A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae)
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; Peripatu...
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| Format: | Article |
| Language: | English |
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Vicerractoría Investigación
2010-12-01
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| Series: | Revista de Biología Tropical |
| Subjects: | |
| Online Access: | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000400006&lng=en&tlng=en |
| _version_ | 1797711431810940928 |
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| author | Bernal Morera-Brenes Julián Monge-Nájera |
| author_facet | Bernal Morera-Brenes Julián Monge-Nájera |
| author_sort | Bernal Morera-Brenes |
| collection | DOAJ |
| description | 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. Rev. Biol. Trop. 58 (4): 1127-1142. Epub 2010 December 01. |
| first_indexed | 2024-03-12T07:07:00Z |
| format | Article |
| id | doaj.art-45cc2ef594244e1cbc461b357f48366d |
| institution | Directory Open Access Journal |
| issn | 0034-7744 |
| language | English |
| last_indexed | 2024-03-12T07:07:00Z |
| publishDate | 2010-12-01 |
| publisher | Vicerractoría Investigación |
| record_format | Article |
| series | Revista de Biología Tropical |
| spelling | doaj.art-45cc2ef594244e1cbc461b357f48366d2023-09-02T23:20:45ZengVicerractoría InvestigaciónRevista de Biología Tropical0034-77442010-12-0158411271142S0034-77442010000400006A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae)Bernal Morera-Brenes0Julián Monge-Nájera1Universidad Nacional de HerediaUniversidad Estatal a DistanciaOnychophorans, 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. Rev. Biol. Trop. 58 (4): 1127-1142. Epub 2010 December 01.http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000400006&lng=en&tlng=enespecie nuevamecanismo de tejido de redonicóforo más grandeonicóforos fósiles y vivientes |
| spellingShingle | Bernal Morera-Brenes Julián Monge-Nájera A new giant species of placented worm and the mechanism by which onychophorans weave their nets (Onychophora: Peripatidae) Revista de Biología Tropical especie nueva mecanismo de tejido de red onicóforo más grande onicóforos fósiles y vivientes |
| title | 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_short | 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 |
| topic | especie nueva mecanismo de tejido de red onicóforo más grande onicóforos fósiles y vivientes |
| url | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000400006&lng=en&tlng=en |
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