... Specificity of Paulisentis missouriensis (Acanthocephala) in Creek Chub (Semotilus atromaculatus) in Southeastern Nebraska, U.S.A.Heather A. ... missouriensis (Acanthocephala) in the intestine of creek ch...
NBII National Biological Information Infrastructure
... thecatus and Neoechinorhynchus cylindratus (Acanthocephala) to Largemouth Bass (Micropterus salmoides)Dennis J. Richardson1 and Adel AbdoDepartment of Biological ... ...
... Specificity of Paulisentis missouriensis (Acanthocephala) in Creek Chub (Semotilus atromaculatus) in Southeastern Nebraska, U.S.A.. Comparative Parasitology ... ...
... bnickol@unlnotes.unl.edu) Corresponding author Abstract A dichotomous key to the species of Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) occurring ... ...
... such a task with Ward Cooper, then a Commissioning Editor at Cambridge University Press. Clive was not ... ...
The finding of Corynosoma cetaceum Johnston and Best 1942, as a parasite of Cephalorhynchus eutropia Gray, 1846, is reported. This constitutes the first record of this acanthocephala in a new host, as well a new geographic distribution. PMID:2152368
PubMed
... share most recent common ancestry with members of Rotifera (Lorenzen, 1985; Wallace and Colburn, 1989; Nielsen, 1995; ... Molecular evidence for Acanthocephala as a subtaxon of Rotifera. Journal of Molecu...
The key to Acanthocephala is the third in a series describing helminths found in waterfowl from throughout the world. The format includes a checklist of 52 species, a general key to families and genera, a guide to identification of species, and keys to ea...
National Technical Information Service (NTIS)
... Emigration of Leptorhynchoides thecatus (Acanthocephala) in Green Sunfish (Lepomis cyanellus)Kristen E. Richardson2, Dennis J. Richardson, Brent B. ... ceca and the anterior intestine of green sunfish, Le...
... of larval Acanthocephalus anguillae (Acanthocephala) in Asellus aquaticus ... of parasitic diseases. Parasitology Today 12:96�101. CrossRef, PubMed, ... ...
... New Echinorhynchid Species (Acanthocephala) From the European Eel, Anguilla anguilla, in Germany, with a Key to Species of ... n. sp. is described from the European eel, Anguilla anguilla (Linnaeus, 1758)...
... Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) from a Red-Eared Slider (Trachemys scripta elegans) in MexicoMichael A. Barger4, Vernon E. Thatcher, ... ...
Rotifers are free-living animals usually smaller than 1 mm that possess a characteristic wheel organ. Acanthocephalans (thorny-headed worms) are larger endoparasitic animals that use vertebrates and arthropods to complete their life cycle. The taxa Acanthocephala and Rotifera are considered separate phyla, often within the taxon Aschelminthes. We have reexamined the ...
... Nematomorpha, Priapulida and Loricifera) 18. Chaetognatha 19. Rotatoria (Rotifera) 20. Acanthocephala 21. Phoronida 22. Brachiopoda 23. Echinodermata ... Chaetognatha
... M. 1969. Life-cycles of helminth parasites using Gammarus lacustris as an intermediate host in a Canadian lake. ... ...
Rotatoria (Rotifera) 20. Acanthocephala 21. Phoronida 22. Brachiopoda 23. Echinodermata 24. Gnathostomulida 25. Hemichordata 26. Chordata ...
NASA Website
... Molecular evidence for Acanthocephala as a subtaxon of Rotifera. Journal of Molecular Evolution 43:287�292. CrossRef, ... ...
... canal opening past the wall into the receptacle cavity (Fig. 3). The PRS ... of the PRS. Optical observations at the same magnification showed the PRS ... ...
... seal, Leptonychotes weddelli caught on the Ongul Isl., Antartic. Research Bulletin of the Meguro Parasitological Museum 7: ... ...
(bobolink, grasshop- per sparrow, and eastern meadowlark [sturnella magna]). Martin (1998, 2001) discusses
E-print Network
... the hooks of the proboscis armature. The generic diagnosis of Neoncicola has been emended accordingly. Oligacanthorhynchus carinii ... and Meyer (1932) as Travassosia carinii. In the diagnosis of Oligacan...
