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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 nemertea Nemertea is a phylum of animals also known as ribbon worms or proboscis worms, consisting of about 1300 known species. Most ribbon worms are very slim, usually only a few millimeters wide, although a few have relatively short but wide bodies. ...ns. 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'', 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 oft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nemertean
Nemertea is a phylum of animals also known as ribbon worms or proboscis worms, consisting of about 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 , 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 wikt:eversion, 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 feeders, filter feed and have suckers at the front and back ends, with which they attach to a Hos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexei Viktorovich Chernyshev
Alexey ( ; ), is a Russian and Bulgarian male given name derived from the Greek ''Aléxios'' (), meaning "Defender", and thus of the same origin as the Latin Alexius. Similar Ukrainian and Belarusian names are romanized as Oleksii (Олексій) and Aliaksiej (Аляксей), respectively. The Russian Orthodox Church uses the Old Church Slavonic version, Alexiy or Aleksiy (Алексiй, or Алексий in modern spelling), for its Saints and hierarchs (most notably, this is the form used for Patriarchs Alexius I and Alexius II). The name became fairly popular in Russia after the baptism of Michael of Russia's son, Alexis of Russia. The common hypocoristic is Alyosha () or simply Lyosha (). These may be further transformed into Alyoshka, Alyoshenka, Lyoshka, Lyoha, Lyoshenka (, respectively), sometimes rendered as Alesha/Aleshenka in English. The form Alyosha may be used as a full first name in Bulgaria (Альоша) and Armenia. In theory, Alexia is the femal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carinomidae
Carinomidae is a family of worms belonging to the order 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 ar .... Genera: * '' Carinoma'' Oudemans, 1885 * '' Carinomella'' Coe, 1905 * '' Statolitonemertes'' Korotkevich, 1982 References Palaeonemertea Nemertea families {{nemertean-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalotrichidae
Cephalothricidae is a family of worms belonging to the order 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 ar .... Genera: * '' Astemma'' Örsted, 1843 * '' Balionemertes'' Sundberg, Gibson & Olsson, 2003 * '' Cephalothrix'' Örsted, 1843 References Palaeonemertea Nemertea families {{nemertean-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tubulanidae
Tubulanidae is a family of primitive nemertean worms in the order Palaeonemertea. Characteristics Worms in this family have slightly flattened, rounded heads and approximately cylindrical bodies. Apart from the genera, '' Callinera'' and '' Carinina'', worms in this family have paired cerebral sensory organs located on either side of the constriction where the head joins the body. Some species are red or brown, often with distinctive white bands or longitudinal stripes, but others are small and so translucent that their cerebral organs can be seen through the skin. Genera The World Register of Marine Species includes the following genera in the group: * '' Callinera'' Bergendal, 1900 * '' Carinesta'' Punnett, 1900 * '' Carinina'' Hubrecht, 1885 * '' Parahubrechtia'' Gibson & Sundberg, 1999 * '' Protubulanus'' Chernyshev, 1995 * ''Tubulanus ''Tubulanus'' is a genus of primitive nemertean worms in the order Palaeonemertea. Species The World Register of Marine Species The Wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tubulaniformes
''Tubulaniformes'' is an order of worms belonging to the class Palaeonemertea. Families: * Callineridae Bergendal, 1901 * Carinomellidae Chernyshev, 1995 * Tubulanidae Tubulanidae is a family of primitive nemertean worms in the order Palaeonemertea. Characteristics Worms in this family have slightly flattened, rounded heads and approximately cylindrical bodies. Apart from the genera, '' Callinera'' and '' Cari ... Bürger, 1905 References Nemerteans Spiralian orders {{Nemertean-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tubulanus
''Tubulanus'' is a genus of primitive nemertean worms in the order Palaeonemertea. Species The World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive catalogue and list of names of marine organisms. Content The content of the registry is edited and maintained by scien ... includes the following species in the genus: * '' Tubulanus albocinctus'' (Coe, 1904) * '' Tubulanus annulatus'' (Montagu, 1804) * '' Tubulanus aureus'' (Joubin, 1904) * '' Tubulanus borealis'' Friedrich, 1936 * '' Tubulanus capistratus'' (Coe, 1901) * '' Tubulanus cingulatus'' (Coe, 1904) * '' Tubulanus ezoensis'' Yamaoka, 1940 * '' Tubulanus floridanus'' Coe, 1951 * '' Tubulanus frenatus'' (Coe, 1904) * '' Tubulanus groenlandicus'' (Bergendal, 1902) * '' Tubulanus holorhynchocoelomicus'' Friedrich, 1958 * '' Tubulanus hylbomi'' Gibson & Sundberg, 1999 * '' Tubulanus linearis'' (McIntosh, 1874) * '' Tubu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
