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Article
Ultrastructure of pigmented photoreceptors of larvalMulticotyle purvisi (Trematoda, Aspidogastrea)
The two eyespots of larvalMulticotyle purvisi lie on the posterior of the brain dorsal to the pharynx. Each ocellus consists of one pigment cell and two rhabdomeres, one in the antero-lateral and one in the poste...
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Article
Non-ciliate sensory receptors of larvalMulticotyle purvisi (Trematoda, Aspidogastrea)
Four types of presumptive non-ciliate sensory receptors of larvalMulticotyle purvisi (Trematoda, Aspidogastrea) are described by transmission electronmicroscopy. One pair of receptors in the mouth cavity has two ...
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Article
Paired multiciliate receptor complexes in larvalMulticotyle purvisi (Trematoda, Aspidogastrea)
An anterior pair of receptor complexes dorsal to the mouth cavity of larvalMulticotyle purvisi (Trematoda, Aspidogastrea) is described by transmission electronmicroscopy. Each complex consists of two dendrites. O...
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Article
Uniciliate sensory receptors of larvalMulticotyle purvisi (Trematoda, Aspidogastrea)
Seven types of presumptive ciliate sensory receptors of larvalMulticotyle purvisi (Trematoda, Aspidogastrea) are described by transmission electronmicroscopy. The type 1 receptor has one electron-dense collar and...
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Article
Ultrastructural studies of juvenileAustramphilina elongata: transmission electron microscopy of sensory receptors
The ultrastructure of three types of presumptive sensory receptors is described in the juvenile amphilinidAustramphilina elongata infecting the freshwater crayfishCherax destructor: a non-ciliate tegumental recep...
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Article
Metastatic spinal cord compression
We reviewed all medical records concerning patients suffering from spinal cord or cauda equina compression (SCC) secondary to cancer, in the eastern part of Denmark, from 1979 through 1985.
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Article
At least eight types of sense receptors in an endoparasitic flatworm: a counter-trend to sacculinization
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Article
Development of the protonephridia of Austramphilina elongata
In embryos of Austramphilina elongata, ciliary tufts (flames) of three terminal cells are enclosed by cytoplasmic cylinders of a single, proximal canal cell. The cylinders are joined to form a single capillary, c...
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Article
Gill Monogenea of deepwater and surface fish in southeastern Australia
The faunas of gill Monogenea of marine teleost fishes in deep and surface waters of southeastern Australia are compared, based on extensive surveys: 1563 fish (66 or 67 species, 35 families, 15 orders) in deep...
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Article
Ultrastructure of flame cells and protonephridial capillaries of Craspedella and Didymorchis (Plathelminthes, Rhabdocoela)
The ultrastructure of the flame cells and protonephridial capillaries of the Rhabdocoela Craspedella sp. and Didymorchis sp., ectocommensals on the freshwater crayfish Cherax destructor in eastern Australia is de...
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Article
Differences in species diversity of Monogenea between the Pacific and Atlantic Oceans
Data from five extensive surveys each in the Pacific and Atlantic Oceans show that relative species diversity (number of parasite species per host species) of gill Monogenea of coastal marine fishes is greater...
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Article
Increased viviparity of marine parasites at high latitudes
For the first time, Thorson's rule, that non-pelagic development increases with latitude, is shown to apply to a group of marine parasites. Relative and absolute numbers of species of viviparous Monogenea, gil...
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Article
Subsurface sense receptors in the larva of Austramphilina elongata Johnston, 1931 (Amphilinidea)
The ultrastructure of tegumental and subtegumental receptors in the larva of Austramphilina elongata is described. The receptors are terminal swellings of dendrites and contain numerous small vesicles and neurofi...
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Article
Two ciliate sense receptors in the larva of Austramphilina elongata Johnston, 1931 (Amphilinidea)
The ultrastructure of a uniciliate and a quadruciliate receptor in the anterior end of the larva of Austramphilina elongata is described on the basis of serial sections. The uniciliate receptor has numerous branc...
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Article
Ecology of marine parasites
Important ecological aspects of marine parasites are discussed. Whereas effects of parasites on host individuals sometimes leading to death are known from many groups of parasites, effects on host populations ...
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Article
Zoogeography of marine parasites
Latitudinal gradients in species numbers of marine parasites, differences between the Atlantic and Indo-Pacific Oceans, latitudinal gradients in frequency and intensity of infection, in host range and specific...
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Article
Population dynamics of two snail species, Planaxis sulcatus and Cerithium moniliferum, and their trematode species at Heron Island, Great Barrier Reef
The population dynamics of the prosobranch snail Planaxis sulcatus and its trematode parasites on 600 m of beachrock on the southern side of Heron Island, Great Barrier Reef, were studied. Populations of Planaxis
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Article
Niche width of parasites in species-rich and species-poor communities
Niche width of ectoparasites of marine fishes, as measured by host range and microhabitat width, is not affected by the number of species in a community. There is no reduction in species numbers of Monogenea d...
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Article
Host specificity indices of parasites and their application
Indices are defined which describe host specificity of parasites but can be applied to any association between organisms. The indices are used to analyze latitudinal differences in host specificity of marine M...
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Article
Diversity gradients of marine Monogenea in the Atlantic and Pacific Oceans
The number of species of Monogenea per marine fish species increases from high to low latitudes, but is much greater in the Pacific Ocean. It is suggested that the differences are due to the more advanced evol...
