flatworm


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flatworm:

see PlatyhelminthesPlatyhelminthes
, phylum containing about 20,000 species of soft-bodied, bilaterally symmetrical, invertebrate animals, commonly called flatworms. There are four classes: the free-living, primarily aquatic class, Turbellaria, and Trematoda, Cestoda, and Monogenea, which are
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; wormworm,
common name for various unrelated invertebrate animals with soft, often long and slender bodies. Members of the phylum Platyhelminthes, or the flatworms, are the most primitive; they are generally small and flat-bodied and include the free-living planarians (of the class
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.

flatworm

[′flat‚wərm]
(invertebrate zoology)
The common name for members of the phylum Platyhelminthes; individuals are dorsoventrally flattened.

flatworm

any parasitic or free-living invertebrate of the phylum Platyhelminthes, including planarians, flukes, and tapeworms, having a flattened body with no circulatory system and only one opening to the intestine
References in periodicals archive ?
Recent research has linked the infection of a flatworm parasite called Ribeiroia ondatrae to amphibian malformations," says Larsen.
The New Zealand flatworm is found in Scotland, Ireland and the North of England - but the South West of England has the Australian flatworm which is causing similar problems.
About the only example is when a simple animal such as a flatworms is cut in half; it's possible for each half to grow into a completed worm again.
However, the researchers found that the small flatworm could cause significant damage to coral reefs.
Together they manipulated the flatworm to knock out genes needed to assemble these centrosomes.
In a paper entitled "Cytosine methylation regulates oviposition in the pathogenic blood fluke Schistosoma mansoni," which is published in Nature Communications, Professor Karl Hoffmann from the University's Institute of Biological, Environmental and Rural Sciences outlines how they have identified a specific DNA modification of the parasitic flatworm Schistosoma mansoni that gives rise to the disease schistosomiasis.
Centrifu-G's team members will study wound healing in the flatworm "Planaria," which has many physiological systems in common with humans.
The creature is a kind of flatworm from Australia, though not the type that eats earthworms.
dendriticum is a flatworm (or fluke as flatworms are sometimes called).
Eggs from the flatworm are shed into channel catfish ponds, where they hatch and form larvae that infect an intermediate host, the ram's-horn snail, Planorbella trivolvis.
The flatworm of New Zealand, for example, is a monster worm that lurks in root balls and escapes to eat our helpful earthworms.
It's just possible that the New Zealand flatworm could have entered your garden, which kills off the earthworms.