cystacanth


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cys·ta·canth

(sis'tă-kanth),
The fully developed larva of Acanthocephala, infective to the final host and with an inverted fully formed proboscis characteristic of the adult worm.
[cyst- + G. akantha, thorn or spine]

cystacanth

an intermediate stage of Macracanthorhyncus spp. in arthropods.
References in periodicals archive ?
The brightly colored cystacanth stages of these parasites are visible through the gammarid cuticle, allowing preliminary selection of infected individuals directly in the field.
8 (1-27) Oligacarrathorhynchid cystacanth 0 -- -- -- -- 2004-2007 collection Mean intensity n Prevalence (range) Cestoda Distoichometra bufonis 4 2% 2/100 2.
Acanthocephalan cystacanths have been reported from Ctenosaura pectinata, Phyllodactylus lanei, Sceloporus jarrovii and S.
pulex are easily recognized, because the yellow-orange cystacanth stage of P.
When eaten by the definitive host, the cystacanth excysts and develops to maturity in the digestive tract.
Morphological measurements and characteristics of the mounted everted specimen are identical to the everted cystacanths of Macracanthorhynchus ingens (Linstow 1879) Meyer 1933, described by Elkins & Nickol (1983) and consistent with the cystacanth description by Moore (1946).
Altered evasive behavior and responses to light in amphipodes harboring acanthocephalan cystacanths.
larvae) and one species of Acanthocephala represented by cystacanths (Oligacanthorhynchidae), were found.
National Parasite Collection, Beltsville, Maryland: Oochoristica macallisteri, 87280; Physaloptera retusa, 87282; Spauligodon giganticus, 87281; oligacanthorhynchid acanthocephalan cystacanths, 87283.
Acanthocephalan cystacanths were placed in tap water 12-24 h to induce eversion of the proboscis for identification purposes, and fixed in 10% glycerol in 70% ethanol.
six (13%) with oligacanthorhynchid acanthocephalan cystacanths, six (13%) with Oochoristica bivitellobata, one (2%) with Parathelandros texanus and 16 (33%) with Pharyngodon warneri.
Rudolphi 1819, five percent with Parathelandros texanus Specian & Ubelaker 1974, two percent with Pharyngodon warneri Harwood 1932, and six percent with oligacanthorhynchid acanthocephalan cystacanths.