Results 171 to 180 of about 5,821 (219)
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1975
Eucoelomata in which:- 1. The body is not clearly differentiated into regions, although there is some evidence of metamerism. 2. There is no definite head. 3. The gut is straight and the anus is terminal. 4. The nervous system consists of pre-oral ganglia joined by circum-oesophageal commissures to a double ...
J. E. Webb, J. A. Wallwork, J. H. Elgood
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Eucoelomata in which:- 1. The body is not clearly differentiated into regions, although there is some evidence of metamerism. 2. There is no definite head. 3. The gut is straight and the anus is terminal. 4. The nervous system consists of pre-oral ganglia joined by circum-oesophageal commissures to a double ...
J. E. Webb, J. A. Wallwork, J. H. Elgood
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2018
The list of tardigrade taxa up to a sub-generic level, with the type species of each genus and the numbers of lower taxa in each taxon (known in the end of June 2018) is here presented together with the main environments in which taxa were found. Each listed taxon is characterized by characters common to all lower taxa using predominantly most recent ...
Degma, Peter, Guidetti, Roberto
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The list of tardigrade taxa up to a sub-generic level, with the type species of each genus and the numbers of lower taxa in each taxon (known in the end of June 2018) is here presented together with the main environments in which taxa were found. Each listed taxon is characterized by characters common to all lower taxa using predominantly most recent ...
Degma, Peter, Guidetti, Roberto
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Patterning on Living Tardigrades
Nano LettersMicro/nanofabrication techniques have revolutionized modern photonics and electronics. However, conventional methods remain incompatible with living organisms due to inherent constraints including nonconformal coating, radiation damage, and toxic solvent requirements.
Zhirong Yang +4 more
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Rearing Tardigrades: Results and Problems
Zoologischer Anzeiger - A Journal of Comparative Zoology, 2001Abstract We report our first results of attempts to rear four species of eutardigrades inhabiting different substrates, feeding on different kinds of food and characterized by different sexual conditions and modes of reproduction. Attempts were carried out to follow individual terrestrial carnivorous (Macrobiotus richtersi, M.
ALTIERO, Tiziana, REBECCHI, Lorena
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Tardigrades of North America: Aquatic Tardigrades of Western Missouri, U.S.A.
Transactions of the Kansas Academy of Science, 2018Fresh water tardigrades are an under documented group in the United States. In the 80 years since the first aquatic tardigrade was reported, there have been only 106 records across only 19 states and more than half of the 29 species have been recorded only once.
Philip A. Staley +3 more
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Preserving tardigrades under pressure
Nature, 1998When an animal is exposed to high hydrostatic pressure, its cellular membranes1,2, proteins3,4,5 and DNA6 are damaged. At pressures of around 30 megapascals (MPa), proliferation and metabolism in micro-organisms stops; at 300 MPa, most bacteria and multicellular organisms die.
Kunihiro Seki, Masato Toyoshima
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Transactions of the Kansas Academy of Science (1903-), 1967
Tardigrades have been reported from only 21 of the states in this country. This scarcity of published records is hardly indicative of the abundance of these animals. There are two good reasons for this lack of literature. First, unless one is working in rotifers, free-living nematodes, water-bears, or plankton and benthose, tradigrades probably won't ...
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Tardigrades have been reported from only 21 of the states in this country. This scarcity of published records is hardly indicative of the abundance of these animals. There are two good reasons for this lack of literature. First, unless one is working in rotifers, free-living nematodes, water-bears, or plankton and benthose, tradigrades probably won't ...
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Two new tardigrade species from Sicily
Zootaxa, 2014Two new species of tardigrades are described from Sicilian moss samples: Macrobiotus insuetus sp. nov. and Diphascon (Diphascon) procerum sp. nov. Macrobiotus insuetus sp. nov. is a species of the harmsworthi-group characterized by both posterior and anterior claws of the hind legs, which are different in shape from those of the first three leg ...
Pilato G +2 more
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Comments on the eyes of tardigrades
Arthropod Structure & Development, 2007A survey is given on the scarce information on the visual organs (eyes or ocelli) of Tardigrada. Many Eutardigrada and some Arthrotardigrada, namely the Echiniscidae, possess inverse pigment-cup ocelli, which are located in the outer lobe of the brain, and probably are of cerebral origin.
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