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Onychophora
Onychophora (from grc, ονυχής, , "claws"; and , , "to carry"), commonly known as velvet worms (due to their velvety texture and somewhat wormlike appearance) or more ambiguously as peripatus (after the first described genus, '' Peripatus''), is a phylum of elongate, soft-bodied, many-legged panarthropods. In appearance they have variously been compared to worms with legs, caterpillars, and slugs. They prey upon other invertebrates, which they catch by ejecting an adhesive slime. Approximately 200 species of velvet worms have been described, although the true number of species is likely greater. The two extant families of velvet worms are Peripatidae and Peripatopsidae. They show a peculiar distribution, with the peripatids being predominantly equatorial and tropical, while the peripatopsids are all found south of the equator. It is the only phylum within Animalia that is wholly endemic to terrestrial environments, at least among extant members. Velvet worms are generally c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onychophora
Onychophora (from grc, ονυχής, , "claws"; and , , "to carry"), commonly known as velvet worms (due to their velvety texture and somewhat wormlike appearance) or more ambiguously as peripatus (after the first described genus, '' Peripatus''), is a phylum of elongate, soft-bodied, many-legged panarthropods. In appearance they have variously been compared to worms with legs, caterpillars, and slugs. They prey upon other invertebrates, which they catch by ejecting an adhesive slime. Approximately 200 species of velvet worms have been described, although the true number of species is likely greater. The two extant families of velvet worms are Peripatidae and Peripatopsidae. They show a peculiar distribution, with the peripatids being predominantly equatorial and tropical, while the peripatopsids are all found south of the equator. It is the only phylum within Animalia that is wholly endemic to terrestrial environments, at least among extant members. Velvet worms are generally c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peripatidae
Peripatidae is a family of velvet worms. The oldest putative representatives of the family herald from Burmese amber dated to the mid-Cretaceous, around 100 Ma, with representatives from Dominican and Baltic amber attesting to a broader distribution in the Palaeogene / Neogene; molecular variability suggests that the family's crown group may have arisen in the early Mesozoic. Description The Peripatidae exhibit a range of derivative features. They are longer, on average, than the Peripatopsidae and also have more leg pairs. The number of leg pairs in the Peripatidae range from 19 (in ''Typhloperipatus williamsoni'') to 43 (in ''Plicatoperipatus jamaicensis''). The gonopore is always between the penultimate leg pair. There are no oviparous species—the overwhelming majority are viviparous. The females of many viviparous species develop a placenta with which to provide the growing embryo with nutrients. Distribution The Peripatidae are restricted to the tropical and subtropical z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peripatopsidae
Peripatopsidae is one of the two living velvet worm families. 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'') to as many as 29 (in ''Paraperipatus papuensis''). Behind or between the last leg pair is the genital opening (gonopore). 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. Genera The family contains the following genera: * '' Acanthokara'' Reid, 1996 * '' Aethrikos'' Reid, 1996 * '' Aktinothele'' Reid, 1996 * ''Anoplokaros'' Reid, 1996 * '' Austroperipatus'' Baehr, 1977 * '' Baeothele'' Reid, 1996 * ''Centrorumis'' Reid, 1996 * '' Cephalofovea'' Ruhberg et al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panarthropoda
Panarthropoda is a proposed animal clade containing the extant phyla Arthropoda, Tardigrada (water bears) and Onychophora (velvet worms). Panarthropods also include extinct marine legged worms known as lobopodians ("Lobopodia"), a paraphyletic group where the last common ancestor and basal members (stem-group) of each extant panarthropod phylum are thought to have risen. However the term "Lobopodia" is sometimes expanded to include tardigrades and onychophorans as well. Common characteristics of the Panarthropoda include a segmented body, paired ladder-like, ventral nervous system, and the presence of paired appendages correlated with body segments. Taxonomy Not all studies support the monophyly of Panarthropoda, but most do, including neuroanatomical, phylogenomic and palaeontological studies. At least a close relationship between onychophorans and arthropods is widely agreed upon, but the position of tardigrades is more controversial. Some phylogenomic studies have f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plicatoperipatus Jamaicensis
''Plicatoperipatus'' is a monospecific genus of velvet worm containing the single species ''Plicatoperipatus jamaicensis''. It is endemic to Jamaica. This species ranges from 25 mm to 65 mm in length. Males in this species have 35 pairs of legs; females have 43 pairs, the maximum number found in the phylum Onychophora. Conservation This species is listed as Near Threatened by the IUCN Red List The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biol .... References Further reading * * Endemic fauna of Jamaica IUCN-assessed onychophorans Monotypic protostome genera Onychophorans of tropical America Onychophoran genera Taxonomy articles created by Polbot {{Onychophora-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ooperipatellus Nanus
