Trematode sentence example

trematode
  • All the species are usually infested with Cercariae and Rediae, the larval forms of Trematode parasites of vertebrates.

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  • It must, however, be borne in mind that a Trematode may develop in an "aberrant" manner in one host and "normally" in another; and unless we knew the initial stock, the two forms would be regarded as distinct species,.

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  • The position of the Trematode on its host is of far-reaching importance.

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  • If ectoparasitic and attached to the skin, apertures or gills, the Trematode adopts more elaborate adhesive organs and undergoes a less complex development than are required for the endoparasitic members of the class.

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  • A different but still more interesting result is produced by these Trematode larvae on certain lamellibranchs.

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  • Here it gives rise by a peculiar process to numerous individuals of a second larval form, and these usually produce a third form from which the minute immature Trematode is developed.

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  • The larvae usually live in Molluscs, the mature worm in vertebrates, and the immature but metamorphosed Trematode in either host and also in pelagic and littoral marine and fresh-water invertebrates.

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  • There are a number of other digenean trematode infections.

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