@article {59, title = {Redescription of sphaerirostris picae (acanthocephala: Centrorhynchidae) from magpie, pica pica, in northern Iran, with special reference to unusual receptacle structures and notes on histopathology}, journal = {Journal of ParasitologyJ. Parasitol.}, volume = {96}, year = {2010}, note = {Cited By (since 1996):3Export Date: 23 April 2013Source: ScopusCODEN: JOPAA:doi 10.1645/GE-2249.1PubMed ID: 20557203Language of Original Document: EnglishCorrespondence Address: Amin, O. M.; Institute of Parasitic Diseases, 11445 E. Via Linda $\#$ 2-419, Scottsdale, AZ 85259, United States; email: omaramin@aol.comReferences: Bancroft, J.D., Gamble, M., (2001) Theory and Practice of Histological Techniques, p. 800. , 5th ed Churchill Livingstone Publishers, Edingburough, U.K;Belopolskaya, M.M., Acanthocephala from charadriiform birds in the European part of the USSR Vestink Leningradskogo Universiteta (1983) Biologiya, 3, pp. 17-27; Cordonnier, L.M., Ward, H.L., A redescription of Sphaerirostris teres (Westrumb, 1821) (Acanthocephala) from crows of Egypt (1968) Journal of the Tennessee Academy of Science, 43, pp. 105-107; De Marval, L., Monographie de acanthocephales d{\textquoteright}soiseaux (1905) Revue Suisse Zoolgie, 13, pp. 195-387; Dimitrova, Z.M., Georgiev, B.B., Genov, T., Acanthocephalans of the family Centrorhynchidae (Palaeacanthocephala) from Bulgaria (1997) Folia Parasitologica, 44, pp. 224-232; Murai, E., Genov, T., Some species of the family Centrorhynchidae Van Cleave, 1916 (Acanthocephala) from Hungarian birds (1995) Parasitologia Hungarica, 28, pp. 89-99; Dollfus, R.P.H., Golvan, Y., Le genre Centrorhynchus L{\"u}he, 1911 (Acanthocephala-Polymorphidae) (1957) Note Rectificative Bulletin IFAN, Ser. A, 19, pp. 412-416; Florescu, B.I., Ienistea, M.-A., Apercu sur les acanthocephales de Roumanie (Acanthocephala) (1984) Travaux de Mu{\'s}eum d{\textquoteright}Histoire Naturelle Grigore Antipa, 25, pp. 7-45; Galigher, A.E., Kozloff, E.N., (1971) Essentials of Practical Microtechnique, p. 531. , 2nd ed Lee and Febiger, Philadelphia, Pennsylvania; Golvan, Y., Le genre Centrorhynchus l{\"u}he 191 (Acanthocephala: Polymorphidae). Revision des esp{\`e}ces europ{\`e}ennes et description d{\textquoteright}une nouvelle esp{\`e}ce Africaine parasite de rapace diurne (1956) Bulletin de l{\textquoteright}Institute Francais d{\textquoteright}Afrique Noire (Ser. A), 18, pp. 732-785; Le Phylum des Acanthocephala. Troisi{\`e}me Note. La Classe de Palaeacanthocephala (Meyer, 1931) ( suite) (1960) Annales de Parasitologie Humaine et Comparee, 35, pp. 575-593; Nomenclature of the acanthocephala (1994) Research and Reviews in Parasitology, 54, pp. 135-205; Hoklova, I.G., Acanthocephalans of birds from Yakutiya (1971) Trudy Gelan, 22, pp. 215-223; Acanthocephalans of terrestrial vertebrates of USSR fauna (1985) Izdatel{\textquoteright}Stvo {\'N} Auk{\'a}, p. 276. , Moscow, Russia; (1986) The Acanthocephalan Fauna of Terrestial Vertebrates of SSSR, p. 276. , Nauka, Moscow, Russia; Kienan, J.A., (2002) Histological and Histochemical Methods; Theory and Practice, p. 502. , Churchill Livingstone, Edingburough, U.K; Lee, R.E., (1992) Scanning Electron Microscopy and X-ray Microanalysis, p. 458. , Prentice