metacercaria


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metacercaria

[¦med·ə·sər′kar·ē·ə]
(invertebrate zoology)
Encysted cercaria of digenetic trematodes; the infective form.
References in periodicals archive ?
[5], 36 of adult by Sommerville [16] and 20 in the metacercaria of the present study; and did not refer to the precercarial stages.
Oral sucker and acetabulum of both metacercaria and the adults of M.
Helminth Humboldt Santa Clara Host site N P A N P Trematoda Alaria sp.(metacercaria) -- -- -- 3 5 cysts in skeletal muscle Clinostomum sp.
([dagger]) Unidentified digenean metacercaria. ([double dagger]) Psilostomatidae (Sphaeridiotrenna sp.?).
Tagelusplebeius was found housing two ciliate species without apparent host reaction and acting as first intermediate host for two digenetic trematode species of the families Fellodistomidae and Gymnophallidae, by hosting sporocysts (mainly in gonad and digestive gland that results in the replacement of host tissues) and as second intermediate host by housing a gymnophallid metacercaria. Likewise, T.
Ultraestructura del tegumento de la metacercaria, juvenil y adulto de Clinostomun complanatum (Trema toda: Clinostomidae).
Here the cercaria transform into another life stage called metacercaria. Unlike the metacercaria left behind in the abdomen, these never become infective.
KEY WORDS: gymnophallus, histopathology, Modiolus barbatus, sporocyst, metacercaria
Metacercaria de Echinochasmus zubedakhaname, parasito de Cichlasoma urophtalmus en Celestun, Yucatan, Mexico.
Trematodes invaded the gonadal follicles and different stages of maturation, from sporocysts containing germ balls and cercaria to metacercaria, could be observed (Fig.