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Sipunculans
The Sipuncula or Sipunculida (common names sipunculid worms or peanut worms) is a class containing about 162 species of sea, marine Annelid, annelid worms, that have secondarily lost their segmentation. Sipuncula was once considered a phylum of unsegmented worms, but was demoted to a class of Annelida, based on recent molecular work. Sipunculans vary in size but most species are under in length. The body is divided into an unsegmented, bulbous trunk and a narrower, Anatomical terms of location#Anterior and posterior, anterior section, called the "introvert", which can be retracted into the trunk. The mouth is at the tip of the introvert and is surrounded in most groups by a ring of short tentacles. With no hard parts, the body is flexible and mobile. Although found in a range of habitats throughout the world's oceans, the majority of species live in shallow water habitats, burrowing under the surface of sandy and muddy substrates. Others live under stones, in rock crevices or i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Golfingiidae
Golfingiidae is a family of peanut worms. Species ''Golfingia'' * ''Golfingia anderssoni'' (Théel, 1911) * ''Golfingia birsteini'' Murina 1973 * ''Golfingia capensis'' (Teuscher, 1874) * ''Golfingia elongata'' (Keferstein, 1862) * ''Golfingia iniqua'' (Sluiter, 1912) * ''Golfingia margaritacea'' (Sars, 1851) * ''Golfingia mirabilis'' Murina 1969 * ''Golfingia muricaudata'' (Southern, 1913) * ''Golfingia pectinatoides'' Cutler and Cutler, 1979 * ''Golfingia vulgaris'' (de Blainville, 1827) ''Nephasoma'' * ''Nephasoma abyssorum'' (Koren and Danielssen, 1875) * ''Nephasoma bulbosum'' (Southern, 1913) * ''Nephasoma capilleforme'' (Murina, 1973) * ''Nephasoma confusum'' (Sluiter, 1902) * ''Nephasoma constricticervix'' (Cutler, 1969) * ''Nephasoma constrictum'' (Southern, 1913) * ''Nephasoma cutleri'' (Murina, 1975) * ''Nephasoma diaphanes'' (Gerould, 1913) * ''Nephasoma eremita'' (Sars, 1851) * ''Nephasoma filiforme'' (Sluiter, 1902) * ''Nephasoma flagriferum'' (Selenka, 1885) * ''Ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annelid
The annelids (), also known as the segmented worms, are animals that comprise the phylum Annelida (; ). The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecologies – some in marine environments as distinct as tidal zones and hydrothermal vents, others in fresh water, and yet others in moist terrestrial environments. The annelids are bilaterally symmetrical, triploblastic, coelomate, invertebrate organisms. They also have parapodia for locomotion. Most textbooks still use the traditional division into polychaetes (almost all marine), oligochaetes (which include earthworms) and leech-like species. Cladistic research since 1997 has radically changed this scheme, viewing leeches as a sub-group of oligochaetes and oligochaetes as a sub-group of polychaetes. In addition, the Pogonophora, Echiura and Sipuncula, previously regarded as separate phyla, are now regarded as sub-grou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sipunculus Nudus
''Sipunculus nudus'' is a cosmopolitan species of unsegmented marine worm of the class Sipuncula, also known as peanut worms. Description As in all peanut worms, the body of ''S. nudus'' consists of a sac-like portion called the trunk and an eversible proboscis called the introvert. The mouth is located at the anterior end of the introvert and is surrounded by a group of tentacles. The body of the adult worm is around in length but can reach up to in some cases, of which about to correspond to the introvert. The epidermis contains a series of longitudinal coelomic canals that are connected to the main coelomic cavity by pores. Below the epidermis there are circular muscles surrounding the body which, as the coelomic canals, are marked on the surface, making the animal's surface be marked by rectangular ridges. File:Sipunculus nudus P5033280.jpg, ''Sipunculus nudus'' in Pula, Croatia. File:Sipunculus nudus DSC_0565.jpg, ''Sipunculus nudus'' (front end) in Pula, Croatia. File: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phascolosomatidea
