Cephalothrix

	Cephalothrix ''Cephalothrix'' is a genus of nemerteans belonging to the family Cephalothricidae. The genus has 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 Species: '' Cephalothrix adriatica'' '' Cephalothrix alba'' '' Cephalothrix aliena'' References Palaeonemertea Nemertea genera {{nemertean-stub ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Cephalothrix Adriatica ''Cephalothrix'' is a genus of nemerteans belonging to the family Cephalothricidae. The genus has 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 Species: '' Cephalothrix adriatica'' '' Cephalothrix alba'' '' Cephalothrix aliena'' References Palaeonemertea Nemertea genera {{nemertean-stub ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Cephalothrix Alba ''Cephalothrix'' is a genus of nemerteans belonging to the family Cephalothricidae. The genus has cosmopolitan distribution. Species Species: ''Cephalothrix adriatica ''Cephalothrix'' is a genus of nemerteans belonging to the family Cephalothricidae. The genus has cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of ...'' '' Cephalothrix alba'' '' Cephalothrix aliena'' References Palaeonemertea Nemertea genera {{nemertean-stub ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Cephalothrix Aliena ''Cephalothrix'' is a genus of nemerteans belonging to the family Cephalothricidae. The genus has cosmopolitan distribution. Species Species: ''Cephalothrix adriatica'' ''Cephalothrix alba ''Cephalothrix'' is a genus of nemerteans belonging to the family Cephalothricidae. The genus has cosmopolitan distribution. Species Species: ''Cephalothrix adriatica ''Cephalothrix'' is a genus of nemerteans belonging to the family Ce ...'' '' Cephalothrix aliena'' References Palaeonemertea Nemertea genera {{nemertean-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Palaeonemertea Palaeonemertea is a class of primitive nemertean worm. It may be para- or polyphyletic, consisting of three to five clades and totalling about 100 species. These worms have several apparently simple features and, as their name suggests, they are often considered to be the most primitive nemerteans. The primary body-wall musculature consists of an outer circular layer overlying a longitudinal layer. The group includes genera such as '' Cephalothrix'' in which the nerve cords are inside the body-wall longitudinal muscle, and ''Tubulanus ''Tubulanus'' is a genus of primitive nemertean worms in the order Palaeonemertea. Species The World Register of Marine Species includes the following species in the genus: * '' Tubulanus albocinctus'' (Coe, 1904) * '' Tubulanus annulatus'' (Mo ...'', in which the nerve cords are between the outer circular muscle and the epidermis. Tubulanids are commonly encountered in rocky areas of intertidal zones in the northern hemisphere. They are often ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Cephalothricidae Cephalothricidae is a family of worms belonging to the order Palaeonemertea. Genera: * '' Astemma'' Örsted, 1843 * '' Balionemertes'' Sundberg, Gibson & Olsson, 2003 * ''Cephalothrix ''Cephalothrix'' is a genus of nemerteans belonging to the family Cephalothricidae. The genus has cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of ...'' Örsted, 1843 References Palaeonemertea Nemertea families {{nemertean-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Nemerteans Nemertea is a phylum of animals also known as ribbon worms or proboscis worms, consisting of 1300 known species. Most ribbon worms are very slim, usually only a few millimeters wide, although a few have relatively short but wide bodies. Many have patterns of yellow, orange, red and green coloration. The foregut, stomach and intestine run a little below the midline of the body, the anus is at the tip of the tail, and the mouth is under the front. A little above the gut is the rhynchocoel, a cavity which mostly runs above the midline and ends a little short of the rear of the body. All species have a proboscis which lies in the rhynchocoel when inactive but everts to emerge just above the mouth to capture the animal's prey with venom. A highly extensible muscle in the back of the rhynchocoel pulls the proboscis in when an attack ends. A few species with stubby bodies filter feed and have suckers at the front and back ends, with which they attach to a host. The brain is a ring ... [...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]