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Registros recuperados: 12 | |
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Boxshall, G.; Huys, R.. |
Lack of attention to determining the homology of character states is recognized as being responsible for the ever increasing numbers of phylogenetic schemes for the Crustacea that appear and disappear so rapidly. Detailed study of musculature. segmentation and setation of the limbs of all 10 orders of copepods revealed numerous phylogenetically informative characters. based on segmental fusion patterns and the presence of individually identified setation elements. Simple counts of limb segments (or of setae) were found to be virtually useless for constructing phylogenies in the copepods. This conclusion can probably be extended to other crustacean groups. |
Tipo: Info:eu-repo/semantics/article |
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Ano: 1992 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7238 |
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Boxshall, G.; Huys, R.; Lincoln, R.. |
The tantulus larva ofMicrodajus langi is redescribed using Scanning Electron Microscopy. Thoracopods 2–5 have poorly developed but fully armed endites. Thoracopods 1–5 are biramous, with each ramus represented by a minute segment. A new species,M. pectinatus, is described from a tanaid host collected in the Rockall Trough, off the west coast of Scotland. A system of homologies for the portopodal segments of the thoracopods of the tantulus larva is proposed. Some aspects of the musculature of the adult male are described for the first time. |
Tipo: Info:eu-repo/semantics/article |
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Ano: 1989 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7072 |
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Huys, R.; Boxshall, G.. |
A new genus, <i>Centobnaster</i>, is proposed to accommodate a single female collected from deep water northeast of New Caledonia. <i>Centobnaster humesi</i>, new species, is placed in the family Erebonasteridae (Poecilostomatoida) on account of the distinct palp on the mandible and the external structure of the female genital system, comprising ventral paired copulatory pores and dorsolateral gonopores. <i>Centobnaste</i>r is considered the most primitive poecilostomatoid copepod known today because of the combined presence of 7-segmented antennules, a separate palp and unmodified gnathobase on the mandible, ventrally located paired copulatory pores, and midventral fifth legs jointed by an intercoxal sclerite. The... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Centobnaster; Centobnaster humesi; Cyclopoida; Erebonasteridae; Misophrioida; Paralubbockiidae Boxshal; Poecilostomatoida. |
Ano: 1990 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7186 |
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Fontaine, B.; Achterberg, C. van; Alonso-Zarazaga, M.A.; Araujo, R.; Asche, M.; Aspöck, H.; Aspöck, U.; Audisio, P.; Aukema, B.; Bailly, N.; Balsamo, M.; Bank, R.A.; Belfiore, C.; Bogdanowicz, W.; Boxshall, G.; Burckhardt, D.; Chylarecki, P.; Deharveng, L.; Dubois, A.; Enghoff, H.; Fochetti, R.; Fontaine, C.; Gargominy, O.; Gomez Lopez, M.S.; Goujet, D.; Harvey, M.S.; Heller, K.-G.; Helsdingen, Peter van; Hoch, H.; Jong, Y. de; Karsholt, O.; Los, W.; Magowski, W.; Massard, J.A.; McInnes, S.J.; Mendes, L.F.; Mey, E.; Michelsen, V.; Minelli, A.; Nieto Nafria, J.M.; Nieukerken, E.J. van; Pape, Th.; Prins, W. De; Ramos, M.; Ricci, C.; Roselaar, C.; Rota, E.; Segers, H.; Timm, T.; Tol, J. van; Bouchet, Ph.. |
Non-professional taxonomists have been responsible for describing more than half of the animal species discovered in Europe from 1998 to 2007 (see also Nature 467, 788; 2010). The extraordinary current rate of description of new species makes Europe an unexpected frontier for biodiversity exploration. The Fauna Europaea database (http://www.faunaeur.org), released in 2004, lists more than 125,000 European species of multicellular terrestrial and freshwater animals. More than 700 new species are described each year in Europe — four times the rate of two centuries ago. However, we have not yet reached saturation in the inventory of European fauna, and we cannot accurately estimate the total number of species living in the continent's ecosystems. |
Tipo: Article / Letter to the editor |
Palavras-chave: Taxonomy; Amateur taxonomists; Citizen science; 42.70. |
Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/364235 |