Hall, Englewood Cliffs, New Jersey; Lisitsyna, O.I., Tkach, V.V., Morphology of cystacanths of some acanthocephalans from aquatic and terrestrial intermediate hosts in the Ukraine (1994) Helminthologia, 31, pp. 83-90; Meyer, A., Acanthocephala (1932) Klassen und Ordnungen des Tier-Reichs, pp. 333-582. , Dr. H. G. Bronns, Leipzig, Germany, Bd. 4,2 Abt. 2 Buch, I Leif: 1-332 and 2 Lief; Mullarney, K., Svensson, L., Setterstrom, D., Grant, P.J., (1999) Collins Bird Guide, p. 512. , Harper Collins Publishers Ltd., London, U.K; Petrochenko, V.I., (1958) Acanthocephala of Domestic and Wild Animals, 2. , Moscow: Isdatel{\textquoteright}stv Akademii Nauk SSSR, Moscow; Schmidt, G.D., Kuntz, R.E., Centrorhynchus spilornae sp. n. (Acanthocephala), and other Centrorhynchidae from the far East (1969) Journal of Parasitology, 55, pp. 329-334; Sultanov, M.A., Kabilov, T.K., Siddikov, B.K.H., Infection of Isopoda with helminth larvae (1980) Uzbekskii Biologicheskii Zhurnal, 54, p. 7; Trost, C.H., Black-billed magpie (Pica pica) (1999) The Academy of Natural Sciences, pp. 1-28. , The birds of North America, account 389 A. Poole and F. Gill (eds.). Philadelphia, Pennsylvania, and The American Ornithologists{\textquoteright} Union, Washington, D.C; Van Cleave, H.J., Centrorhynchus pinguis n. sp., from China (1918) Journal of Parasitology, 4, pp. 164-169; Westrumb, A.H.L., De helminthibus acanthocephalis. Commentatio historico-Anatomico adnexo recensu animalium (1821) Musco Vindobonensi Circa Helminthes Dissectorum et Singularum Specierum Harum in Illis Repertarum, p. 85. , Helwing Edit., Hanoverae Helwig; Yamaguti, S., Acanthocephala (1963) Systema Helminthum, 5, p. 423. , Interscience Publishers, New York, New York }, month = {2010///}, pages = {561 - 568}, abstract = {

Adults of Sphaerirostris picae (Rudolphi, 1819) Golvan, 1956 are described from European magpie, Pica pica Linnaeus (Corvidae), collected in 2008 from wooded areas near the northern Iranian town of Tonekabon by the southern shores of the Caspian Sea. Other specimens also were collected from Corvus cornix Linnaeus, Corvus corone Linnaeus, and Corvus frugilegus Linnaeus (Corvidae) in the same location, as well as from some of these hosts in other locations. Our specimens had 31-38 proboscis hook rows on the ovoid anterior proboscis and 27-36 spine rows on the cylindrical- to cone-shaped posterior proboscis, each with 8-10 hooks and 2-5 spines per row, respectively. They are distinguished from those of all other species of the genus by having a unique prominent expansion of the dorsal inner receptacle wall, called the receptacle process (RP), anteriorly into the anterior proboscis and by the presence of longitudinal alveolar lobes throughout the receptacle and proboscis. The RP is described using histological sections. Sphaerirostris picae is further distinguished from 2 closely related species, namely, Sphaerirostris lancea (Westrumb, 1821) Golvan, 1956 and Sphaerirostris pinguis (Van Cleave, 1918) Golvan, 1956, by characteristics of proboscis armature, position of female gonopore, and other reproductive system and receptacle features. Histological sections revealed damage to host intestinal tissue. \© 2010 American Society of Parasitologists.

