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Acanthobdella Livanowi
''Acanthobdella'' is a genus of annelids belonging to the family Acanthobdellidae. The species of this genus are found in Europe and North America. Species: *'' Acanthobdella livanowi'' *''Acanthobdella peledina ''Acanthobdella peledina'' is a species of leech-like clitellate in the order Acanthobdellida. It feeds on the skin and blood of freshwater fishes in the boreal regions of northern Europe, Asia and North America. Taxonomy The taxonomy of Acan ...'' References {{Taxonbar, from=Q18518922 Annelids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthobdella Livanowi
''Acanthobdella'' is a genus of annelids belonging to the family Acanthobdellidae. The species of this genus are found in Europe and North America. Species: *'' Acanthobdella livanowi'' *''Acanthobdella peledina ''Acanthobdella peledina'' is a species of leech-like clitellate in the order Acanthobdellida. It feeds on the skin and blood of freshwater fishes in the boreal regions of northern Europe, Asia and North America. Taxonomy The taxonomy of Acan ...'' References {{Taxonbar, from=Q18518922 Annelids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthobdella Peledina
''Acanthobdella peledina'' is a species of leech-like clitellate in the order Acanthobdellida. It feeds on the skin and blood of freshwater fishes in the boreal regions of northern Europe, Asia and North America. Taxonomy The taxonomy of Acanthobdellida has been contentious for many years, but it is now recognized as the sister group to leeches. ''Acanthobdella peledina'' was first described by the German zoologist Adolph Eduard Grube in 1851. For a long time, it was believed to be the only species in the order, but in 1966, another species, '' Paracanthobdella livanowi'', was described from the vicinity of the Kamchatka Peninsula in eastern Siberia. Description ''A. peledina'' differs from leeches in not having a well-developed sucker at its anterior end; instead, it attaches to its host with about forty hooked chaetae (chitinous bristles) borne on its first five segments. It is in fact unique among Hirudinea in having chaetae at all, and also in having a coelom (body cavi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annelids
The annelids (Annelida , from Latin ', "little ring"), also known as the segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecologies – some in marine environments as distinct as tidal zones and hydrothermal vents, others in fresh water, and yet others in moist terrestrial environments. The Annelids are bilaterally symmetrical, triploblastic, coelomate, invertebrate organisms. They also have parapodia for locomotion. Most textbooks still use the traditional division into polychaetes (almost all marine), oligochaetes (which include earthworms) and leech-like species. Cladistic research since 1997 has radically changed this scheme, viewing leeches as a sub-group of oligochaetes and oligochaetes as a sub-group of polychaetes. In addition, the Pogonophora, Echiura and Sipuncula, previously regarded as separate phyla, are now regarded as sub-groups of polychae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthobdellidae
''Acanthobdella'' is a genus of annelids belonging to the family Acanthobdellidae. The species of this genus are found in Europe and North America. Species: *''Acanthobdella livanowi'' *''Acanthobdella peledina ''Acanthobdella peledina'' is a species of leech-like clitellate in the order Acanthobdellida. It feeds on the skin and blood of freshwater fishes in the boreal regions of northern Europe, Asia and North America. Taxonomy The taxonomy of Acan ...'' References {{Taxonbar, from=Q18518922 Annelids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