... Pagination or Media Count : 52. Abstract : This is the third part of a continuing series on helminths reported in waterfowl (McDonald 1974, 1981). ...
DTIC Science & Technology
induced by the parasite Polymorphus paradoxus (Acanthocephala) in Gammarus lacustris (Crusta- cea). Canad
... L. H. 1951. The Invertebrates. Vol. III. Acanthocephala, Aschelminthes and Entoprocta. The Pseudocoelomate Bilateria McGraw-Hill Book ... ...
... populations of other acanthocephalan species such as Pomphorhynchus leavis Müller 1776, and Leptorhynchoides thecathus Linton, 1891, which ... ...
... Anolis cristatellus and Anolis stratulus), in the greater omentum of small Indian mongooses (Herpestes auropunctatus), and embedded ... infection Hemocoel (worker termites), subcutaneous nodules (anoles)...
... molecular data show they may be related to Rotifera and Acanthocephala, within the taxon Gnathifera. The phylogenetic ... be described. They show strong affinities with both Rotifera and Gnathostomulida (...
. Pomphorhynchus rocci (Acanthocephala: Echino- rhynchidea) from the freshwater drum, Aplodinotus grunniens
... 1984. Description of Heterosentis heteracanthus (Linstow, 1896) from Antartic fishes, and remarks of the taxonomic status of ... ...
... E. Rudolph, and E. González. 2006. Malacostráceos de ecosistemas acuáticos continentales en Chile: Una actualización necesaria. Gayana (Zool.) ... ...
It was shown that despite fundamental differences in the organization of the tegument of cystacanths and the cyst wall of cysticeroids, they have a number of features similar in localization, morphology, terms of formation, and functional value. These include a powerful outer layer of glycocalyx on the surface of the tegument, filling of the distal department with dense substance, and the presence ...
in Gammarus lacustris (Amphipoda) harboring cystacanths of Polymor- phus paradoxus (Acanthocephala behaviour induced by the parasite Polymor- phus paradoxus (Acanthocephala) in Gammarus lacustris (Crustacea/1615-9861(200209)2:9) Maynard, B. J., DeMartini, L. & Wright, W. G. 1996 Gammarus lacustris harboring Polymorphus paradoxus show
... Holmes, 1987) or are not apparent until a threshold is breached. Results from both high dose and low dose experiments suggest that an intensity >6 C. constrictum larvae is the threshold for H. azteca. Biol...
... from Green Sunfish (Lepomis cyanellus) to Largemouth Bass (Micropterus salmoides)Dennis J. Richardson1 and Kristen E. RichardsonDepartment of ... green sunfish, largemouth bass, Leptorhynchoides thecatus,...
... erroneously reported to be the red-eared slider, Trachemys scripta elegans, which does not occur in Tabasco. Examination ... species, Neoechinorhynchus schmidti from a red-eared slider, Trachemys scripta ...
... amphipod Pallasea quadrispinosa to water conditioned by burbot (Lota lota), the parasite's definitive host. In normal lake ... definitive host of E. borealis is primarily burbot (Lota lota) (Grabda-Kazubs...
... horizontally from the spectrometer, so mirrors of an overhead projector were used to redirect the monochromatic light ... associated with infection may potentially result in greater transmission. To addre...
... and the adult stage in the sea lion Otaria byronia (George-Nascimento and Carvajal, 1981; Oliva, 1982; ... Carvajal. 1981. Helmintos parásitos del lobo marino común Otaria flavescens en el Golfo de Arauco...
... uterine bell and vagina. AP = anterior proboscis, B = brain (cerebral ganglion), DLR = dorsal lateral retractor muscle, DPM = dorsal protrusal muscle, L = lemnisci, N = neck, PP = posterior proboscis, PPIM...
,6 Crepidostomum cooperi Lepomis gibbosus 1.8�37.5 � 5,6 Crepidostomum cornutum Ambloplites rupestris 35.0�58.6 � 5, growth and survival of Leptorhynchoides thecatus (Acanthocephala) during the prepatent period in Lepomis
... Collection (OLC) from Askania-Nova Black Sea Reserve, Ukraine (I.I. Schmalgausen Institute of Zoology, Kiev) and ... lancea (Westrumb, 1821) Golvan, 1956 from China and Ukraine (HWML 34561 and OLC); Sphae...
