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Acanthocephala / ə ˌ k æ n θ oʊ ˈ s ɛ f ə l ə / [3] (Greek ἄκανθος, akanthos 'thorn' + κεφαλή, kephale 'head') is a group of parasitic worms known as acanthocephalans, thorny-headed worms, or spiny-headed worms, characterized by the presence of an eversible proboscis, armed with spines, which it uses to pierce and hold the gut wall of its host.
Life cycle of Acanthocephala. [3] [a] The life cycle of an acanthocephalan consists of three stages beginning when an infective acanthor (development of an egg) is released from the intestines of the definitive host and then ingested by an arthropod, the intermediate host. Although the intermediate hosts of Acanthocephaloides are arthropods.
Acanthocephala terminalis will begin its mating period in late spring, and females will lay eggs on host plants. Once the juveniles hatch they will molt five times before they reach adulthood. With each molt the nymphs will slightly more resemble the adults. Acanthocephala terminalis overwinters as an adult. [1]
Acanthocephala, also known as spine-headed bugs, [2] [3] is a New World genus of true bugs in the family Coreidae. [1] The scientific name is derived from the Greek ἄκανθα (akantha) meaning "thorn/spine" and κεφαλή (kephale) meaning "head". [4] This name refers to the diagnostic spine on the front of the head. [5]
Palaeacanthocephala ("ancient thornheads") is a class within the phylum Acanthocephala. The adults of these parasitic platyzoans feed mainly on fish , aquatic birds and mammals . This order is characterized by the presence of lateral longitudinal lacunar canals and a double-walled proboscis receptacle. [ 1 ]
The Florida leaf-footed bug (Acanthocephala femorata) is a species of insect. The genus name Acanthocephala means "spiny head" and comes from the pointed tylus at the tip of the head. [2] Acanthocephala femorata is found in the continental United States and Mexico. [1] This insect is considered a pest, eating and causing damage to citrus and ...
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The worms have been found in the abdominal wall, vaginal cavity, peritoneal cavity, and pericardium of both male and female hosts, typically of young adult age or older. Oncicola canis, specifically, can be found in the small intestine of dogs and cats. The worms use the hooks within their proboscis to attach deep to the intestinal wall of ...