A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae)
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| Formato: | Online |
| Idioma: | eng |
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Universidad de Costa Rica
2010
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/5398 |
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RBT53982022-06-06T18:38:15Z A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae) A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae) Morera Brenes, Bernal Monge Nájera, Julián new species net weaving mechanism largest onychophoran fossil and extant velvet worms Peripatidae taxonomy Costa Rica Peripatus especie nueva mecanismo de tejido de red onicóforo más grande onicóforos fósiles y vivientes Onychophorans, or velvet worms, are poorly known and rare animals. Here we report the discovery of a new species that is also the largest onychophoran found so far, a 22cm long female from the Caribbean coastal forest of Costa Rica. Specimens were examined with Scanning Electron Microscopy; Peripatus solorzanoi sp. nov., is diagnosed as follows: primary papillae convex and conical with rounded bases, with more than 18 scale ranks. Apical section large, spherical, with a basal diameter of at least 20 ranks. Apical piece with 6-7 scale ranks. Outer blade 1 principal tooth, 1 accessory tooth, 1 vestigial accessory tooth (formula: 1/1/1); inner blade 1 principal tooth, 1 accessory tooth, 1 rudimentary accessory tooth, 9 to 10 denticles (formula: 1/1/1/9-10). Accessory tooth blunt in both blades. Four pads in the fourth and fifth oncopods; 4th. pad arched. The previously unknown mechanism by which onychophorans weave their adhesive is simple: muscular action produces a swinging movement of the adhesive-spelling organs; as a result, the streams cross in mid air, weaving the net. Like all onychophorans, P. solorzanoi is a rare species: active protection of the habitat of the largest onychophoran ever described, is considered urgent. Universidad de Costa Rica 2010-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/5398 10.15517/rbt.v58i4.5398 Revista de Biología Tropical; Vol. 58 No. 4 (2010): Volume 58 – Regular number 4 – December 2010; 1127–1142 Revista de Biología Tropical; Vol. 58 Núm. 4 (2010): Volumen 58 – Número regular 4 – Diciembre 2010; 1127–1142 Revista Biología Tropical; Vol. 58 N.º 4 (2010): Volume 58 – Regular number 4 – December 2010; 1127–1142 2215-2075 0034-7744 10.15517/rbt.v58i4 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/5398/5144 Copyright (c) 2010 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
eng |
| format |
Online |
| author |
Morera Brenes, Bernal Monge Nájera, Julián |
| spellingShingle |
Morera Brenes, Bernal Monge Nájera, Julián A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae) |
| author_facet |
Morera Brenes, Bernal Monge Nájera, Julián |
| author_sort |
Morera Brenes, Bernal |
| title |
A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae) |
| title_short |
A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae) |
| title_full |
A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae) |
| title_fullStr |
A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae) |
| title_full_unstemmed |
A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae) |
| title_sort |
new giant species of placented worm and the mechanism by which onychophorans weave their nets (onychophora: peripatidae) |
| title_alt |
A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae) |
| publisher |
Universidad de Costa Rica |
| publishDate |
2010 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/5398 |
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