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Milnesium Antarcticum
''Milnesium antarcticum'' is a species of Eutardigrades in the family Milnesiidae. This species differs from its cogenerate species mainly by proportions of its claws and buccopharyngeal apparatus. References Further reading *Smykla, Jerzy, et al. "Diversity and distribution of tardigrades in soils of Edmonson Point (Northern Victoria Land, continental Antarctica)." Czech Polar Rep 2 (2012): 61-70. *Sands, Chester J., et al. "Phylum Tardigrada: an “individual” approach."Cladistics 24.6 (2008): 861-871. Apochela Animals described in 2006 {{Tardigrade-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutardigrade
Eutardigrada are a class of tardigrades (Tardigrada) without lateral appendices. Primarily freshwater bound, some species have secondarily gained the ability to live in marine environments ('' Halobiotus''). By cryptobiosis many species are able to live temporarily in very dry environments. More than 700 species have been described. The order Apochela consists of only one family, Milnesiidae, with two genera: '' Milnesium'' and '' Limmenius''. ''Milnesium tardigradum'' can be found worldwide and is one of the biggest species among tardigrades (up to 1.4 mm); similar-looking species have been found in Cretaceous amber. The mouth of this predator has a wide opening, so the animal can eat rotifers and larger protist A protist () is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor (the last eukaryotic common ancestor), the e ...s. Other eut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milnesiidae
Milnesiidae is a family of tardigrades of the class Eutardigrada It is the sole family in the order Apochela. Genera The family consists of the following genera: * '' Bergtrollus'' Dastych, 2011 * '' Limmenius'' Horning, Schuster & Grigarick, 1978 * '' Milnesioides'' Claxton, 1999 * ''Milnesium ''Milnesium'' is a genus of tardigrades. It is rather common, being found in a wide variety of habitats across the world. It has a fossil record extending back to the Cretaceous, the oldest species found so far (''M. swolenskyi'') is known from T ...'' Doyère, 1840 References External links * Tardigrade families Apochela {{Tardigrade-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Claw
A claw is a curved, pointed appendage found at the end of a toe or finger in most amniotes (mammals, reptiles, birds). Some invertebrates such as beetles and spiders have somewhat similar fine, hooked structures at the end of the leg or tarsus for gripping a surface as they walk. The pincers of crabs, lobsters and scorpions, more formally known as their chelae, are sometimes called claws. A true claw is made of a hard protein called keratin. Claws are used to catch and hold prey in carnivorous mammals such as cats and dogs, but may also be used for such purposes as digging, climbing trees, self-defense and grooming, in those and other species. Similar appendages that are flat and do not come to a sharp point are called nails instead. Claw-like projections that do not form at the end of digits but spring from other parts of the foot are properly named spurs. Tetrapods In tetrapods, claws are made of keratin and consist of two layers. The unguis is the harder external lay ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
