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Topic: Eutardigrada


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DNA

In the News (Mon 28 Dec 09)

  
  Altiero, T   (Site not responding. Last check: 2007-10-15)
Altiero, T. and Rebecchi, L. First evidence of achiasmatic male meiosis in the water bears Richtersius coronifer and Macrobiotus richtersi (Eutardigrada, Macrobiotidae).
Chromosome behaviour during male meioses has been studied in two bisexual amphimictic populations of two tardigrade species, namely Richtersius coronifer and Macrobiotus richtersi (Eutardigrada, Macrobiotidae).
Both bisexual populations exhibit a diploid chromosome number 2n = 12 and no sex chromosomes were identified.
oikos.ekol.lu.se /hereditas/Hereditas.139.2.abstracts/H1719Altiero.htm   (182 words)

  
 Prof. Roberto Bertolani, Department of Animal Biology- UNiversity of Modena and Reggio Emilia
Bertolani R., V.I. Biserov - 1996 - Leg and claw adaptations in soil tardigrades, with erection of two new genera of Eutardigrada, Macrobiotidae: Pseudohexapodibius and Xerobiotus.
Bertolani R., N. Marley, D.R. Nelson - 1999 - Re-description of the genus Thulinia (Eutardigrada, Hypsibiidae) and of Thulinia augusti (Murray, 1907) comb.
Guidetti R., L. Rebecchi, R. Bertolani - 2000 - Cuticle structure and the systematics of Macrobiotidae (Tardigrada, Eutardigrada).
www.bioanimale.unimo.it /eng/Info/Docenti/Bertolani.html   (770 words)

  
 The Tardigrade Animations' Gallery
In our example the genus Macrobiotus is a part of the higher grouping Eutardigrada.
The Eutardigrada again are a part of the water bear phylum.
The red cells within the table below show the line of determination beginning with the phylum, passing on to the order Eutardigrada, the genus Macrobiotus and, as an example, the exact species Macrobiotus areolatus.
www.baertierchen.de /zoolsyse.html   (899 words)

  
 Tardigrada
Phylogenetic relationships in the Macrobiotidae (Tardigrada: Eutardigrada: Parachela).
Cuticle structure and systematics of Macrobiotidae (Tardigrada: Eutardigrada).
Pilato, G. The systematics of Eutardigrada - a comment.
tolweb.org /tree?group=Tardigrada&contgroup=Bilateria   (619 words)

  
 Encyclopedia: Animal
This article needs to be cleaned up to conform to a higher standard of quality.
Classes Heterotardigrada Mesotardigrada Eutardigrada Tardigrades (Tardigrada), or water bears, are a phylum of small, segmented animals, similar and related to the Arthropods.
Jump to: navigation, search Sections Dromiacea Raninoida Heterotremata Thoracotremata The term crab is often applied to several different groups of short (nose to tail) decapods with thick exoskeletons, but only members of the Brachyura are true crabs; other taxa, such as hermit crabs, porcelain crabs, king crabs, and horseshoe crabs...
www.nationmaster.com /encyclopedia/Animal   (8920 words)

  
 VITAE   (Site not responding. Last check: 2007-10-15)
Two new species of Doryphoribius (Eutardigrada, Hypsibiidae) from North America.
(Eutardigrada, Calohypsibiidae) with remarks on the systematic position of the new genus.
Beasley, Clark W. Photokinesis of Macrobiotus hufelandi (Tardigrada, Eutardigrada).
www.mcm.edu /~beasleyc/vitae.htm   (472 words)

  
 Phylum Tardigrada summary for Zoology 6207, Spring 1982, WR Elsberry
In the Eutardigrada, gonoducts open into the rectum.
When deprived of oxygen, tardigrades will enter an anoxybiotic state: the animal swells, the body becomes turgid and movement ceases.
Class Eutardigrada: Lacks anterior cirri and lateral filaments
www.rtis.com /nat/user/elsberry/taxa/tardigra.html   (896 words)

  
 Pilato & Binda--Two new species of Diphascon
Two new species of Diphascon (Eutardigrada) from New South Wales, Australia
Abstract Two new Australian species of Diphascon (Eutardigrada) are described: Diphascon (Diphascon) claxtonae sp.
Keywords Australian fauna; Eutardigrada; Diphascon (D.) claxtonae sp.
www.rsnz.org /publish/nzjz/1998/17.php   (79 words)

  
 Arthropoda
They live in water, although the ‘water’ may be the moisture held between the leaves of a moss, and they are capable of producing a thick-walled, protective resting cyst and surviving long periods of dessication (and, apparently, immersion in alcohol, freezing, boiling, vacuum and irradiation; Tudge 2000, p.
The group comprises three classes: Heterotardigrada, Eutardigrada, and Mesotardigrada.
For discussion and references, see Dewel and Dewel 1997.
www.peripatus.gen.nz /Taxa/Arthropoda/Index.html   (4669 words)

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