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Coleodesmium (worm)
''Coleodesmium'' is a monotypic genus of worms belonging to the family Torquaratoridae Torquaratoridae (Latin for "neck plow") is a family of acorn worms ( Hemichordata) that lives in deep waters between 350 to 4000 meters (the species Tergivelum baldwinae has been found 4100 meters below the surface). They can grow up to three fe .... The only species is ''Coleodesmium karaensis''. The species is found in Arctic Russia. References {{Taxonbar, from1=Q61869572, from2=Q61868543 Enteropneusta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Genus
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda.' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Worm
Worms are many different distantly related bilateral animals that typically have a long cylindrical tube-like body, no limbs, and no eyes (though not always). Worms vary in size from microscopic to over in length for marine polychaete worms (bristle worms); for the African giant earthworm, '' Microchaetus rappi''; and for the marine nemertean worm (bootlace worm), '' Lineus longissimus''. Various types of worm occupy a small variety of parasitic niches, living inside the bodies of other animals. Free-living worm species do not live on land but instead live in marine or freshwater environments or underground by burrowing. In biology, "worm" refers to an obsolete taxon, '' vermes'', used by Carolus Linnaeus and Jean-Baptiste Lamarck for all non-arthropod invertebrate animals, now seen to be paraphyletic. The name stems from the Old English word '' wyrm''. Most animals called "worms" are invertebrates, but the term is also used for the amphibian caecilians and the slow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torquaratoridae
Torquaratoridae (Latin for "neck plow") is a family of acorn worms ( Hemichordata) that lives in deep waters between 350 to 4000 meters (the species Tergivelum baldwinae has been found 4100 meters below the surface). They can grow up to three feet in length and have semitransparent gelatinous bodies, often brightly colored. Cilia on their underside are used to glide over the ocean floor at about three inches per hour, while detritus is sucked into their gut, leaving behind a constant trail of feces. When deciding to move to new feeding locations, they empty their gut and drift over the bottom, aided by an excreted balloon of mucus, before they let themselves down somewhere else. One species (''Coleodesmium karaensis'') has been shown to care for the offspring by bearing about a dozen embryos surrounded by a thin membrane in shallow depressions on the surface of the mother's pharyngeal region. The proboscis skeleton is reduced to a small medial plate in one genus, while it is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
