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Dugesiidae
Dugesiidae is a family of freshwater planarians distributed worldwide (except Antarctica). The type genus is ''Dugesia'' Girard, 1850.Ball, I. R.: A contribution to the phylogeny and biogeography of the freshwater triclads (Platyhelminthes: Turbellaria). Biology of the Turbellaria (Edited by: Riser NW and Morse MP). New York: McGraw-Hill New York 1974, 339-401. Description All species of Dugesiidae live in freshwater environments and have a dorsoventrally flattened body. The head usually has a somewhat triangular shape and has two eyes (except for some subterranean eyeless species). The main differences between Dugesiidae and other freshwater planarians are related to the anatomy of the eyes and the copulatory apparatus. The eye cup in Dugesiidae is composed of several retinal cells, while in other freshwater planarians they are composed of a single cell. All freshwater planarians have an accessory organ called copulatory bursa or ''bursa copulatrix'', which is connected to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dugesiidae
Dugesiidae is a family of freshwater planarians distributed worldwide (except Antarctica). The type genus is ''Dugesia'' Girard, 1850.Ball, I. R.: A contribution to the phylogeny and biogeography of the freshwater triclads (Platyhelminthes: Turbellaria). Biology of the Turbellaria (Edited by: Riser NW and Morse MP). New York: McGraw-Hill New York 1974, 339-401. Description All species of Dugesiidae live in freshwater environments and have a dorsoventrally flattened body. The head usually has a somewhat triangular shape and has two eyes (except for some subterranean eyeless species). The main differences between Dugesiidae and other freshwater planarians are related to the anatomy of the eyes and the copulatory apparatus. The eye cup in Dugesiidae is composed of several retinal cells, while in other freshwater planarians they are composed of a single cell. All freshwater planarians have an accessory organ called copulatory bursa or ''bursa copulatrix'', which is connected to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dugesia
''Dugesia'' (pronounced, /duˈd͡ʒiʒ(i)ə/) is a genus of dugesiid triclads that contains some common representatives of the class Turbellaria. These common flatworms are found in freshwater habitats of Africa, Eurasia, and Australia. ''Dugesia'' is best known to non-specialists because of its regeneration capacities. ''Dugesia'' is the type genus of the family Dugesiidae. Description ''Dugesia'' species have an elongated body with a slightly triangle-shaped head. Usually they have grey, brown or black colors on the dorsal body surface, the ventral surface uses to be paler. These animals have a couple of eyes constituted by a multicellular pigmented cup with many retinal cells to detect the amount of light in the nearby environment. Sometimes they present supernumerary eyes. At the anterior part of the body, behind the eyes level, they have two of structures called auricles that give the triangle look to the 'head' and that allow them to detect the intensity of water current ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Girardia
''Girardia'' is a genus of freshwater planarians belonging to the family Dugesiidae. Distribution The genus ''Girardia'' is endemic to the Americas, from Argentina to Canada, although most species occur in South America. The only two species known to occur naturally in North America, ''Girardia tigrina'' and ''Girardia dorotocephala'', have been introduced in other continents and islands. Description Species of ''Girardia'' are very similar to species of other genera of Dugesiidae and few apomorphies that clearly define the genus are known. One of the few exclusive characteristics is the presence of pigment granules in the outer pharyngeal wall. Until 1991 ''Girardia'' was considered a subgenus of ''Dugesia'', then it was upgraded to the genus rank. However, some works continued to use the old genus for some ''Girardia'' species, mainly for '' Girardia dorotocephala'' and ''Girardia tigrina''. Species *'' Girardia anceps'' (Kenk, 1930) *'' Girardia anderlani'' (Kawakatsu & H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cura (genus)