... Radwan�, Johan S. Mantuano Anchundia�, and Marcos A. Zambrano Alcivar�Institute of Parasitic Diseases, P.O. Box ... E. Radwan Johan S. Mantuano Anchundia Marcos A. Zambrano Alcivar Find In ...
... N. tenellus, his description of proboscis armature, lemnisci, reproductive system in both sexes, and eggs was either not ... pits on the proboscis, and details of the reproductive system in both sexes. Ke...
... small intestine of a single great-tailed grackle (Quiscalus mexicanus) from the state of Puebla, Mexico. Acquisition of ... small intestine of a single great-tailed grackle (Quiscalus mexicanus) in the di...
by the acanthocephalan Polymorphus paradoxus in Gammarus lacustris (Helluy & Holmes 1990); injections of octopamine and the clinging behaviour induced by the parasite Polymorphus paradoxus (Acanthocephala) in Gammarus lacustris architecture in the brain of Gammarus insensibilis (Crustacea: Amphipoda) S. Helluy1* and F. Thomas2 1
... Subsequent authors (Van Cleave, 1945a; Golvan, 1956, 1960; Cable and Linderoth, 1963; Amin and Sey, 1996), who ... Golvan, 1956; I. edmondsi Golvan, 1960; I. longispinus Cable and Linderoth, 1963; I. hete...
... These 3 sets of residuals were used as dependent variables in a multivariate analysis of covariance (MANCOVA). Also, ln-transformed CV was included as a fourth dependent variable. To assess whether the fac...
... determined by sampling at least 29 creek chubs, Semotilus atromaculatus, from Easly Creek, Richardson County, Nebraska, every month ... 1974, with increased size of host creek chubs Semotilus atromaculatu...
... of proboscis cuticle. Armature similar in both sexes. Neck well developed, robust, conical. Proboscis receptacle cylindrical, double walled, inserted at base of proboscis. Brain at about middle third of re...
... Cichlidae: Perciformes) in 7 different sites in Lake Malawi, Africa, during September 2005. New host records are ... spring. Keywords: Acanthogyrus (Acanthosentis) tilapiae, cichlids, mbuna, Lake Malawi, ...
The acanthocephalan subfamily Plagiohynchinae is reviewed. Prosthorhynchus Kostylew, 1915 is synonymized with Plagiorhynchus Luhe, 1911. Plagiorhynchus subg. n. and Prosthorhynchus subg. n. are proposed within the genus Plagiorhynchus. A report is made on...
... species have been described from the yellowbelly slider (Trachemys scripta scripta) and Florida redbelly turtle (Pseudemys nelsoni) in ... slider, Trachemys venusta (not the red-eared slider, Trachemys sc...
) Liver flukes (Trematoda) Intestinal parasites(Cestodaand Acanthocephala) Heartworms (Nematoda) Lungworms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Mesentericlymph nodes .......................... 10 Liver.Theright adrenalglandisdorsalto the vena cava along a liver lobe (Figs. 5 and 6) and is located a few centimeters anterior
... to waterfowl (10 species), cetaceans (5 species), the Gentoo penguin Pygoscelis papua (1 species), the sea otter ... ...
Page 1. Page 2. Page 3. Page 4. Page 5. Page 6. Page 7. Page 8. Page 9. Page 10. Page 11. Page 12. Page 13. Page 14. Page 15. Page 16. Page ...
The Index-Catalogue of Medical and Veterinary Zoology provides in-depth coverage of the world's literature on human and animal parasitology. It covers parasitic protozoa, helminths, certain arthropods (ticks, mites, insects, copepods, isopods, linguatulid...
... the previous parasite infection. MATERIALS AND METHODS Four medical treatment regimes and one surgical treatment were attempted with various degrees of success. Because no anthelmintic is labeled for ......
Echinorhynchus salmonis Muller was the dominant intestinal parasite infecting 14 species of southwestern Lake Michigan fishes. New host records are reported for chinook salmon, Oncorhynchus tshawytscha, and slimy sculpin, Cottus cognatus. Infections were ...
... and abundance of Rhadinorhynchus pristis (Acanthocephala, Rhadinorhynchidae) in chub mackerel, Scomber japonicus (Pisces, Scombridae) from Madeira Island. Acta Parasitologica ... ...