}, keywords = {Acanthocephala, Acanthocephalus, adult, Animals, article, Bird Diseases, Centrorhynchidae, Corvidae, Corvus corone, Corvus corone cornix, Corvus frugilegus, Female, flatworm, genital system, Helminthiasis, Animal, histopathology, host-parasite interaction, intestine, Iran, Male, Microscopy, Electron, Scanning, nonhuman, parasite, Parasitology, Passeriformes, Pica pica, Prevalence, reproductive biology, Seasons, songbird, species difference, species identification, Sphaerirostris lancea, Sphaerirostris picae, Sphaerirostris pinguis}, isbn = {00223395 (ISSN)}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77953830637\&partnerID=40\&md5=c789c4287fb9706eeebeed3bd11e63b9}, author = {Amin, O.M. and Heckmann, R.A. and Halajian, A. and Eslami, A.} } @article {44, title = {Morphometric discrimination of two allozymically diagnosed sibling species of the Echinorhynchus gadi Zoega in Muller complex (Acanthocephala) in the North Sea.}, journal = {Systematic Parasitology}, volume = {60}, year = {2005}, note = {Cited By (since 1996):4Export Date: 23 April 2013Source: ScopusPubMed ID: 15841350Language of Original Document: EnglishCorrespondence Address: Wayland, M.T.: Chemicals/CASEnzymes}, month = {2005///}, pages = {139 - 149}, abstract = {

Allozyme electrophoresis was used to detect biological species of the E. gadi complex from gadids from the northern North Sea. A fixed difference at one of nine enzyme loci surveyed confirmed the existence of two reproductively isolated, sympatric species. Mixed infections of two E. gadi spp. (termed A and B) were observed in Gadus morhua and Pollachius virens. E. gadi sp. B was also found in Melanogrammus aeglefinus and Merlangius merlangus. The presence of gravid females of E. gadi spp. A and B in the same host species, P. virens, and sometimes in the same host individual, indicates that neither differential host-specificity nor seasonal differences in mating time are responsible for their reproductive isolation. Morphological study of probosces from electrophoretically identified specimens demonstrated that the two species can be discriminated in graphical and cluster analyses of hook morphometrics. E. gadi sp. I (of Vainola etal., 1994) and E. gadi sp. A are probably conspecific.

}, keywords = {Acanthocephala, Acanthocephalus, allele, Alleles, animal, animal parasitosis, Animals, article, Atlantic Ocean, body size, Body Weights and Measures, comparative study, enzyme, Enzymes, Female, fish disease, Fish Diseases, Gadiformes, genetics, Great Britain, Helminthiasis, Animal, host parasite interaction, Host-Parasite Relations, intestine, Intestines, isolation and purification, Male, morphometrics, North Sea, Parasitology, physiology, sea water, Seawater, species difference, Species Specificity, United Kingdom}, isbn = {01655752 (ISSN)}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-22844439518\&partnerID=40\&md5=2c536e99e51d16dba1aea15afe7bc92d}, author = {Wayland, M.T. and Gibson, D.I. and Sommerville, C.} } @article {46, title = {Echinorhynchus brayi n. sp. (Acanthocephala: Echinorhynchidae) from Pachycara crassiceps (Roule) (Zoarcidae), a deep-sea fish}, journal = {Systematic ParasitologySyst. Parasitol.}, volume = {43}, year = {1999}, note = {Cited By (since 1996):2Export Date: 23 April 2013Source: ScopusCODEN: SYPAD:doi 10.1023/A:1006185613402PubMed ID: 10619060Language of Original Document: EnglishCorrespondence Address: Wayland, M.T.; Department of Zoology, Natural History Museum, Cromwell Road, London SW7 5BD, United KingdomReferences: Amin, O.A., Classification (1985) Biology of the Acanthocephala, pp. 27-72. , Crompton, D.W.T. \& Nickol, B.B. (Eds) Cambridge: Cambridge University Press;Anderson, M.E., Review of the eelpout genus Pachycara Zugmayer, 1911 (Teleostei: Zoarcidae), with descriptions of six new species (1989) Proceedings of the California Academy of Sciences, 46, pp. 221-242; Andriashev, A.P., Zoarcidae (1986) Fishes of the North-Eastern Atlantic and the Mediterranean, pp. 1130-1150. , Whitehead, P.J.P., Bauchot, M.L., Hureau, J.C., Nielsen, J. \& Turtonese, E. (Eds) Paris: