Eoperipatus is a genus of velvet worms in the family Peripatidae.[1] These velvet worms have been reported from locations throughout Southeast Asia, including Malaysia, Singapore, Thailand, and Vietnam.[2] This genus exhibits lecithotrophic ovoviviparity; that is, mothers in this genus retain yolky eggs in their uteri.[3]
| Eoperipatus | |
|---|---|
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| Eoperipatus totoro | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Onychophora |
| Family: | Peripatidae |
| Genus: | Eoperipatus Evans, 1901 |
| Species | |
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See text | |
Etymology
editThis genus was first described in 1901 by Richard Evans of Jesus College at the University of Oxford. He proposed this genus to contain the newly discovered species E. horsti and E. weldoni as well as the species originally described as Peripatus sumatranus. The generic name Eoperipatus is derived from an Ancient Greek combining form of Ἠώς (ēṓs), meaning "dawn," and peripatos, meaning "walking about." This name refers to the distribution of these velvet worms in the Far East.[4]
Description
editThe number of legs in this genus varies within species as well as among species and ranges from 22 pairs (in E. butleri)[5] to 25 pairs (in E. horsti and E. weldoni).[4] In this genus, the crural tubercles form a single complex united by a dermal fold on each leg of two pregenital leg pairs. Males in this genus feature a single and medial anal gland opening on a pad in front of the anus. The male also features a circular pit on each quadrant of the genital pad, which is divided by a cruciform genital opening.[6][7][2] The female genital opening is a transverse slit. Each leg features two distal foot papillae, one anterior and one posterior.[2][6][4][8]
Species
editThe genus contains the following described species:[2]
- Eoperipatus butleri Evans, 1901
- Eoperipatus horsti Evans, 1901
- Eoperipatus totoro Oliveira et al., 2013
- Eoperipatus weldoni Evans, 1901
Eoperipatus sumatranus (Sedgwick, 1888) is considered a nomen dubium by Oliveira et al. 2012.[9]
In addition to these species, an undescribed species is known to occur in Thailand.[2][6] Furthermore, reports of Eoperipatus in Borneo and an unidentified velvet worm in central Vietnam, north of the known distribution of Eoperipatus totoro, may represent still more undescribed species of Eoperipatus.[2]
References
edit- ^ Oliveira I.; Hering L. & Mayer, G. "Updated Onychophora checklist". Onychophora Website. Retrieved 24 November 2016.
- ^ a b c d e f Oliveira, Ivo de Sena; Schaffer, Stefan; Kvartalnov, Pavel V.; Galoyan, Eduard A.; Palko, Igor V.; Weck-Heimann, Andreas; Geissler, Peter; Ruhberg, Hilke; Mayer, Georg (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. Bibcode:2013ZooAn.252..495O. doi:10.1016/j.jcz.2013.01.001.
- ^ 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
- ^ a b c 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.
- ^ Bouvier, E.-L. (1905). "Monographie des Onychophores". Annales des Sciences Naturelles, Zoologie (in French). 9 (2): 1–383 – via Biodiversity Heritage Library.
- ^ a b c Oliveira, Ivo de Sena; Franke, Franziska Anni; Hering, Lars; Schaffer, Stefan; Rowell, David M.; Weck-Heimann, Andreas; Monge-Nájera, Julián; Morera-Brenes, Bernal; Mayer, Georg (2012-12-17). "Unexplored Character Diversity in Onychophora (Velvet Worms): A Comparative Study of Three Peripatid Species". PLOS ONE. 7 (12): e51220. Bibcode:2012PLoSO...751220O. doi:10.1371/journal.pone.0051220. ISSN 1932-6203. PMC 3524137. PMID 23284667.
- ^ González, José Pablo Barquero; Sánchez-Vargas, Steven; Morera-Brenes, Bernal (2020-03-31). "A new giant velvet worm from Costa Rica suggests absence of the genus Peripatus (Onychophora: Peripatidae) in Central America". Revista de Biología Tropical. 68 (1): 300–320. doi:10.15517/rbt.v68i1.37675. ISSN 2215-2075.
- ^ Evans, R. (1901). "Eoperipatus butleri (nov sp)". Quarterly Journal of Microscopical Science. 44 (176): 539-545 – via Biodiversity Heritage Library.
- ^ Oliveira, Ivo; Read, V. Morley; Mayer, Georg (2012). "A world checklist of Onychophora (velvet worms), with notes on nomenclature and status of names". ZooKeys (211): 1–70. Bibcode:2012ZooK..211....1O. doi:10.3897/zookeys.211.3463. PMC 3426840. PMID 22930648.
External links
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Media related to Eoperipatus at Wikimedia Commons
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