cystacanth


Also found in: Medical.

cystacanth

[′sis·tə‚kanth]
(invertebrate zoology)
The infective larva of the Acanthocephala; lies in the hemocele of the intermediate host.
References in periodicals archive ?
We relied on gammarids that were naturally infected with cystacanth parasites, that is, those at the last larval stage that is infective for the definitive host and at which such changes occur in hosts, and studied the effect of acclimatization at different temperatures on the behavior of uninfected and infected individuals.
Changes in prevalence and intensity of infection of ProfilicoUis altmani (Perry, 3942) cystacanth (Acanthocephala) parasitizing the mole crab Emerita analoga (Stimpson, 3857): an El Nino cascade effect?
Voucher helminths from the 2004-2007 collection were deposited in the United States National Parasite Collection, USNPC, Beltsville, Maryland: Distoichometra bufonis (USNPC 100930); Glypthelmins quieta (USNPC 100931); Gorgoderina multilobata (USNPC 100932); Haematoloechus kernensis (USNPC 100933); Megalodiscus microphagus (USNPC 100934); Digenean metacercariae (USNPC 100938); Cosmocerca variabilis (USNPC 100935); Rhabdias ranae (USNPC 100936); Acanthocephalan cystacanth (USNPC 100937).
Gravid individuals of two species of Nematoda, Strongyluris similis Caballero, 1938, Thubunaea iguanae Telford, 1965 and one cystacanth of a species of oligacanthorhynchid Acanthocephala were found.
Intermediate hosts that harbor the infective stage of acanthocephalans, the cystacanth stage, may show physiological changes such as reduced [O.
Cystacanth larvae were recovered from two of the three immature Lepomis sp.
Helminths collected consisted of one single male oligacanthorhynchid cystacanth occurring within the mesentery adjacent to the proximal small intestine in an adult non-gravid female C.
ingens would first have to develop to an infective cystacanth stage in an intermediate insect host.