UNESCO; Armstrong, H.W., (1974) A Study of the Helminth Parasites of the Family Macrouridae from the Gulf of Mexico and Caribbean Sea: Their Systematics, Ecology and Zoogeographical Implications, , PhD Thesis, Texas A \& M University, 329 pp; Bray, R.A., Annotated checklist of digenean parasites of Macrouridae (Teleostei, Gadiformes) (1995) Acta Parasitologica, 40, pp. 168-192; Campbell, R.A., Haedrich, R.L., Munroe, T.A., Parasitism and ecological relationships among deep-sea benthic fishes (1980) Marine Biology, 57, pp. 301-313; Dollfus, R.P., Acanthoc{\'e}phalid{\'e} d{\textquoteright}un poisson captur{\'e} par 4.785 m de profondeur (1931) Annales de Parasitologie Humaine et Compar{\'e}e, 9, pp. 185-187; Dollfus, R.P., Sur trois helminthes (Distomien, T{\'e}trarhynque, Palaeacanthoc{\'e}phale) d{\textquoteright}un Melanoglaea ventralis K. Barnard, 1941, poisson t{\'e}l{\'e}ost{\'e}en (1960) Bulletin de L{\textquoteright}Institut Fran{\c c}ais d{\textquoteright}Afrique Noire, 22 (2), pp. 385-394. , s{\'e}r. A; Gaevskaya, A.V., Rodjuk, G.N., Ecological characteristics of the parasitofauna of the macrourid Macrourus carinatus G{\"u}nther in the South Atlantic (1988) Nauchnye Doklady Vysshei Shkoli. Biologicheskie Nauki, (2), pp. 21-25. , In Russian; Gaevskaya, A.V., Rodjuk, G.N., Ecological-geographical characters of parasite fauna of muraenolepids (Pisces: Muraenolepidae) (1997) Ekologiya Morya, Kiev, 46, pp. 28-30. , In Russian; Gaevskaya, A.V., Rodjuk, G.N., Parukhin, A.M., Peculiarities and formation of the parasitofauna of the Patagonian toothfish Dissostichus eleginoides (1990) Biologiya Morya, Vladivostok, (4), pp. 23-28. , In Russian; Golvan, Y.J., La sp{\'e}cificit{\'e} parasitaire chez les acanthoc{\'e}phales (1957) First Symposium on Host Specificity among Parasites of Vertebrate S, Neuch{\^a}tel, pp. 244-254; Houston, K.A., Haedrich, R.L., Food habits and intestinal parasites of deep demersal fishes from the upper continental slope east of Newfoundland, northwest Atlantic Ocean (1986) Marine Biology, 92, pp. 563-574; Huffman, D.G., Kliever, R.G., Echinorhynchus canyonensis sp. n. (Acanthocephala) from Maynea californica (Osteichthyes: Zoarcidae) from the Monterey Submarine Canyon, California (1977) Proceedings of the Helminthological Society of Washington, 44, pp. 171-176; Kabata, Z., A new genus and species of trematode parasitic in Macrurus fabricii (Sundeval), a deep-sea fish (1961) Proceedings of the Zoological Society of London, 136, pp. 285-292; Kataoka, N., Momma, K., Helminthes from the salmonoid fish, Plecoglossus altivelis T. \& S (1934) Bulletin of the Japanese Society of Scientific Fisheries, 3, pp. 59-64; Kovalenko, L.M., Acanthocephala in fishes in Australia-New Zealand region (1986) Materialy Konferentsii. Xth Konferentsija Ukrainskogo Obshchestva Parasitologov, 1, p. 276. , Odessa, In Russian; Kovalenko, L.M., Echinorhynchus sebastolobi sp. n. (Acanthocephala, Echinorhynchidae) an intestinal parasite of sea perch (1986) Parazitologiya, 20, pp. 157-159. , In Russian; Linton, E., Parasites of fishes of the Woods Hole region (1901) Bulletin of the United States Fish Commission for 1899, pp. 407-492; Mamaev, Y.L., Helminths of fish in the Bering Sea (1965) Parasitic Worms of Domestic and Wild Animals, pp. 168-188. , Leonov, V.A. et al. (Eds) Vladivostok: Izdatel{\textquoteright}stvo Nauka (In Russian); Marcogliese, D.J., Aeginina longicornis (Ampipoda: Caprellidea), new intermediate host for Echinorhynchus gadi (Acanthocephala: Echinorhynchidae) (1994) Journal of Parasitology, 80, pp. 1043-1045; Nelson, J.S., (1994) Fishes of the World. (3rd Ed.), , New York: John Wiley and Sons Inc., 600 pp; Noble, E.R., Parasites and fishes in a deep-sea environment (1973) Advances in Marine Biology, 11, pp. 121-195; Parukhin, A.M., New species of thorny-headed worms from Palaeacanthocephala Meyer, 1931 from fishes of the Indian Ocean and South Atlantic (1985) Ekologiya Morya, Kiev, 20, pp. 26-29. , In Russian; Petrochenko, V.I., (1956) Acanthocephala of Domestic and Wild Animals, 1. , Moscow: Izdatel{\textquoteright}stvo Akademii