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Dalyellia Alba
''Dalyellia'' is a genus of rhabdocoel flatworms belonging to the family Dalyelliidae Dalyelliidae is a family of flatworms belonging to the order Rhabdocoela Rhabdocoela is an order of flatworms in the class Rhabditophora with about 1700 species described worldwide. The order was first described in 1831 by Christian Gottfried .... The species of this genus are found in Europe, Southern Africa and Northern America. Species: * '' Dalyellia alba'' Higley, 1918 * '' Dalyellia callvucurai'' Damborenea, Brusa & Noreña, 2007 * '' Dalyellia viridis'' (Shaw, 1791) References {{Authority control Rhabdocoela Platyhelminthes genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhabdocoela
Rhabdocoela is an order of flatworms in the class Rhabditophora with about 1700 species described worldwide. The order was first described in 1831 by Christian Gottfried Ehrenberg. Most of rhabdocoels are free-living organisms, but some live symbiotically with other animals. Description Although Rhabdocoela is a highly supported group in molecular studies, there is no clear morphological synapomorphy that unites them. All rhabdocoels have a bulbous pharynx, but this is shared with other flatworm groups, such as Neodermata, Lecithoepitheliata and some species of Prolecithophora. Some possibly identified synapomorphies are found in the ultrastructure of the protonephridial system, but similar constructions exist in other groups. Another possible apomorphy is found in the ultrastructure of the sperm, which has a dense heel on the basal bodies during spermiogenesis, but some groups have lost this feature. Classification Rhabdocoels were traditionally classified in two groups, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flatworm
The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek πλατύ, ''platy'', meaning "flat" and ἕλμινς (root: ἑλμινθ-), ''helminth-'', meaning "worm") are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates. Unlike other bilaterians, they are acoelomates (having no body cavity), and have no specialized circulatory and respiratory organ (anatomy), organs, which restricts them to having flattened shapes that allow oxygen and nutrients to pass through their bodies by diffusion. The digestive cavity has only one opening for both ingestion (intake of nutrients) and egestion (removal of undigested wastes); as a result, the food cannot be processed continuously. In traditional medicinal texts, Platyhelminthes are divided into Turbellaria, which are mostly non-parasitic animals such as planarians, and three entirely parasitic groups: Cestoda, Trematoda and Monogenea; however, since the turbellarians have since been prove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalyelliidae
Dalyelliidae is a family of flatworms belonging to the order Rhabdocoela Rhabdocoela is an order of flatworms in the class Rhabditophora with about 1700 species described worldwide. The order was first described in 1831 by Christian Gottfried Ehrenberg. Most of rhabdocoels are free-living organisms, but some live symb .... Genera Genera: * ''Alexlutheria'' Karling, 1956 * ''Austrodalyellia'' Hochberg & Cannon, 2002 * ''Axiola'' Luther, 1955 * '' Castrella'' Fuhrmann, 1900 * '' Dalyellia'' Gieysztor, 1938 * '' Gieysztoria'' Ruebush & Hayes, 1939 * '' Microdalyellia'' Gieysztor, 1938 * ''Sergia'' Nasonov, 1923 References {{Authority control Rhabdocoela Platyhelminthes families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalyellia Alba
''Dalyellia'' is a genus of rhabdocoel flatworms belonging to the family Dalyelliidae Dalyelliidae is a family of flatworms belonging to the order Rhabdocoela Rhabdocoela is an order of flatworms in the class Rhabditophora with about 1700 species described worldwide. The order was first described in 1831 by Christian Gottfried .... The species of this genus are found in Europe, Southern Africa and Northern America. Species: * '' Dalyellia alba'' Higley, 1918 * '' Dalyellia callvucurai'' Damborenea, Brusa & Noreña, 2007 * '' Dalyellia viridis'' (Shaw, 1791) References {{Authority control Rhabdocoela Platyhelminthes genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalyellia Callvucurai
''Dalyellia'' is a genus of rhabdocoel flatworms belonging to the family Dalyelliidae. The species of this genus are found in Europe, Southern Africa and Northern America. Species: * ''Dalyellia alba ''Dalyellia'' is a genus of rhabdocoel flatworms belonging to the family Dalyelliidae Dalyelliidae is a family of flatworms belonging to the order Rhabdocoela Rhabdocoela is an order of flatworms in the class Rhabditophora with about 1700 ...'' Higley, 1918 * '' Dalyellia callvucurai'' Damborenea, Brusa & Noreña, 2007 * '' Dalyellia viridis'' (Shaw, 1791) References {{Authority control Rhabdocoela Platyhelminthes genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalyellia Viridis
''Dalyellia viridis'' is a species of rhabdocoel flatworm in the family Dalyelliidae. Description The animal is usually colored intensively green due to zoochlorellae. It is 2.5 to 4 mm long with a rounded anterior and pointed posterior end. It possesses a pair of kidney-shaped eyes. Mature animals carry many eggs in their body. Taxonomy It was described in 1791 by George Shaw as ''Hirudo viridis''. Distribution and habitat It occurs in freshwater in stagnant waterbodies. It is most frequently found in temporary pools. Ecology and behavior The animal harbors symbiotic green algae The green algae (singular: green alga) are a group consisting of the Prasinodermophyta and its unnamed sister which contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophytes) have emerged deep in the Charophyte alga as ... ( zoochlorellae) of the species '' Chlorella vulgaris'' in its body. It feeds on algae and animals, including microturbellarians. Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
