Results 191 to 200 of about 5,419 (211)

Introduction of a Brachylaima species (Digenea: Brachylaimidae) to Australia

International Journal for Parasitology, 1990
A 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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Emendation of the subfamilies Caiguiriinae and Pygidiopsinae (Digenea) with a redescription of Caiguiria anterouteria (Digenea: Heterophyidae) and reassignment of Pygydiopsis crassus to Caiguiria

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, Norman O. Dronen, Alisha J. Davis   +2 more
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Diversity in the Monogenea and Digenea: does lifestyle matter?

International Journal for Parasitology, 2002
If the cestodes are excluded, then the parasitic platyhelminths of fishes divide neatly into the external and monoxenous Monogenea and the internal and heteroxenous Digenea. Both groups have apparently had long associations of coevolution, host switching and adaptation with fishes and have become highly successful in their respective habitats.
Cribb, T. H., Chisholm, L. A., Bray, R. A.   +2 more
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Studies on some digenea of the familyDidymozoidae

Proceedings / Indian Academy of Sciences, 1966
In the light of the above discussion, it appears that the parasites and their hosts form a biotype which is both exclusive and interchangeable. In the former case it is of such an extreme association as to be confined to a very limited geographical region. Using the parasites as “biological tags” in such cases appears to have great possibilities.
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A molecular phylogeny of the genus Ichthyocotylurus (Digenea, Strigeidae)

International Journal for Parasitology, 2001
Three 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, E. Tellervo Valtonen, Andrew S. Bell   +2 more
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A Phylogeny of Life-cycle Patterns of the Digenea

1972
Publisher Summary A comparison of helminth life-cycles reveals a number of singular features in the digenean pattern. Thus, in addition to the most singular feature, alternation of generations, there is the ubiquity of the cercaria, a stage designed for escape from the molluscan first host and for swimming, two patterns of behavior that are not ...
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Are glial cells of the Digenea (Platyhelminthes) muscle cells?

Parasitology Research, 2019
Muscle cells of a digenean fish blood fluke, Aporocotyle simplex, aggregate along the periphery of the cerebral ganglia. Solitary myocytons and sarcoplasmic processes with muscle fibres give rise to long, narrow lamellate projections, which are visible along the periphery and within ganglia.
Larisa G. Poddubnaya, David I. Gibson
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Sporocysts of Mesostephanus haliasturis (Digenea) produce miracidia

International Journal for Parasitology, 1993
This is the sixth report of a trematode that produces miracidia in its Sporocysts. Experimentally, we induced transmission of this parasite from snails to fish to cormorants. Thus, adult specimens were obtained and the species identified for the first time.
Barker, Stephen C., Cribb, Thomas H.
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A checklist of cercariae (Trematoda: Digenea) in molluscs from Brazil

Zootaxa, 2013
A checklist of digenetic trematodes found in molluscs from Brazil is presented based on 127 scientific articles published after a century of studies. To date 23 families, 35 genera and 46 species of trematodes were identified infecting 25 species of molluscs in the country.
Pinto, Hudson Alves, Melo, Alan Lane De
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REDESCRIPTION AND SURFACE ULTRASTRUCTURE OF PYGIDIOPSIS MACROSTOMUM (DIGENEA: HETEROPHYIDAE)

Journal of Parasitology, 2005
Pygidiopsis macrostomum Travassos, 1928, a poorly known species originally described from a single specimen from Rattus norvegicus (Erxleben, 1777) in Brazil, is redescribed on the basis of metacercariae from the mesenteries of naturally infected guppies Poecilia vivipara Bloch and Schneider, 1801 (Poeciliidae), and adults obtained from an experimental
Helene Santos Barbosa, Cláudia Portes Santos, Susana Balmant Emerique Simões   +2 more
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