Nauk SSSR. In Russian: English translation: Jerusalem: Israel Program for Scientific Translations Cat. No. 5901, 465 pp; Redkuzubova, O.I., Parasitological situation in the region of northern Labrador and northern Newfoundland (1976) Summaries of Reports from the 2nd All-Union Symposium of Parasites and Diseases of Marine Animals, pp. 53-54. , Gaevskaya, A.V (Ed.) Kaliningrad: AtlantNIRO, In Russian; Reimer, L.W., Investigations of shallow and deepwater prawns and fishes on parasites and a short note on biomass of plankton of the coast of the RR. of Mozambique (1984) Fisherei-Forschung Wissenschaftliche Schriftenreiche, 22, pp. 27-35; Rodjuk, G.N., New representatives of the genus Metechinorhynchus (Acanthocephala), parasites of fishes of the western Antarctic (1984) Zoologicheskii Zhurnal, 6, pp. 1893-1896. , In Russian; Rodjuk, G.N., New species of Acanthocephala of the genus Echinorhynchus (Echinorhynchidae) from the southwestern Atlantic (1986) Parazitologiya, 20, pp. 224-227. , in Russian; Rohde, K., (1993) Ecology of Marine Parasites. (2nd Ed.), , Wallingford: CAB International, 298 pp; Shostak, A.W., Dick, T.A., Szalai, A.J., Bernier, L.M.J., Morphological variability in Echinorhynchus gadi, E. leidyi, and E. salmonis (Acanthocephala: Echinorhynchidae) from fishes in northern Canadian waters (1986) Canadian Journal of Zoology, 64, pp. 985-995; Szuks, H., Die verwendbarkeit von Parasiten zur gruppentrennung beim Grenadierfisch Macrourus rupestris (1980) Angewandte Parasitologie, 21, pp. 211-214; V{\"a}in{\"o}l{\"a}, R., Valtonen, E.T., Gibson, D.I., Molecular systematics in the acanthocephalan genus Echinorhynchus (sensu lato) in northern Europe (1994) Parasitology, 108, pp. 105-114; Vassiliiad{\`e}s, G., Helminthes parasites des poissons de mer des c{\^o}tes du S{\'e}n{\'e}gal (1985) Bulletin de l{\textquoteright}Institute Fondamental d{\textquoteright}Afrique Noire, 44, pp. 78-99; Wayland, M.T., Gibson, D.I., Sommerville, C., Echinorhynchus trachyrinci n. sp. (Acanthocephala: Echinorhynchidae) from macrourid fishes of the northeast Atlantic (1997) Systematic Parasitology, 37, pp. 59-66; Yamaguti, S., (1963) Systema Helminthum. Vol. 5.Acanthocephala, 5. , New York: Interscience Publishers, 423 pp; Zdzitowiecki, K., Echinorhynchus nototheniae sp. n. (Acanthocephala) from nototheniid fishes from the environs of South Shetlands (Antarctic) (1986) Acta Parasitologica Polonica, 31, pp. 23-27; Zdzitowiecki, K., A Redescription of Echinorhynchus petrotschenkoi (Rodjuk, 1984) comb. n. (Acanthocephala) (1989) Acta Parasitologica Polonica, 34, pp. 173-180; Zdzitowiecki, K., Occurrence of acanthocephalans in fishes of the open sea off the South Shetlands and South Georgia (Antarctic) (1990) Acta Parasitologica Polonica, 35, pp. 131-142; Zdzitowiecki, K., Acanthocephala in fish in the Weddell Sea (Antarctic) (1996) Acta Parasitologica Polonica, 41, pp. 199-203; Zubchenko, A.V., Parasitic fauna of some Macrouridae in the northwest Atlantic (1981) Journal of Northwest Atlantic Fishery Science, 2, pp. 67-72; Zubchenko, A.V., Use of parasitological data in studies of the local groupings of rock grenadier, Coryphaenoides rupestris Gunner (1981) Abstracts. Symposium on Parasitology and Pathology of Marine Organisms, pp. 25-32. , Bauer, O.N. (Ed.) Leningrad; (1985) NOAA Technical Reports NMFS, 25, pp. 19-23. , In Russian: English translation }, month = {1999///}, pages = {93 - 101}, abstract = {

Echinorhynchus brayi n. sp. (Palaeacanthocephala: Echinorhynchidae) is described from Pachycara crassiceps (Roule) (Zoarcidae) from the Porcupine Seabight, Northeast Atlantic. The new species closely resembles E. canyonensis Huffman and Kliever, 1977, a parasite of a Pacific zoarcid, but has longer lemnisci, larger eggs and larger testes. E. brayi n. sp. can be readily differentiated from the ten other Echinorhynchus spp. recorded from deep-sea fishes (E. abyssicola, E. gadi, E. longiproboscis, E. malacocephali, E. melanoglaeae, E. muraenolepisi, E. petrotschenkoi, E. sebastolobi, E. trachyrinci and E. truttae), because it has fewer hooks per longitudinal row.

