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Pegea Bicaudata
''Pegea'' is a genus of tunicates belonging to the family Salpidae. The genus has almost cosmopolitan distribution. Species: *''Pegea bicaudata'' *''Pegea confoederata'' *''Pegea socia ''Pegea'' is a genus of tunicates belonging to the family Salpidae. The genus has almost cosmopolitan distribution. Species: *''Pegea bicaudata'' *''Pegea confoederata'' *''Pegea socia ''Pegea'' is a genus of tunicates belonging to the fam ...'' References {{Taxonbar, from=Q4925713 Tunicates ...
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Tunicates
A tunicate is a marine invertebrate animal, a member of the subphylum Tunicata (). It is part of the Chordata, a phylum which includes all animals with dorsal nerve cords and notochords (including vertebrates). The subphylum was at one time called Urochordata, and the term urochordates is still sometimes used for these animals. They are the only chordates that have lost their myomeric segmentation, with the possible exception of the 'seriation of the gill slits'. Some tunicates live as solitary individuals, but others replicate by budding and become colonies, each unit being known as a zooid. They are marine filter feeders with a water-filled, sac-like body structure and two tubular openings, known as siphons, through which they draw in and expel water. During their respiration and feeding, they take in water through the incurrent (or inhalant) siphon and expel the filtered water through the excurrent (or exhalant) siphon. Most adult tunicates are sessile, immobile and perman ...
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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 ...
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Pegea Bicaudata
''Pegea'' is a genus of tunicates belonging to the family Salpidae. The genus has almost cosmopolitan distribution. Species: *''Pegea bicaudata'' *''Pegea confoederata'' *''Pegea socia ''Pegea'' is a genus of tunicates belonging to the family Salpidae. The genus has almost cosmopolitan distribution. Species: *''Pegea bicaudata'' *''Pegea confoederata'' *''Pegea socia ''Pegea'' is a genus of tunicates belonging to the fam ...'' References {{Taxonbar, from=Q4925713 Tunicates ...
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Pegea Confoederata
''Pegea'' is a genus of tunicates belonging to the family Salpidae. The genus has almost cosmopolitan distribution. Species: *''Pegea bicaudata'' *''Pegea confoederata'' *''Pegea socia ''Pegea'' is a genus of tunicates belonging to the family Salpidae. The genus has almost cosmopolitan distribution. Species: *''Pegea bicaudata'' *''Pegea confoederata'' *''Pegea socia ''Pegea'' is a genus of tunicates belonging to the fam ...'' References {{Taxonbar, from=Q4925713 Tunicates ...
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Pegea Socia
''Pegea'' is a genus of tunicates belonging to the family Salpidae. The genus has almost cosmopolitan distribution. Species: *''Pegea bicaudata'' *''Pegea confoederata'' *''Pegea socia ''Pegea'' is a genus of tunicates belonging to the family Salpidae. The genus has almost cosmopolitan distribution. Species: *''Pegea bicaudata'' *''Pegea confoederata ''Pegea'' is a genus of tunicates belonging to the family Salpidae. T ...'' References {{Taxonbar, from=Q4925713 Tunicates ...
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