Phascolosomatidea is a subclass of the class Sipuncula The Sipuncula or Sipunculida (common names sipunculid worms or peanut worms) is a class containing about 162 species of marine annelid worms, that have secondarily lost their segmentation. Sipuncula was once considered a phylum of unsegmented ..., the peanut worms, containing two orders:- * Aspidosiphonida containing the single family Aspidosiphonidae * Phascolosomatida containing the single family Phascolosomatidae Their hooks are arranged in regular rings. References Sipunculans Protostome classes {{Annelid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspidosiphonidae
Aspidosiphonidae is a family of peanut worms. It is the only family in the monotypic order Aspidosiphonida, which is in the class Phascolosomatidea.Gibbs, P.E. (1977): British sipunculans. Academic Press. London. 35p. Ditadi, A.S.F. & Migotto, A.E. (1982): O Filo Sipuncula. Concelho Nacional de Desemvolvimento Cientifico e Tecnologico CNPq Brasilia. 43p.Cutler, Edward B. & Gibbs, Peter E. (1985): A Phylogenetic analysis of higher taxa in the Phylum Sipuncula. Systematic Zoology 34(2):162-173.Cutler, Edward B. & Cutler, Norma J (1989): A revision of the genus Aspidosiphon (Sipuncula: Aspidosiphonidaea). Proceedings of Biological Society of Washington 102(4):826-86Bistor/ref>Cutler, Edward B. (1994): The Sipuncula: their systematic, biology and evolution. 406pGoogle Books/ref> Description The family Aspidosiphonidae is characterized by an oval disk with short tentacles, arranged in a crescent-shape made of an enclosed nuchal organ. It has a canal of sacs in the coelom, lying in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phascolosomatidae
Phascolosomatidae is a family of peanut worms. It is the only family in the order Phascolosomatida, which is in the only order in the subclass Phascolosomatidea. Genera ''Antillesoma'' * ''Antillesoma antillarum'' (Grübe & Oersted The oersted (, symbol Oe) is the coherent derived unit of the Magnetic field#The H-field, auxiliary magnetic field H in the CGS-EMU and Gaussian units, Gaussian systems of units. It is equivalent to 1 dyne per maxwell (unit), maxwell. Differen ..., 1858) ''Apionsoma'' * '' Apionsoma capitata'' (Gerould, 1913) * '' Apionsoma misakianum'' (Ikeda, 1904) * '' Apionsoma murinae'' (Cutler, 1969) * '' Apionsoma pectinatum'' (Keferstein, 1867) * '' Apionsoma trichocephala'' Sluiter, 1902 ''Phascolosoma'' * '' Phascolosoma agassizii'' (Keferstein, 1866) * '' Phascolosoma albolineatum'' (Baird, 1868) * '' Phascolosoma annulatum'' (Hutton, 1879) * '' Phascolosoma arcuatum'' (Gray, 1828) * '' Phascolosoma glabrum'' (Sluiter, 1902) * '' Phascolosoma granulat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sipunculidea
Golfingiida, also known as the Golfingiiformes, is an order of peanut worms.Gibbs, P.E. (1977): ''British sipunculans''. Academic Press. London. 35p. Ditadi, A.S.F. & Migotto, A.E. (1982): ''O Filo Sipuncula''. Concelho Nacional de Desemvolvimento Cientifico e Tecnologico CNPq Brasilia. 43p.Cutler, Edward B. (1994): ''The Sipuncula: their systematic, biology and evolution''. Cornell University Press. 406p The tentacles form a circle around the mouth, while those of the sister taxon, Phascolosomatidea, are only found above the mouth. Most species burrow in the substrate but some live in the empty shells of gastropods. It is an order of the class Sipuncula (previously considered a phylum), and contains the following families: * Golfingiidae * Phascolionidae *Sipunculidae Sipunculidae is a family of peanut worms. Species ''Phascolopsis'' * '' Phascolopsis gouldii'' (De Pourtalés, 1851) ''Siphonomecus'' * '' Siphonomecus multicinctus'' Fisher 1947 ''Siphonosoma'' * '' Sipho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Golfingiida
Golfingiida, also known as the Golfingiiformes, is an order of peanut worms.Gibbs, P.E. (1977): ''British sipunculans''. Academic Press. London. 35p. Ditadi, A.S.F. & Migotto, A.E. (1982): ''O Filo Sipuncula''. Concelho Nacional de Desemvolvimento Cientifico e Tecnologico CNPq Brasilia. 43p.Cutler, Edward B. (1994): ''The Sipuncula: their systematic, biology and evolution''. Cornell University Press. 406p The tentacles form a circle around the mouth, while those of the sister taxon, Phascolosomatidea, are only found above the mouth. Most species burrow in the substrate but some live in the empty shells of gastropods. It is an order of the class Sipuncula (previously considered a phylum), and contains the following families: * Golfingiidae Golfingiidae is a family of peanut worms. Species ''Golfingia'' * ''Golfingia anderssoni'' (Théel, 1911) * ''Golfingia birsteini'' Murina 1973 * ''Golfingia capensis'' (Teuscher, 1874) * ''Golfingia elongata'' (Keferstein, 1862) * ''Gol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sipunculus
