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Acanthocephalan

Other Invertebrates

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Acanthocephalan, or thorny-headed worm, is a member of Acanthocephala, a group of parasitic worms characterized by an eversible proboscis armed with spines that it uses to pierce and hold the gut wall of its host. Acanthocephalans have complex life cycles involving at least two hosts, which may include invertebrates, fish, amphibians, birds and mammals, and about 1,420 species have been described.

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