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Sipunculans
The Sipuncula or Sipunculida (common names sipunculid worms or peanut worms) is a class containing about 162 species of unsegmented marine annelid worms. The name ''Sipuncula'' is from the genus name '' Sipunculus'', and comes from the Latin ''siphunculus'' meaning a "small tube". Sipuncula was once considered a phylum, 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, 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 crev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annelid
The annelids (Annelida , from Latin ', "little ring"), also known as the segmented worms, are a large phylum, with 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-groups of ... [...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 * Phascolionidae * Sipunculidae Rafinesque, 1814 * 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annelid
The annelids (Annelida , from Latin ', "little ring"), also known as the segmented worms, are a large phylum, with 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-groups of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sipunculus
''Sipunculus'' is a genus of worms belonging to the family Sipunculidae. The genus has cosmopolitan distribution. Species: *''Sipunculus angasoides'' *''Sipunculus clavatus'' *''Sipunculus corallicolus'' *''Sipunculus echinorhynchus'' *''Sipunculus gulfus'' *'' Sipunculus indicus'' *'' Sipunculus lomonossovi'' *'' Sipunculus longipapillosus'' *''Sipunculus macrorhynchus'' *''Sipunculus marcusi'' *''Sipunculus microrhynchus'' *''Sipunculus mundanus'' *''Sipunculus norvegicus'' *''Sipunculus nudus'' *''Sipunculus phalloides'' *''Sipunculus polymyotus'' *'' Sipunculus robustus'' *''Sipunculus rubens'' *''Sipunculus rufofimbriatus'' *''Sipunculus saccatus'' *''Sipunculus thailandicus'' *''Sipunculus zenkevitchi ''Sipunculus'' is a genus of worms belonging to the family Sipunculidae. The genus has cosmopolitan distribution. Species: *''Sipunculus angasoides'' *''Sipunculus clavatus'' *''Sipunculus corallicolus'' *''Sipunculus echinorhynchus'' *' ... ... [...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 & Ørsted, 1858) * '' Themiste blanda'' (Selenka and de Man, 1883) * ''Themiste cymodoceae ''Themiste cymodoceae'' is a species of unsegmented benthic marine worm in the phylum Sipuncula, the peanut worms. It is native to shallow waters around Australia and in the South China Sea where it lives in a cavity it creates among seagras ...'' (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 varios ... [...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 phalloid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phascolionidae
''Phascolionidae'' is a family of peanut worms. Species ''Onchnesoma'' * ''Onchnesoma intermedium'' Murina 1976 * ''Onchnesoma magnibathum'' Cutler 1969 * ''Onchnesoma squamatum'' (Koren and Danielssen, 1875) * ''Onchnesoma steenstrupii ''Onchnesoma'' is one of the two genera that constitute the family 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 ...'' 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, 1895 * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sipunculus Nudus
''Sipunculus nudus'' is a cosmopolitan species of unsegmented marine worm of the phylum 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. Distribution ''Sipunculus nudus'' is commonly found on subtidal zones of sandy shores to seabeds deep in temperate or tropical waters worldwide. The worm hides in sa ... [...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, 1 ... [...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 ''Phascolionidae'' is a family of peanut worms. Species ''Onchnesoma'' * ''Onchnesoma intermedium'' Murina 1976 * ''Onchnesoma magnibathum'' Cutler 1969 * ''Onchnesoma squamatum'' (Koren and Danielssen, 1875) * ''Onchnes ... [...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 class Phascolosomatidea. Species ''Antillesoma'' * ''Antillesoma antillarum'' (Grübe & Oersted, 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 granulatum ''Phascolosoma granulatum'' is a species of peanut worm in the family Phascolosomatidae. It is found in shallow water in the northeastern Atlantic Ocean and the Mediterranean Sea. Description ''P. granulatum'' is a moderately large peanut worm g ...'' (Leuckart, ... [...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 i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
