Onychophora


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Onychophora

a small subphylum of primitive arthropods containing the single genus Peripatus. They are worm-like, each segment having clawed limbs, and are probably descended from ancestors of the arthropods which diverged at an early and intermediate stage between annelids and arthropods.
References in periodicals archive ?
Environmental factors influencing the presence and abundance of a log-dwelling invertebrate, Euperipatoides rowelli (Onychophora: Peripatopsidae).
Cuatro nuevas especies del grupo Drosophila onychophora (Diptera, Drosophilidae) en el Parque Arqueologico Rumipamba, Pichincha, Ecuador.
The validity of many of these taxa is uncertain and ~10% of the described species of Onychophora, show major taxonomical problems and should be regarded as nomina dubia according to Mayer and Oliveira (2013).
Ramskold, "Homologies in Cambrian Onychophora," Lethaia 25 (1992): 443-60; L.
371-460 in Microscopic Anatomy of Invertebrates, Onychophora, Chilopoda and Lesser Protostomata, F.
[19] estudiaron al mismo tiempo relaciones evolutivas entre familias de tardigrados y de estos con respecto a Arthropoda y Onychophora, teniendo en cuenta el tiempo evolutivo de divergencia de cada grupo con los tardigrados.
In most phyla, although simple photoreception is almost universally present, no eyes evolved, but eyes evolved later in Annelida, Mollusca, Onychophora, and Chordata.
Disparity, decimation and the Cambrian "explosion": comparison of early Cambrian and Present faunal communities with emphasis on velvet worms (Onychophora).
Phylum 1 Onychophora (Onychophorans, Velvet Worms, Peripatuses)
Ancient lobopods and their modern counter-parts, in the phylum Onychophora, intrigue scientists because they may represent a link between two extremely successful phyla, Annelida (segmented worms) and Arthropoda.
No formal studies were made, so far, dealing with size constraints caused by the hydraulic skeleton of Onychophora.