Ascidiella

	Ascidiella ''Ascidiella'' is a genus of tunicates belonging to the family Ascidiidae. The genus has almost cosmopolitan distribution. Species: ''Ascidiella aspersa'' ''Ascidiella scabra'' ''Ascidiella senegalensis ''Ascidiella'' is a genus of tunicates belonging to the family Ascidiidae. The genus has almost cosmopolitan distribution. Species: ''Ascidiella aspersa'' ''Ascidiella scabra ''Ascidiella'' is a genus of tunicates belonging to the family A ...'' References {{Taxonbar, from=Q3624862 Enterogona Tunicate genera ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Ascidiella Aspersa ''Ascidiella aspersa'' (European sea squirt) is a species of solitary sea squirts native to the northeastern Atlantic, from the Mediterranean Sea to Norway. They possess oval bodies up to in length. Their branchial (or oral) siphons are conical and positioned at the top of the body. They possess six to eight lobes. The atrial siphons are located at the upper third of the side of the body and possess six lobes. The body is covered by a firm transparent test that is greyish to brown in color. The test often snag detritus that remain loosely attached to the animal. When expanded, at most 40 tentacles can be observed on the inside surface of the branchial wall. Both the openings of the branchial and atrial siphons possess lighter colored ridges on their rims. They may also be frilled at times. ''A. aspersa'' are attached to the substrates by the left side of their bodies. They can be found in dense groups of unfused individuals on hard surfaces like rocks. at depths of up to . ''A. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Ascidiella Scabra ''Ascidiella'' is a genus of tunicates belonging to the family Ascidiidae. The genus has almost cosmopolitan distribution. Species: ''Ascidiella aspersa'' ''Ascidiella scabra'' ''Ascidiella senegalensis ''Ascidiella'' is a genus of tunicates belonging to the family Ascidiidae. The genus has almost cosmopolitan distribution. Species: ''Ascidiella aspersa'' ''Ascidiella scabra ''Ascidiella'' is a genus of tunicates belonging to the family A ...'' References {{Taxonbar, from=Q3624862 Enterogona Tunicate genera ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Ascidiella Senegalensis ''Ascidiella'' is a genus of tunicates belonging to the family Ascidiidae. The genus has almost cosmopolitan distribution. Species: ''Ascidiella aspersa'' ''Ascidiella scabra'' ''Ascidiella senegalensis ''Ascidiella'' is a genus of tunicates belonging to the family Ascidiidae. The genus has almost cosmopolitan distribution. Species: ''Ascidiella aspersa'' ''Ascidiella scabra ''Ascidiella'' is a genus of tunicates belonging to the family A ...'' References {{Taxonbar, from=Q3624862 Enterogona Tunicate genera ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Ascidiidae Ascidiidae ("same-sac family") is a family of tunicates in the class Ascidiacea. Some species contain elevated amounts of vanadium. There are 4 genera: * ''Ascidia'' * ''Ascidiella'' * ''Phallusia'' * '' Psammascidia'' See also * Vanabins Vanabins (also known as vanadium-associated proteins or vanadium chromagen) are a group of vanadium-binding proteins. metalloproteins. Vanabins are found almost exclusively in the blood cells, or vanadocytes, of some tunicates (sea squirts), inclu ... References * Enterogona Tunicate families {{tunicata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Tunicate 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 ... [...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]
picture info	Enterogona Ascidiacea, commonly known as the ascidians, tunicates (in part), and sea squirts (in part), is a polyphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. Ascidians are characterized by a tough outer "tunic" made of a polysaccharide. Ascidians are found all over the world, usually in shallow water with salinities over 2.5%. While members of the Thaliacea and Larvacea (Appendicularia) swim freely like plankton, sea squirts are sessile animals after their larval phase: they then remain firmly attached to their substratum, such as rocks and shells. There are 2,300 species of ascidians and three main types: solitary ascidians, social ascidians that form clumped communities by attaching at their bases, and compound ascidians that consist of many small individuals (each individual is called a zooid) forming colonies up to several meters in diameter. Sea squirts feed by taking in water through a tube, the oral siphon. The water enters the mout ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]