''Cura'' is a genus of freshwater flatworm (triclad)s belonging to the family Dugesiidae. ''Cura'' was ranked as a subgenus of ''Dugesia'' until 1974, then it was elevated to the genus rank. Description Individuals of this genus have a low triangle-shaped head.Ball IR: A contribution to the phylogeny and biogeography of the freshwater triclads (Platyhelminthes: Turbellaria). Biology of the Turbellaria (Edited by: Riser NW & Morse MP). New York: McGraw-Hill New York 1974, pp.339-401. Distribution ''Cura'' species present a disjunct distribution. '' C. foremanii'' inhabits North America, while '' C. fortis'' is found in New Zealand,Sluys, R., Kawakatsu, M., 2001. Contribution to an inventory of the freshwater planarians of Australia and New Zealand (Platyhelminthes, Tricladida, Dugesiidae), with distribution maps of the species examined. Beaufortia/Bull Zool Mus Univ Amsterdam 51(10):163-198 and '' C. pinguis'' in Australia, New Zealand, and New Caledonia ) , anthem = "" , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neppia
''Neppia'' is a genus of dugesiid triclad that is found in South America, Subantarctic region, Africa, Tasmania and New Zealand. Until 1974 ''Neppia'' was considered a subgenus of ''Dugesia''.Ball, I. R. 1974. A new genus of freshwater triclad from Tasmania with reviews of the related genera ''Cura'' and ''Neppia'' (Turbellaria, Tricladida). Life Sci. Contr. R. Ont. Mus. No. 99:1-48. Phylogeny and taxonomy Phylogenetic tree including five dugesiid genera after Álvarez-Presas et al., 2008: Species *''Neppia evelinae'' (Marcus, 1955) *''Neppia falklandica'' (Westblad, 1952) *''Neppia jeanneli'' (Beauchamp, 1913) *''Neppia magnibursalis'' Sluys & Kawakatsu, 2001 *''Neppia montana'' (Nurse, 1950) *''Neppia paeta'' (Marcus, 1955) *''Neppia tinga'' (Marcus, 1955) *''Neppia wimbimba ''Neppia'' is a genus of dugesiid triclad that is found in South America, Subantarctic region, Africa, Tasmania and New Zealand. Until 1974 ''Neppia'' was considered a subgenus of ''Dugesia''.Ball, I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recurva
''Recurva'' is a genus of freshwater and free-living triclad platyhelminth that belongs to the Dugesiidae family. It contains two known species although, according to molecular evidences, there is probably a third one. Distribution Described species of ''Recurva'' are found on different Greek islands. ''R. postrema'' inhabits the island of Rhodes and ''R. conjuncta'' the island of Cephalonia. The third putative species is found on Paros Paros (; el, Πάρος; Venetian: ''Paro'') is a Greek island in the central Aegean Sea. One of the Cyclades island group, it lies to the west of Naxos, from which it is separated by a channel about wide. It lies approximately south-east of .... References {{Taxonbar, from=Q20909381 Dugesiidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geoplanoidea
Geoplanoidea is a superfamily of freshwater and land triclads that comprises the species of the Geoplanidae and the Dugesiidae families. Dugesiidae and Geoplanidae share a duplication of the cluster that codifies for the 18S ribosomal RNA 18S ribosomal RNA (abbreviated 18S rRNA) is a part of the ribosomal RNA. The S in 18S represents Svedberg units. 18S rRNA is an SSU rRNA, a component of the eukaryotic ribosomal small subunit ( 40S). 18S rRNA is the structural RNA for the small .... Phylogeny Phylogenetic supertree after Sluys et al., 2009: References External links {{Taxonbar, from=Q5535582 Continenticola Animal superfamilies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geoplanidae
Geoplanidae is a family of flatworms known commonly as land planarians or land flatworms. These flatworms are mainly predators of other invertebrates, which they hunt, attack and capture using physical force and the adhesive and digestive properties of their mucus. They lack water-retaining mechanisms and are therefore very sensitive to humidity variations of their environment. Because of their strict ecological requirements, some species have been proposed as indicators of the conservation state of their habitats. They are generally animals with low vagility (dispersal ability) and with very specific habitat requirements, so they can be also used to accurately determine the distribution of biogeographic realms. Today the fauna of these animals is being studied to select conservation priorities in the Atlantic rainforest in Brazil. At the other extreme, one species in this family, ''Platydemus manokwari'' has become an invasive species in both disturbed and wild habitats in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geoplanidae