... Kolmogorov�Smirnov test of similarity of distribution of helminths in the 2 populations of fishes indicated that ... fish were examined, and cysts of a parasitic helminth were noticed in the mesenteries o...
... recently it was found in the intestine of Grus americana (whooping crane) (Richardson and Font, 2006). Species of ... White ibis, Eudocimus albus (L.), and whooping crane, Grus americana (L.) (definitive ...
... EXHIBITED BY LEPTORHYNCHOIDES THECATUS (ACANTHOCEPHALA) IN GREEN SUNFISH (LEPOMIS CYANELLUS)Dennis J. Richardson* and Brent B. NickolSchool of ... 1974). The acanthocephalan Leptorhynchoides thecatus and ...
... Neoechinorhynchus cristatus was collected from the western sucker, Catostomus macrocheilus Girard, in Lake Washington (Lynch, 1936). Lake Washington ... New species of Neoechinorhynchus from the western s...
... ring-like distribution of sensory structures. 12. Sensory structures of bursa; note elevated surface and shape. enlarge figure Figure 13�20 ... ...
... larva cystacantha (Acanthocephala) de la cavidad general de Chasmagnathus granulata Dana, 1851 Ciclo evolutivo y descripción de Falsificollis chasmagnathi ... ...
... male; (6) posterior end of female; (7) teased reproductive system dissected from a male worm; (8) entire male; ( ... 227) long by 72�96 (89) wide. Male Reproductive system reaches from posterior end to ...
... L. podicipinus. Previously known from Argentina (Lajmanovich and Ferrato, 1995), Brazil (Hartwich, 1956), Peru (Tantale�n, 1976), and ... area influenced by the Rio Paran� (Lajmanovich and Ferrato, 1995)....
... the proboscis receptacles; and a pre-equatorial male reproductive system. This is the first record of a Heterosentis ... 69.9 ± 18.7; n = 6) wide. Whole reproductive system post-equatorial. Testes equal, ...
... sp. is described from a yellow-bellied slider (Trachemys scripta scripta) and a Florida red-bellied turtle (Pseudemys ... peninsular Florida. Keywords: Neoechinorhynchus moleri, yellow-bellied slider, Tra...
A total of 37 silver pomfret (Pampus argenteus), 67 greasy grouper (Epinephelus tauvina), 52 red snapper (Lutjanus coccineus), and 56 silver croaker (Otolithes argenteus) were examined during the period form October 2001 to September 2002 for the purpose of studying the helminth parasites including Monogenea, Digenea, Cestoda, Nematoda and Acanthocephala. All examined fishes ...
The monophyletic origin of Spiralia within the metazoan tree of life is supported by many large-scale phylogenomic data. While there is now substantial molecular evidence for Lophotrochozoa being a monophyletic taxon within Spiralia, the phylogenetic affiliations of many other spiralian phyla remain unclear. Here we focus on the question of a monophyletic taxon Gnathifera, which was originally ...
Phylogenetic analyses based on 79 ribosomal proteins of 38 metazoans, partly derived from 6 new expressed sequence tag projects for Ectoprocta, Entoprocta, Sipuncula, Annelida, and Acanthocephala, indicate the monophyly of Bryozoa comprising Ectoprocta and Entoprocta, 2 taxa that have been separated for more than a century based on seemingly profound morphological differences. ...
Information on species of parasitic helminths native to Poland is provided by the Pasozytnicze helminty Polski. Gatunki. Zywiciele. Bia?e Plamy. Until the middle of 2007, there were 1205 species of recorded helminths including 126 species of Monogenea, 338 of Trematoda (Digenea), 279 of Cestoda, 427 of Nematoda and 35 of Acanthocephala. They represented 32.9% of the species ...
Reptiles were known to serve as paratenic hosts for Centrorhynchus (Acanthocephala: Centrorhynchidae) in Korea, but the infection course in experimental animals was not elucidated yet. In this study, the tiger keelback snakes (Rhabdophis tigrinus) were collected and digested with artificial pepsin solution, and the larvae of Centrorhynchus were recovered from them. Then, the ...