''Sipunculus'' is a genus of worms belonging to the family Sipunculidae. Taxonomy is a variant spelling of the Latin ("little tube"), a diminutive of from Greek (''síphōn'', "tube, pipe"). was used for fossilized worm-shaped organisms like by the Welsh naturalist Edward Lhuyd in 1699. In the next century, the Swedish naturalist Carl Linnaeus used the scientific name for a species of worms in his 1766 . In 1814, the French zoologist Constantine Samuel Rafinesque used the feminine form to distinguish the family including ; this was later elevated to the class, the family being renamed and the species reorganized into different genera. Distribution The genus has cosmopolitan distribution. Species Species included in Sipunculus are: *'' Sipunculus angasoides'' *'' Sipunculus clavatus'' *'' Sipunculus corallicolus'' *'' Sipunculus echinorhynchus'' *'' Sipunculus gulfus'' *'' Sipunculus indicus'' *'' Sipunculus lomonossovi'' *'' Sipunculus longipapillosus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phascolionidae
''Phascolionidae'' is a family of peanut worms The Sipuncula or Sipunculida (common names sipunculid worms or peanut worms) is a class containing about 162 species of marine annelid worms, that have secondarily lost their segmentation. Sipuncula was once considered a phylum of unsegmented .... Species '' Onchnesoma'' * '' Onchnesoma intermedium'' Murina 1976 * '' Onchnesoma magnibathum'' Cutler 1969 * '' Onchnesoma squamatum'' (Koren and Danielssen, 1875) * '' Onchnesoma steenstrupii'' Koren & Danielssen 1875 '' Phascolion'' * '' Phascolion abnorme'' Fischer 1895 * '' Phascolion bogorovi'' Murina 1973 * '' Phascolion caupo'' Hendrix 1975 * '' Phascolion cirratum'' Murina, 1968 * '' Phascolion collare'' Selenka and de Man, 1883 * '' Phascolion convestitum'' Sluiter, 1902 * '' Phascolion cryptum'' Hendrix, 1975 * '' Phascolion gerardi'' Rice, 1993 * '' Phascolion hedraeum'' Selenka and de Man, 1883 * '' Phascolion hibridum'' Murina 1981 * '' Phascolion hupferi'' Fischer, 189 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sipunculidae
Sipunculidae is a family of peanut worms. Species ''Phascolopsis'' * '' Phascolopsis gouldii'' (De Pourtalés, 1851) ''Siphonomecus'' * '' Siphonomecus multicinctus'' Fisher 1947 ''Siphonosoma'' * '' Siphonosoma arcassonense'' (Cuenot, 1902) * '' Siphonosoma australe'' (Keferstein, 1865) * '' Siphonosoma boholense'' (Selenka, de Man & Bülow, 1883) * '' Siphonosoma cumanense'' (Keferstein, 1867) * '' Siphonosoma dayi'' Stephen 1942 * '' Siphonosoma funafuti'' (Shipley, 1898) * '' Siphonosoma ingens'' (Fisher, 1952) * '' Siphonosoma mourense'' Satô, 1930 * '' Siphonosoma rotumanum'' (Shipley, 1898) * '' Siphonosoma vastum'' (Selenka & Bülow, 1883) ''Sipunculus'' * '' Sipunculus indicus'' Peters, 1850 * '' Sipunculus lomonossovi'' Murina 1968 * '' Sipunculus longipapillosus'' Murina 1968 * '' Sipunculus marcusi'' Ditadi 1976 * '' Sipunculus mundanus'' Selenka and Bulow, 1883 * '' Sipunculus norvegicus'' Danielssen, 1869 * '' Sipunculus nudus'' Linnaeus, 1766 * '' Sipunculus pha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Themistidae
''Themiste'' is a genus of peanut worms. It is the only genus in the family Themistidae. Members of this family are filter feeders, and have their feeding tentacles arranged in an elaborate crown-like structure. This is in contrast to other sipunculans which are deposit feeders. Species The genus contains the following species: * '' Themiste alutacea'' (Grube Grube is a municipality in the district of Ostholstein, in Schleswig-Holstein, Germany. It is situated near the Baltic Sea coast, approx. 15 km south of Heiligenhafen, and 45 km northeast of Lübeck Lübeck (; or ; Latin: ), of ... & Ørsted, 1858) * '' Themiste blanda'' (Selenka and de Man, 1883) * '' Themiste cymodoceae'' (Edmonds, 1956) * '' Themiste dehamata'' (Kesteven, 1903) * '' Themiste dyscrita'' (Fisher, 1952) * '' Themiste hennahi'' (Gray, 1828) * '' Themiste lageniformis'' (Baird, 1868) * '' Themiste minor'' (Ikeda, 1904) * '' Themiste pyroides'' (Chamberlain, 1920) * '' Themiste vario ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