Geoplanidae is a family of flatworms known commonly as land planarians or land flatworms. These flatworms are mainly predators of other invertebrates, which they hunt, attack and capture using physical force and the adhesive and digestive properties of their mucus. They lack water-retaining mechanisms and are therefore very sensitive to humidity variations of their environment. Because of their strict ecological requirements, some species have been proposed as indicators of the conservation state of their habitats. They are generally animals with low vagility (dispersal ability) and with very specific habitat requirements, so they can be also used to accurately determine the distribution of biogeographic realms. Today the fauna of these animals is being studied to select conservation priorities in the Atlantic rainforest in Brazil. At the other extreme, one species in this family, ''Platydemus manokwari'' has become an invasive species in both disturbed and wild habitats in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continenticola
Continenticola is a clade that includes the land planarians (Geoplanidae) and the freshwater triclads (Dendrocoelidae, Dugesiidae, Kenkiidae and Planariidae). Phylogeny On the basis of molecular evidences, Carranza and colleagues suggested in 1998 that the families of freshwater and land flatworms must be grouped together in a monophyletic group that they coined Continenticola. This grouping was accepted by Ronald Sluys in 2009. Despite the molecular evidences, there are no morphological apomorphies In phylogenetics, an apomorphy (or derived trait) is a novel character or character state that has evolved from its ancestral form (or plesiomorphy). A synapomorphy is an apomorphy shared by two or more taxa and is therefore hypothesized to have ... supporting this clade. Phylogenetic supertree after Sluys et al., 2009: References {{Taxonbar, from=Q5165347 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romankenkius
''Romankenkius'' is a genus of freshwater planarian in the family Dugesiidae. Species The following species are recognised in the genus ''Romankenkius'':*Tyler S, Schilling S, Hooge M, and Bush LF (comp.) (2006-2012) Turbellarian taxonomic database. Version 1.7 'Database *'' Romankenkius bilineatus'' Ball & Tran, 1979 *'' Romankenkius conspectus'' Sluys & Grant, 2006 *'' Romankenkius flaccidus'' Sluys, 2018 *'' Romankenkius glandulosus'' Kenk, 1930 *'' Romankenkius hoernesi'' Weiss, 1909 *'' Romankenkius impudicus'' Sluys & Grant, 2006 *'' Romankenkius kenki'' Ball, 1974 *'' Romankenkius libidinosus'' Sluys & Rohdes, 1991 *'' Romankenkius patagonicus'' (Borelli, 1901) *''Romankenkius pedderensis The Lake Pedder planarian (''Romankenkius pedderensis'') is a species of invertebrate in the family Dugesiidae.Sluys, R., Kawakatsu, M., Riutort, M. & Baguñà, J. 2009. "A new higher classification of planarian flatworms (Platyhelminthes, Tric ...'' Ball, 1974 (Lake Pedder planarian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schmidtea
''Schmidtea'' is a genus of freshwater triclads. Species of the genus ''Schmidtea'' are widely used in regeneration and developmental studies. Until 1991 ''Schmidtea'' was considered as a subgenus of ''Dugesia ''Dugesia'' (pronounced, /duˈd͡ʒiʒ(i)ə/) is a genus of dugesiid triclads that contains some common representatives of the class Turbellaria. These common flatworms are found in freshwater habitats of Africa, Eurasia, and Australia. ''Dugesi ...'', then it was elevated to the genus rank. Phylogeny Phylogenetic tree including five dugesiid genera after Álvarez-Presas et al., 2008: References Dugesiidae {{flatworm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