''Ooperipatellus nanus'' is a species of velvet worm in the family Peripatopsidae. This species is endemic to New Zealand and is found in the South Island. Taxonomy This species was first described by Hilke Ruhberg in 1985. Description ''O. nanus'' is a small species of velvet worm that grows to a length of approximately 10 mm. This species is tan or brown in color on its back but yellow on its underside. It is oviparous and has 13 pairs of legs, which is the minimum number found in the phylum Onychophora. Distribution ''O. nanus'' has only been found in Southland, in the Takitimu Mountains. Life cycle This species produce young by laying eggs from which the young subsequently hatch. Host species ''O. nanus'' are found mainly in rotting beech logs. Conservation status This species has been classified as having the "At Risk, Naturally Uncommon" conservation status under the New Zealand Threat Classification System The New Zealand Threat Classification System is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peripatus
''Peripatus'' is a genus of velvet worms in the Peripatidae family. The name "peripatus" (unitalicised and uncapitalised) is also used to refer to the Onychophora as a whole, although this group comprises many other genera besides ''Peripatus''. The genus ''Peripatus'' is found in Central America, the Caribbean and northern South America. Species The genus contains the following species: * '' Peripatus basilensis'' Brues, 1935 – Haiti * '' Peripatus bouvieri'' Fuhrmann, 1913 – Colombia * '' Peripatus brolemanni'' Bouvier, 1899 – Venezuela * '' Peripatus danicus'' Bouvier, 1900 – Virgin Islands * '' Peripatus darlingtoni'' Brues, 1935 – Haiti * '' Peripatus dominicae'' Pollard, 1894 – Dominica * '' Peripatus evelinae'' (Marcus, 1937) – Brazil * '' Peripatus haitiensis'' Brues, 1913 – Haiti * '' Peripatus heloisae'' Carvalho, 1941 – Brazil * '' Peripatus juanensis'' Bouvier, 1900 – Puerto Rico * '' Peripatus juliformis'' Guilding, 1826 – Saint Vincent Is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oroperipatus
''Oroperipatus'' is a genus of Neotropical velvet worms in the family Peripatidae. Species The genus contains the following species: * '' Oroperipatus balzani'' (Camerano, 1897) * '' Oroperipatus belli'' (Bouvier, 1904) * '' Oroperipatus bimbergi'' (Fuhrmann, 1913) * '' Oroperipatus bluntschli'' Fuhrmann, 1915 * '' Oroperipatus cameranoi'' (Bouvier, 1899) * '' Oroperipatus corradoi'' (Camerano, 1898) * '' Oroperipatus ecuadorensis'' (Bouvier, 1902) * '' Oroperipatus eisenii'' (Wheeler, 1898) * '' Oroperipatus intermedius'' (Bouvier, 1901) * '' Oroperipatus koepckei'' Zilch, 1954 * '' Oroperipatus lankesteri'' (Bouvier, 1899) * '' Oroperipatus multipodes'' (Fuhrmann, 1913) * '' Oroperipatus omeyrus'' Marcus, 1952 * '' Oroperipatus peruvianus'' Brues, 1917 * '' Oroperipatus soratanus'' (Bouvier, 1901) * '' Oroperipatus tuberculatus'' (Bouvier, 1898) * '' Oroperipatus weyrauchi'' Marcus, 1952 ''Oroperipatus goudoti'' (Bouvier, 1899), ''Oroperipatus quitensis'' (Schmarda, 1871), a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tertiapatidae
''Tertiapatus'' is an extinct genus of onychophora Onychophora (from grc, ονυχής, , "claws"; and , , "to carry"), commonly known as velvet worms (due to their velvety texture and somewhat wormlike appearance) or more ambiguously as peripatus (after the first described genus, '' Peripatus ...ns known from Dominican amber deposits. The only known species described is ''Tertiapatus dominicanus''. References Prehistoric onychophorans Onychophorans of tropical America Onychophoran genera Monotypic protostome genera Prehistoric protostome genera Taxa named by George Poinar Jr. {{Onychophora-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Succinipatopsidae
''Succinipatopsis'' is an extinct onychophoran genus known from Eocene-aged Baltic amber The Baltic region is home to the largest known deposit of amber, called Baltic amber or succinite. It was produced sometime during the Eocene epoch, but exactly when is controversial. It has been estimated that these forests created more than 1 .... The only known species described is ''Succinipatopsis balticus''. References Monotypic protostome genera Prehistoric onychophorans Onychophoran genera Onychophorans of Europe Prehistoric protostome genera Baltic amber Fossil taxa described in 2000 Taxa named by George Poinar Jr. {{Onychophora-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euonychophora
Euonychophora is an order of Onychophora representing all living onychophorans; the Peripatidae (including the fossil †'' Cretoperipatus'') and Peripatopsidae. Their feet possess a pair of claws and a pad, and are covered with pustules. All remaining onychophorans are fossil species in the order Ontonychophora Ontonychophora is an extinct order of onychophoran consisting of organisms with simple lobopods that lack terminal feet. It includes all fossil onychophorans except †'' Cretoperipatus'', which is in the Euonychophora along with all remaining m .... References External links * Onychophoran orders {{Onychophore-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helenodoridae
''Helenodora'' is an extinct basal onychophoran or lobopodian genus known from the Carboniferous Carbondale Formation of Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolita .... The only known species described is ''H. inopinata''. The ecology of this animal is not well known, but it is thought that it may have lived on land and/or underwater. References External links * Onychophorans of temperate America Onychophoran genera Prehistoric onychophorans Prehistoric protostome genera Carboniferous invertebrates Carboniferous United States Fossils of the United States Fossil taxa described in 1980 {{Onychophore-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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