}, keywords = {Acanthocephala, Animals, Atlantic Ocean, Caelorinchus, Echinorhynchidae, Echinorhynchus, Echinorhynchus abyssicola, Echinorhynchus brayi, Echinorhynchus canyonensis, Echinorhynchus gadi, Echinorhynchus longiproboscis, Echinorhynchus malacocephali, Echinorhynchus melanoglaeae, Echinorhynchus muraenolepisi, Echinorhynchus petrotschenkoi, Echinorhynchus sebastolobi, Echinorhynchus trachyrinci, Echinorhynchus truttae, Erethizon dorsatum, Female, Fish Diseases, Helminthiasis, Animal, Male, marine environment, morphology, Pachycara crassiceps, Palaeacanthocephala, Parasitology, Perciformes, Pisces, Seawater, species difference, taxonomy, Zoarcidae}, isbn = {01655752 (ISSN)}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0033151889\&partnerID=40\&md5=e3ccb9c71d7cb8c7cc00873bbca87626}, author = {Wayland, M.T. and Sommerville, C. and Gibson, D.I.} } @article {41, title = {Taxonomic notes on Polyacanthorhynchus kenyensis (Acanthocephala: Polyacanthorhynchidae) from Lake Naivasha, Kenya.}, journal = {J Parasitol}, volume = {81}, year = {1995}, month = {1995 Feb}, pages = {76-9}, abstract = {

The original description of Polyacanthorhynchus kenyensis Schmidt and Canaris, 1967 from 2 species of fish in Lake Naivasha, Kenya was primarily based on measurements of 2 male cystacanths. That description is herein emended based on the availability of a larger number of immature worms of both sexes obtained from the freshwater teleosts Orechromis leucostictus, Tilapia zillii (new paratenic host records), and Micropterus salmoides. A secretory function for the apical organ is suggested.

}, keywords = {Acanthocephala, Animals, Bass, Female, Fish Diseases, Fresh Water, Helminthiasis, Helminthiasis, Animal, Kenya, Male, Microscopy, Electron, Scanning, Perciformes, Tilapia}, issn = {0022-3395}, author = {Amin, O M and Dezfuli, B S} } @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 {20, title = {The description of Paralongicollum nemacheili n. gen., n. sp. (Acanthocephala: Pomphorhynchidae) from freshwater fishes in Kazakh S.S.R.}, journal = {J Parasitol}, volume = {77}, year = {1991}, month = {1991 Feb}, pages = {26-31}, abstract = {

Paralongicollum nemacheili n. gen., n. sp. is described from Salmo gairdneri Richardson and Nemacheilus stoliczkai Steindacher in Lake Kul\&$\#$39;say in the basin of Lake Balkhash, Kazakh S.S.R. Its long uniformly cylindrical neck and nonfiliform proboscis distinguish it from the other 3 genera of the family. Tenuiproboscis Yamaguti, 1935, has a filiform proboscis. The neck of Pomphorhynchus Monticelli, 1905, has a bulb anteriorly, and that of Longicollum Yamaguti, 1935, is spirally twisted with expansions. A key to the genera of Pomphorhynchidae is provided. The relatively longer necks in juveniles than in larger worms probably enhance the establishment of new infections. A large proportion of worms had extensive body wall deformities. Longicollum sergenti (Choquette and Gayot, 1952) Golvan, 1969, is relegated to the new genus Paralongicollum.

}, keywords = {Acanthocephala, Animals, Cypriniformes, Female, Fish Diseases, Fresh Water, Helminthiasis, Helminthiasis, Animal, Male, Terminology as Topic, Trout}, issn = {0022-3395}, author = {Amin, O M and Bauer, O N and Sidorov, E G} }