PubMed Central
Cystacanths of Oncicola venezuelensis (Acanthocephala: Oligacanthorhynchidae) were discovered in the hemocoel of Caribbean termites (Nasutitermes acajutlae) on St. Thomas and St. John islands in the U.S. Virgin Islands. In addition to occurring in the insect intermediate host, cystacanths were present in subcutaneous nodules of lizards (Anolis cristatellus and Anolis ...
A new species of Acanthocephala, a parasite of local Naemacheilus stoliczkai, was recorded from Salmo gairdneri after 9 years of its introduction into mountain water bodies of Tien Shan. Gammarus lacustris serves as an intermediate host. Dynamics of infection of trout for 9 years is shown. PMID:1299803
Data on fish infestation by parasites in the Umbozero Lake are given. 90 species of parasites were identified including 16 species of Myxosporea, 2 Suctoria, 18 Peritricha, 12 Monogenea, 13 Cestoda, 18 Trematoda, 5 Nematoda, 2 Acanthocephala, 2 Hirudinea, and 2 species of Crustacea. Character of parasites' distribution in fishes of this lake and ecological peculiarities in the ...
Three hundred and seventy-five acanthocephalans, Moniliformis clarki, were removed from the small and large intestines of a gray squirrel from Arkansas County, Arkansas (USA). This is the first report of M. clarki from Arkansas. Enteric lesions, including distension, perforating ulcers, enteritis, crypt hypertrophy, goblet cell hyperplasia, and occlusions of the intestinal tract were observed, ...
Cyclopoid copepod Pike, Esox lucius Eubothrium sp. Eubo Cyclopoid copepod Salmonid fish, or burbot Lota lota Pike, Esox lucius, and burbot, Lota lota ACANTHOCEPHALA Corynosoma semerme Csem amphipod, Monoporeia�2 12 0.089 Lota lota (Bothnian Bay, n � 83) 47.0 (31�72) Diphyllobothrium dendriticum 21 1�12 73 -0
evasive behavior in Gammarus lacustris (Amphipoda) harboring cystacanths of Polymorphus paradoxus acanthocephalan parasite, Pomphorhynchus laevis, in two species of amphipods, Gammarus pulex and Gammarus roeseli; Behavioural modi�cations; Favourisation; Biological invasions; Freshwater Crustacea; Gammarus pulex; Gammarus
(Acanthocephala) on colour and behaviour of Gammarus lacustris. Nature 238, 333. (doi:10.1038/238333a0) Hoffman, G 1940). III Factors involved in the behavioural changes of the Gammarus, intermediate hosts and predator. & Thomas, F. 2005 Ecology of populations parasitically modified: a case study from a gammarid (Gammarus
Fifteen identified species and 13 genera of endoparasitic helminths (Digenea, Eucestoda, Nematoda, Acanthocephala) were collected from 207 white crappie and 189 channel catfish, June 1967 through September 1968, from a 3,300-acre turbid reservoir in north...
... wide. Lemnisci 2,584�4,080 (3221) long. Reproductive system 730�871 (810) long; uterus with ligament strands ... with 4,000�4,358, and the male reproductive system extends anteriorly, not being restricted...
with organisms of the following species: Hymenolepis diminuta, Ascaris suum, Trichinella spiralis, Terebratalia Accession No. Ascaris suum Nematoda X54253 Necator americanus Nematoda AJ417719 Caenorhabditis elegans, Caenorhabditis elegans and Ascaris suum. Genetics 130:471�498 Posada D, Crandall KA (1998) Modeltest: Testing
paradoxus (Acanthocephala) in Gammarus lacustris (Crustacea). Canadian Journal of Zoology 68, 1214�1220. Hindsbo, O. (1972) Effects of Polymorphus (Acanthoce- phala) on colour and behaviour of Gammarus lacustris changes in behavior and color make Gammarus pulex more prone to fish predation. Ecology 78, 1098
... Studies on the vitamin requirements of tapeworms. J. Parasit 30:229�236. CrossRefAndrewartha, H. G. and L. ... upon singly established Hymenolepis diminuta in rats. Exp. Parasit 1:46�59. CrossRefBrian, M....
