayer, G. "Updated Onychophora checklist". Onychophora Website. Retrieved 24 November 2016.
  2. Bouvier, E.-L. (1905). "Monographie des Onychophores". Annales des Sciences Naturelles, Zoologie (in French). 9 (2): 1–383 – via Biodiversity Heritage Library.
  3. Evans, Richard (1901). "On two new species of Onychophora from the Siamese Malay States". Quarterly Journal of Microscopical Science. 44: 473–538 – via Biodiversity Heritage Library.
  4. Mayer, Georg; Franke, Franziska Anni; Treffkorn, Sandra; Gross, Vladimir; de Sena Oliveira, Ivo (2015), Wanninger, Andreas (ed.), "Onychophora", Evolutionary Developmental Biology of Invertebrates 3, Vienna: Springer Vienna, pp. 53–98, doi:10.1007/978-3-7091-1865-8_4, ISBN 978-3-7091-1864-1, retrieved 2023-02-15
  5. de Sena Oliveira, Ivo (2013). "A new species of Eoperipatus (Onychophora) from Vietnam reveals novel morphological characters for the South-East Asian Peripatidae". Zoologischer Anzeiger. 252 (4): 495–510. doi:10.1016/j.jcz.2013.01.001.
  6. Bai, Thai Tran; Anh, Nguyen Duc (2010). "Discovery of Eoperipatus sp. (Peripatidae), the first representative of Onychophora in Vietnam". Academia Journal of Biology (in Vietnamese). 32 (4): 36–39. doi:10.15625/0866-7160/v32n4.718. ISSN 2815-5920.
  7. Baker, Caitlin (2021). "Phylogenomic analysis of Velvet Worms (Onychophora) uncovers an evolutionary radiation in the Neotropics". Molecular Biology and Evolution. 38 (12): 5391–5404. doi:10.1093/molbev/msab251. PMC 8662635. PMID 34427671. Retrieved 2022-10-28.


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