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Boxshall, G.; Huys, R.. |
Asterocheres reginae n. sp., of the family Asterocheridae, is described from the spongeAgelas clathrodes (Schmidt) collected at Carrie Bow Cay, Belize. It inhabits the internal canal system of its sponge host. A detailed description of both sexes is presented, and emphasis has been placed on the recognition of homologies between the limb segments and armature elements in accordance with the new evolutionary scheme established by Huys & Boxshall (1991). |
Tipo: Info:eu-repo/semantics/article |
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Ano: 1994 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7265 |
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Boxshall, G.; Huys, R.. |
The deep-sea planktonic copepod <i>Paralubbockia longipedia</i> is redescribed from the type specimens, and a new family of Poecilostomatoida is proposed to accommodate it. The Paralubbockiidae fam. nov. is characterized by two unique plesiomorphies, the ventrally located fifth legs and the retention of a separate maxillulary palp, and by the apomorphic states of the endopods of the swimming legs and of the antenna. The sister group of the Paralubbockiidae is identified as the family Oncaeidae. These are the only two poecilostomatoid families that have retained a vestige of the geniculation mechanism in the antennules of the male. The genus Laitmatobius Humes is here regarded as incertae sedis within the lineage comprising the Oncaeidae and the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oncaeidae; Paralubbockiidae. |
Ano: 1989 |
URL: http://www.vliz.be/imisdocs/publications/266825.pdf |
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Fontaine, B.; Achterberg, C. van; Alonso-Zarazaga, M.A.; Araujo, R.; Asche, M.; Aspöck, H.; Aspöck, U.; Audisio, P.; Aukema, B.; Bailly, N.; Balsamo, M.; Bank, R.A.; Belfiore, C.; Bogdanowicz, W.; Boxshall, G.; Burckhardt, D.; Chylarecki, P.; Deharveng, L.; Dubois, A.; Enghoff, H.; Fochetti, R.; Fontaine, C.; Gargominy, O.; Lopez, M.S.G.; Goujet, D.; Harvey, M.S.; Heller, K.-G.; Helsdingen, P. van; Hoch, H.; Jong, Y. de; Karsholt, O.; Los, W.; Magowski, W.; Massard, J.A.; McInnes, S.J.; Mendes, L.F.; Mey, E.; Michelsen, V.; Minelli, A.; Nafria, J.M.N.; Nieukerken, E.J. van; Pape, Th.; Prins, W. de; Ramos, M.; Ricci, C.; Roselaar, C.; Rota, E.; Segers, H.; Timm, T.; Tol, J. van; Bouchet, P.. |
The number of described species on the planet is about 1.9 million, with ca. 17,000 new species described annually, mostly from the tropics. However, taxonomy is usually described as a science in crisis, lacking manpower and funding, a politically acknowledged problem known as the Taxonomic Impediment. Using data from the Fauna Europaea database and the Zoological Record, we show that contrary to general belief, developed and heavily-studied parts of the world are important reservoirs of unknown species. In Europe, new species of multicellular terrestrial and freshwater animals are being discovered and named at an unprecedented rate: since the 1950s, more than 770 new species are on average described each year from Europe, which add to the 125,000... |
Tipo: Article / Letter to the editor |
Palavras-chave: Taxonomy; Biodiversity; Species; 42.48; 42.70. |
Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/420238 |
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Boxshall, G.; Huys, R.. |
A new genus of Tantulocarida, Stygotantulus, is described based on material from an anchialine pool on Lanzarote, Canary Islands. It is the most primitive tantulocarid known and is ectoparasitic on representatives of at least two families of harpacticoid copepods. It is distinguished by the presence of 7 abdominal somites in the tantulus larva. The musculature of the penis on trunk somite 7 of the male suggests that it is derived by modification of the seventh thoracopods. The importance of trunk somite numbers in maxillopodan systematics is reexamined and an attempt is made to apply the concept of homology to the developmental processes determining somite numbers. The classification of the Crustacea, including the Tantulocarida, proposed by Starobogatov... |
Tipo: Info:eu-repo/semantics/article |
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Ano: 1989 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7070 |
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Registros recuperados: 12 | |
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