The effect of acanthocephalan parasites (Profilicollis spp.) on the hiding behaviour during low tide of two species of shore crabs (intermediate hosts), Macrophthalmus hirtipes (Brachyura: Ocypodidae) and Hemigrapsus crenulatus (Brachyura: Grapsidae), was examined at Blueskin Bay, South Island, New Zealand. Exposed M. hirtipes were found to have significantly higher infection levels than did hi...

The aim of this study was to investigate the post-cyclic transmission of Acanthocephalus tumescens (von Linstow, 1896) from Galaxias maculatus Jenyns to Oncorhynchus mykiss (Walbaum). Wild G. maculatus naturally infected with A. tumescens were fed to cultured rainbow trout, which were sacrificed at the second, third and fourth weeks post infection. Normally attached male and female acanthocepha...

The launch of The Journal of Parasitology (JP) by Henry Baldwin Ward in September 1914 was a historical landmark that witnessed the passage of the torch of acanthocephalan work, especially higher taxonomy, from Europe to the United States, with the excep-tion of the works of Anton Meyer, Yves Golvan, and a few Russian workers in the early twentieth century. At that juncture, there were only two...

Secure attachment to host tissues is essential for survival and reproduction in parasitic organisms. The production of elaborate attachment structures must be costly, however, and investments in attachment should be approximately proportional to the likelihood that a parasite will be dislodged. In the present study, relative investments in attachment as a function of body size and the type of h...

background: the effect of temperature and humidity on the maturation of toxocara cati eggs in an in vitro system was investigated. methods: suspensions of toxocara cati eggs, with 5% formalin/saline or 2.5% formalin/ringer were prepared and maintained at 37 °c under 40% humidity or at 25 °c under 98% humidity for 3 weeks for egg development. results: the suspension sample mixed by 2.5% formalin...

One hundred prairie rattlesnakes, Crotalus viridis viridis, from western South Dakota were examined for evidence of helminth parasites. Twenty-one percent were infected with 1 of 6 parasite species. The following species were recovered: Manodistomwn sp., Mesocestoides sp., Physaloptera sp., 2 different species of oligacanthorhynchid acanthocephala, and an unidentified species of acanthocephalan...

Background: The Sunda pangolin, Manis javanica Desmarest, 1822, is a critically endangered species of pangolin that occurs from Indonesia to southern China. Knowledge the biology and ecology M. limited, however there have been previous reports parasites, including nematodes, protozoans, ticks, cestode. Methods: An illegal shipment 88 carcasses, originally collected wild populations throughout s...

BACKGROUND The hooks of the acanthocephalan proboscis exhibit serial variation in size and shape. The Meristogram was developed by Huffman and Bullock (1975) to provide a graphical representation of this positional variation in hook morphology. Initial studies demonstrated the ability of the Meristogram to discriminate species within the genera Echinorhynchus and Pomphorhynchus (Huffman and Bul...