Peripatopsidae

Peripatopsidae is one of the two living velvet worm families.[1][2]

Peripatopsidae
Euperipatoides kanangrensis in Australia
Scientific classification
Kingdom: Animalia
Phylum: Onychophora
Class: Udeonychophora
Order: Euonychophora
Family: Peripatopsidae
Bouvier, 1907
Genera

See text

Global range of Onychophora
  Peripatopsidae
  extant Peripatidae
  fossils

Description

The Peripatopsidae exhibit relatively many characteristics that are perceived as original or "primitive" with respect to the Peripatidae. The number of leg pairs in this family range from as few as 13 (in Ooperipatellus nanus[3]) to as many as 29 (in Paraperipatus papuensis[4][5]).[6][7] Behind or between the last leg pair is the genital opening (gonopore).[6] Both oviparous and ovoviviparous, as well as genuinely viviparous, species exist, although the Peripatopsidae essentially lack a placenta.

Distribution

The distribution of the Peripatopsidae is circumaustral; in particular, they inhabit Australasia, South Africa and Chile.[8]

Genera

The family contains the following genera:[9]

References

  1. Oliveira, I.; Hering, L. & Mayer, G. "Updated Onychophora checklist". Onychophora Website. Retrieved 24 November 2016.
  2. "Peripatopsidae (Bouvier, 1907)". Integrated Taxonomic Information System. Retrieved 17 March 2014.
  3. Yang, Jie; Ortega-Hernández, Javier; Gerber, Sylvain; Butterfield, Nicholas J.; Hou, Jin-bo; Lan, Tian; Zhang, Xi-guang (2015-07-14). "A superarmored lobopodian from the Cambrian of China and early disparity in the evolution of Onychophora". Proceedings of the National Academy of Sciences. 112 (28): 8678–8683. doi:10.1073/pnas.1505596112. ISSN 0027-8424. PMID 26124122 via ResearchGate.
  4. Monge-Nájera, Julián (1994). "Reproductive trends, habitat type and body characteristcs in velvet worms (Onychophora)". Revista de Biología Tropical: 611–622. ISSN 2215-2075.
  5. Sedgwick, A. (1910). "Peripatus papuensis". Nature. 83 (2117): 369–370. doi:10.1038/083369b0. ISSN 1476-4687.
  6. Giribet, Gonzalo; Edgecombe, Gregory D. (2020-03-03). 30. Onychophora. Princeton University Press. doi:10.1515/9780691197067-032. ISBN 978-0-691-19706-7.
  7. Mayer, Georg (2007-04-05). "Metaperipatus inae sp. nov. (Onychophora: Peripatopsidae) from Chile with a novel ovarian type and dermal insemination". Zootaxa. 1440 (1): 21–37. doi:10.11646/zootaxa.1440.1.2. ISSN 1175-5334 via ResearchGate.
  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.
  9. "Australian Faunal Directory". Australian Government Department of the Environment. Retrieved 29 June 2016.


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