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Leucochloridium Vogtianum
''Leucochloridium'' is a genus of parasitic trematode worms in the order Diplostomida. It Is the sole genus in the family Leucochloridiidae.Carus, C. G. (1835). Beobachtung über einen merkwürdigen schöngefärbten Eingeweidewurm, ''Leucochloridium paradoxum'' mihi, und dessen parasitische Erzeugung in einer Landschnecke, ''Succinea amphibia'' Drap. ''Helix putri''s Linn. ''Nova Acta Physico-Medica Academiae Caesareae Leopoldino Carolinae Naturae Curiosorum'' 17(7), 85–100. Members of this genus cause pulsating swellings in the eye-stalks of snails (a phenomenon colloquially called a ''zombie snail''), so as to attract the attention of predatory birds required in the parasites' lifecycle. Taxonomy Species Species in the genus ''Leucochloridium'' include: * '' Leucochloridium caryocatactis'' (Zeder, 1800) now in genus '' Urogonimus'' * '' Leucochloridium fuscostriatum'' Robinson, 1948 synonymised with ''L. variae'' * '' Leucochloridium holostomum'' (Rudolphi, 1819) * ''Leucoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucochloridium Paradoxum
''Leucochloridium paradoxum'', the green-banded broodsac, is a parasitic flatworm (or helminth). Its intermediate hosts are land snails, usually of the genus '' Succinea''. The pulsating, green broodsacs fill the eye stalks of the snail, thereby attracting predation by birds, the primary host. These broodsacs visually imitate caterpillars, a prey of birds. The adult parasite lives in the bird's cloaca, releasing its eggs into the faeces. Life cycle The species in ''Leucochloridium'' share a similar life cycle. They are parasites of snails and birds. This is a truncated life cycle compared with typical trematodes, because the snail acts as both the first and second intermediate host. File:Leucochloridium paradoxum sporocyst from Heckert 1889 plate1 fig1.png, Sporocyst. The stalk of the largest broodsac is drawn shortened. A metacercaria is passing along the lowest stalk. File:Leucochloridium paradoxum metacercaria from Heckert 1889 plate1 fig5.png, Mature metacercaria ready to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucochloridium Holostomum
''Leucochloridium'' is a genus of parasitic Trematoda, trematode worms in the order Diplostomida. It Is the sole genus in the family Leucochloridiidae.Carus, C. G. (1835). Beobachtung über einen merkwürdigen schöngefärbten Eingeweidewurm, ''Leucochloridium paradoxum'' mihi, und dessen parasitische Erzeugung in einer Landschnecke, ''Succinea amphibia'' Drap. ''Helix putri''s Linn. ''Nova Acta Physico-Medica Academiae Caesareae Leopoldino Carolinae Naturae Curiosorum'' 17(7), 85–100. Members of this genus cause pulsating swellings in the eye-stalks of Snail, snails (a phenomenon colloquially called a ''zombie snail''), so as to attract the attention of predatory birds required in the parasites' lifecycle. Taxonomy Species Species in the genus ''Leucochloridium'' include: * ''Leucochloridium caryocatactis'' (Zeder, 1800) now in genus ''Urogonimus'' * ''Leucochloridium fuscostriatum'' Robinson, 1948 synonymised with ''L. variae'' * ''Leucochloridium holostomum'' (Rudolphi, 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digenea Genera
Digenea (Gr. ''Dis'' – double, ''Genos'' – race) is a class of trematodes in the Platyhelminthes phylum, consisting of parasitic flatworms (known as ''flukes'') with a syncytial tegument and, usually, two suckers, one ventral and one oral. Adults commonly live within the digestive tract, but occur throughout the organ systems of all classes of vertebrates. Once thought to be related to the Monogenea, it is now recognised that they are closest to the Aspidogastrea and that the Monogenea are more closely allied with the Cestoda. Around 6,000 species have been described to date. Morphology Key features Characteristic features of the Digenea include a syncytial tegument; that is, a tegument where the junctions between cells are broken down and a single continuous cytoplasm surrounds the entire animal. A similar tegument is found in other members of the Neodermata; a group of platyhelminths comprising the Digenea, Aspidogastrea, Monogenea and Cestoda. Digeneans possess a ver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aggressive Mimicry
Aggressive mimicry is a form of mimicry in which predators, parasites, or parasitoids share similar signals, using a harmless model, allowing them to avoid being correctly identified by their prey or host. Zoologists have repeatedly compared this strategy to a wolf in sheep's clothing. In its broadest sense, aggressive mimicry could include various types of exploitation, as when an orchid exploits a male insect by mimicking a sexually receptive female (see pseudocopulation), but will here be restricted to forms of exploitation involving feeding. An alternative term Peckhamian mimicry (after George and Elizabeth Peckham) has been suggested, but is seldom used. For example, indigenous Australians who dress up as and imitate kangaroos when hunting would not be considered aggressive mimics, nor would a human angler, though they are undoubtedly practising self-decoration camouflage. Treated separately is molecular mimicry, which shares some similarity; for instance a virus may mimic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucochloridium Vogtianum
