Classification from Oliveira I, Read V, 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 With updates based on: Barnes, A., Reiss, T. and Daniels, S.R., 2020. Systematics of the Peripatopsis clavigera species complex (Onychophora: Peripatopsidae) reveals cryptic cladogenic patterning, with the description of five new species. Invertebrate Systematics, 34(6), pp.569-590. Chagas-Júnior, A. and Sampaio Costa, C., 2014. Macroperipatus ohausi: redescription and taxonomic notes on its status (Onychophora: Peripatidae). Revista de Biología Tropical, 62(3), pp.977-985. Costa, C.S., Chagas-Junior, A. and Pinto-da-Rocha, R., 2018. Redescription of Epiperipatus edwardsii, and descriptions of five new species of Epiperipatus from Brazil (Onychophora: Peripatidae). Zoologia (Curitiba), 35:e23366. Daniels, S.R., Dambire, C., Klaus, S. and Sharma, P.P., 2016. Unmasking alpha diversity, cladogenesis and biogeographical patterning in an ancient panarthropod lineage (Onychophora: Peripatopsidae: Opisthopatus cinctipes) with the description of five novel species. Cladistics, 32(5), pp.506-537. Daniels, S.R., McDonald, D.E. and Picker, M.D., 2013. Evolutionary insight into the Peripatopsis balfouri sensu lato species complex (Onychophora: Peripatopsidae) reveals novel lineages and zoogeographic patterning. Zoologica Scripta, 42(6), pp.656-674. de Sena Oliveira, I., Franke, F.A., Hering, L., Schaffer, S., Rowell, D.M., Weck-Heimann, A., Monge-Nájera, J., Morera-Brenes, B. and Mayer, G., 2012. Unexplored character diversity in Onychophora (velvet worms): a comparative study of three peripatid species. PloS one, 7(12), p.e51220 de Sena Oliveira, I. and Mayer, G., 2017. A new giant egg-laying onychophoran (Peripatopsidae) reveals evolutionary and biogeographical aspects of Australian velvet worms. Organisms Diversity & Evolution, 17(2), pp.375-391. de Sena Oliveira, I., Ruhberg, H., Rowell, D.M. and Mayer, G., 2018. Revision of Tasmanian viviparous velvet worms (Onychophora: Peripatopsidae) with descriptions of two new species. Invertebrate Systematics, 32(4), pp.909-932. de Sena Oliveira, I., Schaffer, S., Kvartalnov, P.V., Galoyan, E.A., Palko, I.V., Weck-Heimann, A., Geissler, P., Ruhberg, H. and Mayer, G., 2013. A new species of Eoperipatus (Onychophora) from Vietnam reveals novel morphological characters for the South-East Asian Peripatidae. Zoologischer Anzeiger-A Journal of Comparative Zoology, 252(4), pp.495-510. González, J.P.B., 2020. 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. Oliveira, I.D.S., Lacorte, G.A., Weck-Heimann, A., Cordeiro, L.M., Wieloch, A.H. and Mayer, G., 2015. A new and critically endangered species and genus of Onychophora (Peripatidae) from the Brazilian savannah–a vulnerable biodiversity hotspot. Systematics and Biodiversity, 13(3), pp.211-233. Ruhberg, H. and Daniels, S.R., 2013. Morphological assessment supports the recognition of four novel species in the widely distributed velvet worm Peripatopsis moseleyi sensu lato (Onychophora: Peripatopsidae). Invertebrate Systematics, 27(2), pp.131-145. Sato, S., Buckman-Young, R.S., Harvey, M.S. and Giribet, G., 2019. Cryptic speciation in a biodiversity hotspot: multilocus molecular data reveal new velvet worm species from Western Australia (Onychophora: Peripatopsidae: Kumbadjena). Invertebrate Systematics, 32(6), pp.1249-1264.