metacercaria


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metacercaria

 [met″ah-ser-kar´e-ah] (pl. metacerca´riae)
The encysted resting or maturing stage of a trematode parasite in the tissues of an intermediate host.

met·a·cer·car·i·a

, pl.

met·a·cer·ca·ri·ae

(met'ă-ser-kar'ē-ă, -ē),
The postcercarial encysted stage in the life history of a fluke, before transfer to the definitive host. Some cercariae attach themselves to grass or other vegetation, form metacercaria, and later are ingested by herbivores, as in Fasciola and similar forms; others encyst in muscles of fish, as in Clonorchis, or in crayfish, as in Paragonimus.
[meta- + G. kerkos, tail]

metacercaria

/meta·cer·ca·ria/ (-ser-kar´e-ah) pl. metacerca´riae   the encysted resting or maturing stage of a trematode parasite in the tissues of an intermediate host or on vegetation.

met·a·cer·car·i·a

, pl. metacercariae (met'ă-sĕr-kar'ē-ă, -ē)
The postcercarial encysted stage in the life history of a fluke, before transfer to the definitive host. Some cercariae attach themselves to vegetation, form metacercariae, and are ingested by herbivores; others encyst in muscles of fish or crayfish.
[meta- + G. kerkos, tail]

metacercaria

a developmental stage in endoparasitic flukes in which the CERCARIA larva loses its tail (to become a metacercaria larva). Except in schistosomes the stage occurs while the organism is in the vertebrate host and it then develops directly into the adult.

Metacercaria (plural, metacercariae)

The encysted stage of a fluke larva that produces infection in human beings.
Mentioned in: Fluke Infections

metacercaria

pl. metacercariae; the encysted resting or maturing stage of a trematode parasite in the tissues of a second intermediate host or on vegetation.
References in periodicals archive ?
In exhibits that were deemed clear of snails, or where snails were negative for trematode metacercaria, birds returned to the habitat once fecal collection and surveillance was completed.
Acao dos diferentes metodos de conservacao na sobrevivencia de metacercarias de Phagicola longus (Ranson, 1920) Price, 1932, Parasito de mugilideos capturados no litoral do estado do rio de janeiro.
2008) registraram novas ocorrencias desta metacercaria no olho de Serrasalmus maculatus (Kner, 1858), Hypostomus regani (Ihering, 1905), Schizodon borellii (Boulenger, 1900) e Auchenipterus osteomystax Miranda-Ribeiro, 1918 coletados na bacia do rio Parana.
En el presente trabajo se han observado una metacercaria de didimozoidea en restos de la pared interna del estomago en potas evisceradas de 64 cm.
gouldii: two collected from SCR and one from NSS, the two locations with the highest mean metacercaria counts; the three individuals infested with sporocysts each had metacercarial counts greater than 100.
Paragonimus mexicanus posee testiculos largos que llegan hasta el extremo posterior del cuerpo, presenta ovario y testiculos ramificados y metacercaria libre dentro del cangrejo hospedero (Miyazaki et al, 1980).
Metacercaria The encysted stage of a monecious trematode; this stage succeeds the cercaria; metacercariae is plural.
On further examination, the helminth was identified as a metacercaria of Clinostomum complanatum (Rudolphi 1814).
ranarum has a prolonged intra molluscan phase of development (to be determined) a short life span for the metacercaria and a prolonged pre-patent period.