''Leucochloridium'' is a genus of parasitic trematode worms in the order Diplostomida. It Is the sole genus in the family Leucochloridiidae.Carus, C. G. (1835). Beobachtung über einen merkwürdigen schöngefärbten Eingeweidewurm, ''Leucochloridium paradoxum'' mihi, und dessen parasitische Erzeugung in einer Landschnecke, ''Succinea amphibia'' Drap. ''Helix putri''s Linn. ''Nova Acta Physico-Medica Academiae Caesareae Leopoldino Carolinae Naturae Curiosorum'' 17(7), 85–100. Members of this genus cause pulsating swellings in the eye-stalks of snails (a phenomenon colloquially called a ''zombie snail''), so as to attract the attention of predatory birds required in the parasites' lifecycle. Taxonomy Species Species in the genus ''Leucochloridium'' include: * '' Leucochloridium caryocatactis'' (Zeder, 1800) now in genus '' Urogonimus'' * '' Leucochloridium fuscostriatum'' Robinson, 1948 synonymised with ''L. variae'' * '' Leucochloridium holostomum'' (Rudolphi, 1819) * ''Leucoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucochloridium Phragmitophila
''Leucochloridium'' is a genus of parasitic trematode worms in the order Diplostomida. It Is the sole genus in the family Leucochloridiidae.Carus, C. G. (1835). Beobachtung über einen merkwürdigen schöngefärbten Eingeweidewurm, ''Leucochloridium paradoxum'' mihi, und dessen parasitische Erzeugung in einer Landschnecke, ''Succinea amphibia'' Drap. ''Helix putri''s Linn. ''Nova Acta Physico-Medica Academiae Caesareae Leopoldino Carolinae Naturae Curiosorum'' 17(7), 85–100. Members of this genus cause pulsating swellings in the eye-stalks of snails (a phenomenon colloquially called a ''zombie snail''), so as to attract the attention of predatory birds required in the parasites' lifecycle. Taxonomy Species Species in the genus ''Leucochloridium'' include: * '' Leucochloridium caryocatactis'' (Zeder, 1800) now in genus '' Urogonimus'' * '' Leucochloridium fuscostriatum'' Robinson, 1948 synonymised with ''L. variae'' * ''Leucochloridium holostomum'' (Rudolphi, 1819) * ''Leucoch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucochloridium Variae
''Leucochloridium variae'', the brown-banded broodsac, is a species of trematode whose life cycle involves the alternate parasitic invasion of certain species of snail and bird. While there is no external evidence of the worm's existence within the bird host, the invasion of the snail host involves the grotesque swelling of one or both of the snail's eye stalks. This invasion does not cause the snail's death. The swollen, pulsating eye stalk resembles a maggot. This modification attracts the parasite's definitive hosts, birds: the bird rips off the eye stalk and eats it, thus becoming infected with the sexually mature parasites. Later on the parasite's eggs are dropped with the bird's feces. Similar life-histories are found in other species in the genus ''Leucochloridium'', including ''Leucochloridium paradoxum''. The snail regenerates a replacement eye stalk, which can also become reinfected by the parasite. Taxonomy ''Leucochloridium variae'' was described on the basis of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucochloridium Fuscostriatum
''Leucochloridium'' is a genus of parasitic trematode worms in the order Diplostomida. It Is the sole genus in the family Leucochloridiidae.Carus, C. G. (1835). Beobachtung über einen merkwürdigen schöngefärbten Eingeweidewurm, ''Leucochloridium paradoxum'' mihi, und dessen parasitische Erzeugung in einer Landschnecke, ''Succinea amphibia'' Drap. ''Helix putri''s Linn. ''Nova Acta Physico-Medica Academiae Caesareae Leopoldino Carolinae Naturae Curiosorum'' 17(7), 85–100. Members of this genus cause pulsating swellings in the eye-stalks of snails (a phenomenon colloquially called a ''zombie snail''), so as to attract the attention of predatory birds required in the parasites' lifecycle. Taxonomy Species Species in the genus ''Leucochloridium'' include: * '' Leucochloridium caryocatactis'' (Zeder, 1800) now in genus '' Urogonimus'' * '' Leucochloridium fuscostriatum'' Robinson, 1948 synonymised with ''L. variae'' * ''Leucochloridium holostomum'' (Rudolphi, 1819) * ''Leucoch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Gustav Carus
Carl Gustav Carus (3 January 1789 – 28 July 1869) was a German physiologist and painter, born in Leipzig, who played various roles during the Romantic era. A friend of the writer Johann Wolfgang von Goethe, he was a many-sided man: a doctor, a naturalist, a scientist, a psychologist, and a landscape painter who studied under Caspar David Friedrich. Life and work In 1811 he graduated as a doctor of medicine and a doctor of philosophy. In 1814 he was appointed professor of obstetrics and director of the maternity clinic at the teaching institution for medicine and surgery in Dresden. He wrote on art theory. From 1814 to 1817 he taught himself oil painting working under Caspar David Friedrich, a Dresden landscape painter. Subsequently he studied under Julius Schnorr von Carolsfeld at the Oeser drawing academy. When the King of Saxony, Frederick Augustus II, made an informal tour of Britain in 1844, Carus accompanied him as his personal physician. It was not a state visit, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucochloridium Caryocatactis
''Leucochloridium'' is a genus of parasitic trematode worms in the order Diplostomida. It Is the sole genus in the family Leucochloridiidae.Carus, C. G. (1835). Beobachtung über einen merkwürdigen schöngefärbten Eingeweidewurm, ''Leucochloridium paradoxum'' mihi, und dessen parasitische Erzeugung in einer Landschnecke, ''Succinea amphibia'' Drap. ''Helix putri''s Linn. ''Nova Acta Physico-Medica Academiae Caesareae Leopoldino Carolinae Naturae Curiosorum'' 17(7), 85–100. Members of this genus cause pulsating swellings in the eye-stalks of snails (a phenomenon colloquially called a ''zombie snail''), so as to attract the attention of predatory birds required in the parasites' lifecycle. Taxonomy Species Species in the genus ''Leucochloridium'' include: * '' Leucochloridium caryocatactis'' (Zeder, 1800) now in genus '' Urogonimus'' * ''Leucochloridium fuscostriatum'' Robinson, 1948 synonymised with ''L. variae'' * ''Leucochloridium holostomum'' (Rudolphi, 1819) * ''Leucochl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
