@article {42, title = {Acanthocephala of marine fishes off Fiji Islands, with descriptions of Filisoma longcementglandatus n. sp., Neorhadinorhynchus macrospinosus n. sp. (Cavisomidae), and gravid females of Rhadinorhynchus johnstoni (Rhadinorhynchidae); and keys to species of }, journal = {J Parasitol}, volume = {80}, year = {1994}, month = {1994 Oct}, pages = {768-74}, abstract = {

A parasitological collection from marine fishes off the Fiji Islands yielded 5 species of acanthocephalans from 4 species of fish as follows: Filisoma longcementglandatus n. sp. from scat Scatophagus argus; Neorhadinorhynchus macrospinosus n. sp. from vermiculated rabbit fish Siganus vermicularis; Neorhadinorhynchus nudum (Harada, 1938) Yamaguti, 1939 (Cavisomidae) from mackerel tuna Euthynnus affinis; Rhadinorhynchus johnstoni Golvan, 1969 (Rhadinorhynchidae) from E. affinis; and Neoechinorhynchus agilis (Rudolphi, 1819) Van Cleave, 1916 (Neoechinorhynchidae) from striped mullet Mugil cephalus. All are new locality records and, except for N. agilis, new host records. Filisoma longcementglandatus is distinguished from all other species of the genus by its very long cement glands and size and armature of its proboscis. Neorhadinorhynchus macrospinosus has distinctly larger proboscis hooks than all other members of the genus. Keys to species of the genera Filisoma and Neorhadinorhynchus are included. Gravid females of the inadequately described R. johnstoni are described for the first time. Taxonomic notes on the other acanthocephalan species are also included.

}, keywords = {Acanthocephala, Animals, Female, Fiji, Fish Diseases, Fishes, Helminthiasis, Helminthiasis, Animal, Male, Seawater}, issn = {0022-3395}, author = {Amin, O M and Nahhas, F M} } @article {28, title = {First report of Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) from marine fish of the eastern seaboard of Vietnam, with the description of six new species.}, journal = {Parasite}, volume = {18}, year = {2011}, month = {2011 Feb}, pages = {21-34}, abstract = {

The occurrence of acanthocephalans of the genus Neoechinorhynchus Stiles and Hassall, 1905 in Vietnamese waters is reported for the first time. Six new species are described from seven species of marine fish of the families Belonidae, Clupeidae, Megalopidae, Mugilidae, and Sciaenidae, collected in Halong Bay of the eastern seaboard of Vietnam in 2008 and 2009. These are Neoechinorhynchus (Neoechinorhynchus) plaquensis n. sp. characterized by dermal plaques covering the entire trunk; Neoechinorhynchus manubriensis n. sp. with very long anterior proboscis hooks having roots with prominent anterior manubria and very small and equal middle and posterior hooks, two pseudo-retractors in the receptacle, simple vagina, and terminal gonopore; Neoechinorhynchus pennahia n. sp. with equal anterior and middle proboscis and somewhat smaller posterior hooks, and terminal female gonopore; Neoechinorhynchus ampullata with many giant nuclei in the body wall and lemnisci and a parareceptacle structure complex which includes pumping ampullas reported for the first time; Neoechinorhynchus (Neoechinorhynchus) longinucleatus n. sp. with very long giant nuclei in the Lemnisci, anteriorly twisted vagina, and subterminal female gonopore. Neoechinorhynchus (Neoechinorhynchus) ascus n. sp. is the second species of Neoechinorhynchus found with the parareceptacle structure/ampulla complex. Neoechinorhynchus (Neoechinorhynchus) johnii Yamaguti, 1929 of Bilqees, 1972 is not N. johnii because of proboscis armature and other discrepancies with the Yamaguti material. Notes on host distribution and feeding habits are also included.

}, keywords = {Acanthocephala, Animals, Female, Fish Diseases, Fishes, Helminthiasis, Animal, Intestinal Diseases, Parasitic, Male, Seawater, Vietnam}, issn = {1252-607X}, author = {Amin, O M and Ha, N V and Ha, D N} } @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} } @article {17, title = {Fessisentis tichiganensis sp. nov. (Acanthocephala: Fessisentidae) from Wisconsin fishes, with a key to species.}, journal = {J Parasitol}, volume = {66}, year = {1980}, month = {1980 Dec}, pages = {1039-45}, abstract = {

Fessisentis tichiganensis sp. nov. is described on the basis of 16 male and 24 female worms recovered from 11 species of fish of seven families in Tichigan Lake, southeastern Wisconsin, between 1977 and 1979. Specimens were most frequently encountered during the spring; the only two gravid females were recovered from Umbra limi, in early June. The same fish also serves as a transport host. A key separating F. tichiganensis from the four other known species in North America is presented. The new species most closely resembles F. friedi Nickol 1972 (= F. vancleavei haley and Bullock 1953), but can be separated from it by its longer proboscis which is armed with markedly more hooks per row, among other characteristics. Additional, new morphological observations are also reported.

}, keywords = {Acanthocephala, Animals, Female, Fishes, Male, Wisconsin}, issn = {0022-3395}, author = {Amin, O M} } @article {18, title = {Acanthocephala from lake fishes in Wisconsin: ecology and host relationships of Pomphorhynchus bulbocolli (Pomphorhynchidae).}, journal = {J Parasitol}, volume = {73}, year = {1987}, month = {1987 Apr}, pages = {278-89}, abstract = {

Pomphorhynchus bulbocolli Linkins in Van Cleave, 1919, was considerably more common in fishes of the river-connected Tichigan Lake than of the landlocked Silver Lake, southeastern Wisconsin. It is reported from 17 species of principal, accessory, and occasional definitive hosts (new record in Moxostoma carinatum) and from 13 species of paratenic hosts (new records in Amia calva, Ictalurus punctatus, Lepomis cyanellus, and Pomoxis nigromaculatus). Infection patterns were influenced by fish species, feeding behavior, temperature, availability of intermediate host, type of water body, fish movement, and changes in fish host community. Host roles are not fixed but are often interchangeable. A seasonal cycle in prevalence, intensity, and maturation was evident, with greatest abundance and maturation during summer and recruitment during summer and autumn. Recruitment of new infections, development, and release of eggs, however, occurred all year. Sex ratio changed from near equal in new infections to one more highly in favor of females in older adults. Female fish were considerably more frequently and heavily infected than males. No relationship with fish age (size) was evident. Worms were mostly attached in posterior intestinal locations but initial establishment sites correlated with temperature. Translocation of P. bulbocolli due to competitive exclusion in concurrent infections was not observed. The significance of extraintestinal larval forms in the cycle of transmission was noted.

}, keywords = {Acanthocephala, Animals, Female, Fish Diseases, Fishes, Helminthiasis, Helminthiasis, Animal, Host-Parasite Interactions, Intestinal Diseases, Parasitic, Male, Seasons, Wisconsin}, issn = {0022-3395}, author = {Amin, O M} } @article {22, title = {Redescription of Hebesoma violentum Van Cleave, 1928 (Acanthocephala: Neoechinorhynchidae).}, journal = {J Parasitol}, volume = {78}, year = {1992}, month = {1992 Feb}, pages = {30-3}, abstract = {

Hebesoma violentum Van Cleave, 1928, is redescribed from 155 paratypes from Van Cleave\&$\#$39;s original 1921 and 1923 collections in China. The present distribution of H. violentum in China and the Soviet Union is reported and the uncertain status of Hebesoma derosum Gupta and Jain, 1973, examined.

}, keywords = {Acanthocephala, Animals, China, Female, Fishes, Male}, issn = {0022-3395}, author = {Amin, O M} }