@article {14, title = {Acanthocephalus parksidei sp. n. (Acanthocephala: Echinorhynchidae) from Wisconsin fishes.}, journal = {J Parasitol}, volume = {61}, year = {1975}, month = {1975 Apr}, pages = {301-6}, abstract = {

Acanthocephalus parksidei sp. n. is described from over 4,000 specimens recovered from 11 fish hosts in the Pike River, southeastern Wisconsin. A parksidei is a highly variable acanthocephalan which appears to present an intermediate form between the only 2 other members of the same genus, A. dirus and A. jacksoni, described from North American freshwater fishes. It is structurally similar to the larger A. dirus but is separated from it primarily by having fewer proboscis hook rows and hooks per row. It is separated from A. jacksoni on the basis of its slender body form, relatively larger size of male reproductive system in proportion to body size, as well as other features. It differs from the larger European A. lucii by having smaller proboscis hooks, different hook root shape, smaller proboscis receptacle, and smaller embryos.

}, keywords = {Acanthocephala, Animals, Female, Fish Diseases, Fishes, Helminthiasis, Helminthiasis, Animal, Male, Wisconsin}, issn = {0022-3395}, author = {Amin, O M} } @article {15, title = {Variability in Acanthocephalus parksidei Amin, 1974 (Acanthocephala: Echinorhynchidae).}, journal = {J Parasitol}, volume = {61}, year = {1975}, month = {1975 Apr}, pages = {307-17}, abstract = {

Acanthocephalus parksidei Amin, 1974, was recently described from 11 species of Wisconsin fishes. Considerable variation was observed in this acanthocephalan{\textquoteright}s body size, number and arrangement of proboscis hook, size of hooks, proboscis, proboscis receptacle, lemnisci, embryos, testes, and cement glands, and number of the latter two. Most of these variations were related to worm sex and age as well as host species. Structural variations in the shape and lobation of lemnisci, abnormalities in hooks and body wall, and changes associated with monorchidism in males were noted. The significance of the erection of this new taxon in relation to the taxonomic criteria applied to acanthocephalan species is discussed.

}, keywords = {Acanthocephala, Animals, Female, Fishes, Genetic Variation, Male, Trout}, issn = {0022-3395}, author = {Amin, O M} } @article {16, title = {Host and seasonal associations of Acanthocephalus parksidei Amin, 1974 (Acanthocephala: Echinorhynchidae) in Wisconsin fishes.}, journal = {J Parasitol}, volume = {61}, year = {1975}, month = {1975 Apr}, pages = {318-29}, abstract = {

Ecological associations of Acanthocephalus parksidei Amin, 1974, were studied in 11 southeastern Wisconsin fishes during 1972-73. Parasitic load was found to be related to host species, size (age), sex, concurrent infections, collection site, and season. Distribution in host intestine was related to the extent or intensity of infection, posterior migration, and concurrent infections. Parasitic cycle commenced in later summer-early autumn, peaked (in frequency and maturation) during the spring, and terminated in the late summer.

}, keywords = {Acanthocephala, Animals, Cestode Infections, Cyprinidae, Female, Fish Diseases, Fishes, Helminthiasis, Helminthiasis, Animal, Intestines, Male, Seasons, Trout, Wisconsin}, issn = {0022-3395}, author = {Amin, O M} }