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Sagitella Praecox
''Sagitella'' is a genus of annelids belonging to the family Typhloscolecidae. The genus has almost cosmopolitan distribution. Species: *''Sagitella bobretzkii'' *''Sagitella kowalewskii ''Sagitella'' is a genus of annelids belonging to the family Typhloscolecidae. The genus has almost cosmopolitan distribution. Species: *''Sagitella bobretzkii ''Sagitella'' is a genus of annelids belonging to the family Typhloscolecidae. ...'' *'' Sagitella praecox'' References {{Taxonbar, from=Q3903886 Annelids ... [...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 po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Typhloscolecidae
Typhloscolecidae is a family of polychaetes belonging to the order Phyllodocida. Genera: * ''Acicularia ''Acicularia'' is a genus of green algae in the family Dasycladaceae The Dasycladaceae is one of the two extant families of green algae of the order Dasycladales. When found in Palaeozoic limestones, they typically indicate depositional dept ...'' Langerhans, 1877 * '' Nuchubranchia'' Treadwell, 1928 * '' Plotobia'' Chamberlin, 1919 * '' Sagitella'' Wagner, 1872 * '' Travisiopsis'' Levinsen, 1885 * '' Typhloscolex'' Busch, 1851 References {{Taxonbar, from=Q3892406 Polychaetes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmopolitan Distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The extreme opposite of a cosmopolitan species is an endemic one, being found only in a single geographical location. Qualification The caveat “in appropriate habitat” is used to qualify the term "cosmopolitan distribution", excluding in most instances polar regions, extreme altitudes, oceans, deserts, or small, isolated islands. For example, the housefly is highly cosmopolitan, yet is neither oceanic nor polar in its distribution. Related terms and concepts The term pandemism also is in use, but not all authors are consistent in the sense in which they use the term; some speak of pandemism mainly in referring to diseases and pandemics, and some as a term intermediate between endemism and cosmopolitanism, in effect regarding pandemism as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sagitella Bobretzkii
''Sagitella'' is a genus of annelids belonging to the family Typhloscolecidae. The genus has almost cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext .... Species: *'' Sagitella bobretzkii'' *'' Sagitella kowalewskii'' *'' Sagitella praecox'' References {{Taxonbar, from=Q3903886 Annelids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sagitella Kowalewskii
''Sagitella'' is a genus of annelids belonging to the family Typhloscolecidae. The genus has almost cosmopolitan distribution. Species: *''Sagitella bobretzkii ''Sagitella'' is a genus of annelids belonging to the family Typhloscolecidae. The genus has almost cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most o ...'' *'' Sagitella kowalewskii'' *'' Sagitella praecox'' References {{Taxonbar, from=Q3903886 Annelids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sagitella Praecox
''Sagitella'' is a genus of annelids belonging to the family Typhloscolecidae. The genus has almost cosmopolitan distribution. Species: *''Sagitella bobretzkii'' *''Sagitella kowalewskii ''Sagitella'' is a genus of annelids belonging to the family Typhloscolecidae. The genus has almost cosmopolitan distribution. Species: *''Sagitella bobretzkii ''Sagitella'' is a genus of annelids belonging to the family Typhloscolecidae. ...'' *'' Sagitella praecox'' References {{Taxonbar, from=Q3903886 Annelids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
