scholarly journals Velvet worm (Phylum Onychophora) on a sand island, in a wetland: Flushed from a Pleistocene refuge by recent rainfall?

2019 ◽  
Vol 45 (2) ◽  
pp. 264-267
Author(s):  
Jonathan C. Marshall ◽  
Hailey Martin
Keyword(s):  
Velvet Worm

scholarly journals Analysis of Pigment-Dispersing Factor Neuropeptides and Their Receptor in a Velvet Worm

2020 ◽  
Vol 11 ◽  
Author(s):  
Christine Martin ◽  
Lars Hering ◽  
Niklas Metzendorf ◽  
Sarah Hormann ◽  
Sonja Kasten ◽  
...  
Keyword(s):  
Pigment Dispersing Factor ◽  
Velvet Worm

Contrasting the population genetic structure of two velvet worm taxa (Onychophora : Peripatopsidae : Peripatopsis) in forest fragments along the south-eastern Cape, South Africa

2017 ◽  
Vol 31 (6) ◽  
pp. 781 ◽  
Author(s):  
Savel R. Daniels ◽  
Megan Dreyer ◽  
Prashant P. Sharma
Keyword(s):  
South Africa ◽  
Population Genetic ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Forest Fragments ◽  
Eastern Cape ◽  
Dna Sequence Data ◽  
Mtdna Coi ◽  
Haplotype Networks ◽  
Velvet Worm

During the present study, we examined the phylogeography and systematics of two species of velvet worm (Peripatopsis Pocock, 1894) in the forested region of the southern Cape of South Africa. A total of 89 P. moseleyi (Wood-Mason, 1879) and 65 P. sedgwicki (Purcell, 1899) specimens were collected and sequenced for the cytochrome c oxidase subunit I mtDNA (COI). In addition, a single P. sedgwicki specimen per sample locality was sequenced for the 18S rRNA locus. Furthermore, morphological variation among P. sedgwicki sample localities were explored using traditional alpha taxonomic characters. DNA sequence data were subjected to phylogenetic analyses using Bayesian inference and population genetic analyses using haplotype networks and analyses of molecular variance (AMOVAs). Phylogenetic results revealed the presence of four and three clades within P. moseleyi and P. sedgwicki respectively. Haplotype networks were characterised by the absence of shared haplotypes between clades, suggesting genetic isolation, a result corroborated by the AMOVA and highly significant FST values. Specimens from Fort Fordyce Nature Reserve were both genetically and morphologically distinct from the two remaining P. sedgwicki clades. The latter result suggests the presence of a novel lineage nested within P. sedgwicki and suggests that species boundaries within this taxon require re-examination.

Cryptic speciation in a biodiversity hotspot: multilocus molecular data reveal new velvet worm species from Western Australia (Onychophora : Peripatopsidae : Kumbadjena)

2018 ◽  
Vol 32 (6) ◽  
pp. 1249 ◽  
Author(s):  
Shoyo Sato ◽  
Rebecca S. Buckman-Young ◽  
Mark S. Harvey ◽  
Gonzalo Giribet
Keyword(s):  
Western Australia ◽  
18S Rrna ◽  
Mitochondrial Protein ◽  
Molecular Data ◽  
12S Rrna ◽  
Protein Coding ◽  
Complex Morphology ◽  
Velvet Worm ◽  
Three New Species ◽  
Western Australian

There is a yet uncovered multitude of species to be found among Western Australian Onychophora. Kumbadjena, one of the two genera that reside in this region, has been previously suggested to house an extensive species complex. Morphology alone has not been able to elucidate the diversity in this genus and has instead muddled species delineations. Topologies and species delimitation analyses resulting from the sequences of two mitochondrial ribosomal markers (12S rRNA and 16S rRNA), one nuclear ribosomal marker (18S rRNA), and one mitochondrial protein-coding gene (cytochrome c oxidase subunit I) are indicative of several undescribed species. Fixed diagnostic nucleotide changes in the highly conserved sequences of 18S rRNA warrant distinction of three new species of Kumbadjena: K. toolbrunupensis, sp. nov., K. karricola, sp. nov., and K. extrema, sp. nov. The geographic distributions of the proposed species suggest that Kumbadjena is another example of short-range endemism, a common occurrence in the flora and fauna of the region. The extensive biodiversity and endemism in the region necessitates conservation to preserve the species and processes that promote speciation harboured by Western Australia.

scholarly journals Low­-resolution vision in a velvet worm (Onychophora)

2018 ◽  
Vol 221 (11) ◽  
pp. jeb175802 ◽  
Author(s):  
John D. Kirwan ◽  
Josefine Graf ◽  
Jochen Smolka ◽  
Georg Mayer ◽  
Miriam J. Henze ◽  
...  
Keyword(s):  
Velvet Worm

scholarly journals A velvet worm (Onychophora: Peripatidae) feeding on a free ranging spider in Sierra Llorona, Panama

2018 ◽  
Vol 10 (2) ◽  
pp. 283-284
Author(s):  
Macario González ◽  
Ángel Sosa-Bartuano ◽  
Julián Monge-Nájera
Keyword(s):  
Velvet Worm ◽  
Free Ranging

Onychophoran worms seldom attack spiders because spiders are agile and dangerous prey. Here we report an onychophoran feeding on a spider (possibly a Ctenidae) in Sierra Llorona, Colón, Panamá (9,35863°-79,70287°; altitude 491 m).

scholarly journals Taxonomic Notes onMesoperipatus tholloni(Onychophora: Peripatidae), an Elusive Velvet Worm from Gabon

Breviora ◽  
2016 ◽  
Vol 552 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Cristiano S. Costa ◽  
Gonzalo Giribet
Keyword(s):  
Velvet Worm
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