Peripatopsis sedgwicki
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Onychophora
Family: Peripatopsidae
Genus: Peripatopsis
Species:
P. sedgwicki
Binomial name
Peripatopsis sedgwicki
Purcell, 1899
Synonyms
  • Peripatus dewaali (Weber, 1898)

Peripatopsis sedgwicki is a species of velvet worm in the Peripatopsidae family.[1] Also known as the Tsitsikamma velvet worm,[2] this species varies from blue-tan green to bright orange and brown violet.[3] This velvet worm has either 19 or 20 pairs of legs in most populations, but a discrete population in the Fort Fordyce Nature Reserve has either 22 or 23 leg pairs and probably represents a novel species.[4] The last leg pair (the genital pair) in this species features a claw[4] (like those on the pregenital pairs) and is reduced more in the male than in the female.[5][6] Females of this species range in size from 12 mm to 68 mm in length, whereas males range from 10 mm to 46 mm in length.[5] Like other velvet worms in this genus, this species exhibits matrotrophic viviparity, that is, mothers in this genus retain eggs in their uteri and supply nourishment to their embryos, but without any placenta.[7] The type locality is in South Africa.[8] This species has a limited geographic distribution but is especially abundant in the indigenous forest of the Tsitsikamma mountains.[5]

References

  1. ↑ Oliveira, I. S.; Hering, L. & Mayer, G. "Updated Onychophora checklist". Onychophora Website. Retrieved 24 November 2016.
  2. ↑ "Tsitsikamma Velvetworm (Peripatopsis sedgwicki)". iNaturalist. Retrieved 2023-03-07.
  3. ↑ Daniels, Savel R.; Picker, Mike D.; Cowlin, Ross M.; Hamer, Michelle L. (2009-05-01). "Unravelling evolutionary lineages among South African velvet worms (Onychophora: Peripatopsis) provides evidence for widespread cryptic speciation". Biological Journal of the Linnean Society. 97 (1): 200–216. doi:10.1111/j.1095-8312.2009.01205.x. ISSN 0024-4066.
  4. 1 2 Daniels, Savel R.; Dreyer, Megan; Sharma, Prashant P.; Daniels, Savel R.; Dreyer, Megan; Sharma, Prashant P. (2017-12-04). "Contrasting the population genetic structure of two velvet worm taxa (Onychophora : Peripatopsidae : Peripatopsis) in forest fragments along the south-eastern Cape, South Africa". Invertebrate Systematics. 31 (6): 781–796. doi:10.1071/IS16085. ISSN 1447-2600. S2CID 49530457.
  5. 1 2 3 Hamer, M.L.; Samways, M.J.; Ruhberg, H. (1997). "A review of the Onychophora of South Africa, with discussion of their conservation". Annals of the Natal Museum. 38 (1): 283–312.
  6. ↑ Purcell, W.F. (1899). "On the South African species of Peripatidae in the collection of the South African Museum". Annals of the South African Museum. 1: 331–351 – via Biodiversity Heritage Library.
  7. ↑ 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
  8. ↑ Oliveira, I. S.; Read, V. M. S. J.; Mayer, G. (2012). "A world checklist of Onychophora (velvet worms), with notes on nomenclature and status of names". ZooKeys (211): 1–70. doi:10.3897/zookeys.211.3463. PMC 3426840. PMID 22930648.


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