Results 211 to 220 of about 19,196 (260)
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Opistholobetines (Digenea: Opecoelidae) in Australian tetraodontiform fishes
Systematic Parasitology, 2018Opistholebetine opecoelids are reported following examination of 1,041 individual tetraodontiform fishes, comprising 60 species and seven families, collected in Australian waters between 1986 and 2018. Nine species consistent with Opistholebes Nicoll, 1915, Heterolebes Ozaki, 1935 or Maculifer Nicoll, 1915 were recovered. However, phylogenetic analysis
Storm B. Martin +3 more
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Interpretation of life history pattern in the Digenea
International Journal for Parasitology, 1974Abstract The nature of secondary multiplication in the Digenea, especially in the molluscan host is reviewed. The concepts of alternation of generations and polyembryony are examined and discarded as unhelpful. In the absence of both meiosis and recognizable ovaries in miracidia, sporocysts and rediae, there are no criteria for distinguishing diploid
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Control of Swimming in Cercariae of Proterometra macrostoma (Digenea)
The Journal of Parasitology, 1983A specific acetylcholinesterase (AChE) was localized histochemically in Proterometra macrostoma cercariae. This esterase activity was inhibited by eserine, but was resistant to tetraisopropyl pyrophosphoramide. A transverse band of intense AChE activity was observed in the posterior region of the tail.
David J. Prior, Gary L. Uglem
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Thetines and Betaines of the Red Alga Digenea simplex
Journal of Natural Products, 1993From the aqueous extract of the red alga Digenea simplex, seven Dragendorff-positive compounds have been isolated and their structures determined by spectral and chemical methods. The taxonomic significance of their occurrence and possible biosynthetic relationships between some of these compounds are also discussed.
Angela Patti +4 more
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Journal of Parasitology, 2018
This paper reports the first occurrence of Plesiochorus cymbiformis (Digenea: Gorgoderidae) in a loggerhead turtle (Caretta caretta [Testudines, Cheloniidae]) in Brazil and describes the histological findings of related injuries to the urinary bladder.
M. Werneck +4 more
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This paper reports the first occurrence of Plesiochorus cymbiformis (Digenea: Gorgoderidae) in a loggerhead turtle (Caretta caretta [Testudines, Cheloniidae]) in Brazil and describes the histological findings of related injuries to the urinary bladder.
M. Werneck +4 more
semanticscholar +1 more source
Journal of Wildlife Diseases, 1988
Over the past 20 yr, recurrent late-summer mortality of dabbling ducks in southern Québec has been attributed to the digenean parasite Cyathocotyle bushiensis. This study attempted to determine whether this parasite was still implicated in the epizootics, and examined aspects of the ecology of the parasite in the definitive host.
John Hoeve, Marilyn E. Scott
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Over the past 20 yr, recurrent late-summer mortality of dabbling ducks in southern Québec has been attributed to the digenean parasite Cyathocotyle bushiensis. This study attempted to determine whether this parasite was still implicated in the epizootics, and examined aspects of the ecology of the parasite in the definitive host.
John Hoeve, Marilyn E. Scott
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Experimental Infections of Waterfowl with Sphaeridiotrema globulus (Digenea)
Journal of Wildlife Diseases, 1989Sphaeridiotrema globulus in experimentally infected mute swans (Cygnus olor), mallard ducks (Anas platyrhynchos) and Canada geese (Branta canadensis) induced ulcerative hemorrhagic enteritis. Sites of infection include the jejunum and ileum. The digeneans ulcerated the intestine. The inflammatory response was primarily lymphocytic with some eosinophils.
Jane E. Huffman, Douglas E. Roscoe
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Introduction of a Brachylaima species (Digenea: Brachylaimidae) to Australia
International Journal for Parasitology, 1990A Brachylaima species recorded previously from the house mouse (Mus domesticus) in South Australia is shown to use the introduced European snails Cernuella virgata and Cochlicella barbara as first intermediate hosts, and the same two species and Theba pisana as second intermediate hosts. The life cycle is typical of Brachylaima species. The parasite is
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Zootaxa, 2004
During a study of members of the genus Pygidiopsis from wading birds from the Texas gulf coast, specimens of Caiguiria anterouteria from the United States National Parasite Collection and from the Senckenberg Museum, Frankfurt and specimens of Pygidiopsis macrostomum from the Natural History Museum, London were examined.
Charles K. Blend +2 more
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During a study of members of the genus Pygidiopsis from wading birds from the Texas gulf coast, specimens of Caiguiria anterouteria from the United States National Parasite Collection and from the Senckenberg Museum, Frankfurt and specimens of Pygidiopsis macrostomum from the Natural History Museum, London were examined.
Charles K. Blend +2 more
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A molecular phylogeny of the genus Ichthyocotylurus (Digenea, Strigeidae)
International Journal for Parasitology, 2001Three nucleotide data sets, two nuclear (ribosomal internal transcribed spacer regions 1 and 2, ITS1 and ITS2) and one mitochondrial (cytochrome c oxidase subunit 1, CO1), were analysed using distance matrix and maximum likelihood methods to determine the inter-relationships amongst the four species attributed to the genus Ichthyocotylurus Odening ...
Christina Sommerville +2 more
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