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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 The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialist ... includes the following genera in the group: * '' Callinera'' Bergendal, 1900 * '' Carinesta'' Punnett, 1900 * '' Carinina' ... [...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] |
Carinina
''Carinina'' is a genus of nemerteans belonging to the family 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 '' Ca .... The species of this genus are found in Europe and Northern America. Species: *'' Carinina antarctica'' *'' Carinina arenaria'' *'' Carinina atavia'' References Palaeonemertea Nemertea genera {{nemertean-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tubulanus Polymorphus
''Tubulanus polymorphus'' is a species of ribbon worm in the phylum Nemertea. It is found in the northern Atlantic Ocean and the northern Pacific Ocean. It occurs on the lower shore down to about , on sand or gravel, under stones and among seaweed. Description Like other ribbon worms, ''T. polymorphus'' is not divided into segments but is soft, smooth and contractile. It is up to long but just wide, with a rounded head slightly broader than the body. There is a proboscis pore and a mouth on the underside of the head but there are no eye-spots or cephalic slits. Fresh specimens are a dark reddish-brown or orangeish-brown. Specimens preserved in alcohol lose their colour but exhibit a transverse dark band. This has a clear cut anterior margin but a posterior margin that fades gradually. A pair of sensory organs is located at the sides near the posterior margin of this band. This worm can be distinguished from other similar species by the absence of whitish bands or stripes on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nemertea
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 rin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callinera
''Callinera'' is a genus of worm Worms are many different distantly related bilateral animals that typically have a long cylindrical tube-like body, no limbs, and no eyes (though not always). Worms vary in size from microscopic to over in length for marine polychaete wor ...s belonging to the family Callineridae. The species of this genus are found in Europe. Species: *'' Callinera bergendali'' *'' Callinera blanchardi'' *'' Callinera buergeri'' *'' Callinera emiliae'' *'' Callinera grandis'' *'' Callinera monensis'' *'' Callinera nishikawai'' *'' Callinera quatrefagesi'' *'' Callinera zhirmunskyi'' References {{Taxonbar, from=Q3826157 Nemerteans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Register Of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as the ''World List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoologischer Anzeiger
''Zoologischer Anzeiger – A Journal of Comparative Zoology'' is a peer-reviewed scientific journal specialising in the field of comparative zoology. It is included in a number of bibliographic databases: * Animal Breeding Abstracts * Bio-Control News and Information *Biological Abstracts *BIOSIS * CAB Abstracts *Cambridge Scientific Abstracts *Chemical Abstracts * Current Advances in Ecological and Environmental Sciences * Current Contents, Agriculture, Biology & Environmental Sciences * Ecological Abstracts *Elsevier BIOBASE / Current Awareness in Biological Sciences *Elsevier GEO Abstracts * Fisheries Review *Geo Abstracts *GEOBASE * Helminthological Abstracts * Index Veterinarius *NISC - National Information Services Corporation *Oceanographic Literature Review *Referativnyi Zhurnal *Research Alert *Science Citation Index * SciExpanded * SciSearch *Scopus Scopus is Elsevier's abstract and citation database launched in 2004. Scopus covers nearly 36,377 titles (22,794 ac ... [...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 list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialist ... 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) * '' Tubul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
