Acanthocephala

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Related to Acanthocephalan Worms: phylum Acanthocephala

Acanthocephala

 [ah-kan″tho-sef´ah-lah]
a phylum of elongate, mostly cylindrical organisms (thorny headed worms) parasitic in the intestines of all classes of vertebrates.

A·can·tho·ceph·a·la

(ă-kan'thō-sef'ă-lă),
The thorny-headed worms, a phylum (formerly considered a class) of obligatory parasites without an alimentary canal, characterized by an anterior introvertible spiny proboscis. They superficially resemble nematodes but are cestodelike in other traits, and hence are grouped as a distinctive phylum of helminths. In the adult stage they are parasites of vertebrate animals, mostly fish and amphibians; the larval stage is passed in invertebrates, chiefly crustaceans and insects.
[acantho- + G. kephalē, head]

Acanthocephala

/Acan·tho·ceph·a·la/ (ah-kan″tho-sef´ah-lah) a phylum of elongate, mostly cylindrical organisms (thorny-headed worms) parasitic in the intestines of all classes of vertebrates; in some classifications, considered to be a class of the phylum Nemathelminthes.

Acanthocephala

a phylum of elongate, mostly cylindrical organisms (thorny-headed worms) parasitic in the intestines of all classes of vertebrates.