of Gammarus lacustris. Nature, London 238, 333. HOLMES, J. C. (1961). Effects of concurrent infections of the Acanthocephala. Co- invasion of Gammarus pulex L. by Echinorhynchus truttae Schrank, 1788 and Polymorphus minutus). Parasite- induced changes in behavior and color make Gammarus pulex more prone to fish predation. Ecology
,6 Crepidostomum cooperi Lepomis gibbosus 1.8�37.5 � 5,6 Crepidostomum cornutum Ambloplites rupestris 35.0�58.6 � 5, growth and survival of Leptorhynchoides thecatus (Acanthocephala) during the prepatent period in Lepomis cyanellus. J. Parasitol. 68, 686�690. R. Poulin / International Journal for Parasitology 36 (2006) 877
, and the clinging behaviour induced by the parasite Polymorphus para- doxus (Acanthocephala) in Gammarus lacustris and behaviour of Gammarus lacustris. Nature 238:333 Howard RD, Minchella DJ (1990) Parasitism and mate competi Gammarus pulex more prone to �sh predation. Ecology 78:1098�1104 Beer CG (1959) Notes on the behaviour
The present work described helminth parasites of curimbat�, Prochilodus lineatus Valenciennes, 1836 from Volta Grande Reservoir, MG, Brazil. Eighteen fishes with average 46.7 +/- 1.1 cm length and 1,674.8 +/- 75.6 g weight were collected. Of the analysed fishes, 15 were parasitized with acanthocephalans in the intestine, showing a prevalence of 83.3%. The helminth was identified as ...
The present work studied the prevalence and histopathology of Neoechinorhynchus curemai Noronha, 1973 (Acanthocephala; Neoechinorhynchidae) from curimbat�, Prochilodus lineatus Valenciennes, 1836. Eighteen fishes with averages of 46.7 +/- 1.1 cm length and 1,674.8 +/- 75.6 g weight were collected with net, bimonthly from December 1995 thru December 1996 in the hydroelectric ...
Exotic reptiles originating from the wild can be carriers of many different pathogens and some of them can infect humans. Reptiles imported into Slovenia from 2000 to 2005, specimens of native species taken from the wild and captive bred species were investigated. A total of 949 reptiles (55 snakes, 331 lizards and 563 turtles), belonging to 68 different species, were examined for the presence of ...
Representatives of Leptorhynchoides thecatus (Acanthocephala) inhabit ceca of green sunfish but cannot survive in the anterior intestine. The influence of elevated cecal protein concentrations, pH, and amounts of lumenal materials on the microhabitat specificity of L. thecatus was investigated. An attempt was made to alter the distribution of worms in starved fish, in fish of ...
Competition between parasites within a host can influence the evolution of parasite virulence and host resistance, but few studies examine the effects of unrelated parasites with conflicting transmission strategies infecting the same host. Vertically transmitted (VT) parasites, transmitted from mother to offspring, are in conflict with virulent, horizontally transmitted (HT) parasites, because ...
The results of a parasitological study of the burbot Lota Iota L. inhabiting the Kola region are presented. 51 species of parasite were found on burbot in 16 waterbodies belonging to the White Sea and Barents Sea basins (Muxosporea - 7, Suctoria - 1, Peritricha - 6, Monogenea - 1, Cestoda - 6, Trematoda - 13, Nematoda - 6, Acanthocephala - 5, Hirudinea - 3, Bivalvia - 1 and ...
Two new species of Acanthocephala of the genus Echinorhynchus were found and described from fishes of Falkland-Patagonia and South Georgia Island area. E. longiproboscis sp. n. from Dissostichus eleginoides and Macrourus holotrachys intestines differs from its close relative E. gadi (Zoega in M�ller, 1776) in proboscis armature and the proboscis to the body length ratio. E. ...
The complete list of helminthes parasitizing canids in Azerbaijan is given; ways of formation of the canids' helminthofauna in Azerbaijan are reconstructed. As a result of our study, 42 helminth species were recorded; 25 of them parasitize jackals, 16 parasitize wolfs, and 39 species were found in foxes. The helminthofauna includes 5 species of Trematoda, 14 species of Cestoda, 1 species of ...
The integument of the acanthocephalans Echinorhynchus gadi, Acanthocephalus lucii, Polymorphus minutus and Macracanthorhynchus hirudinaceus have been investigated by stereoscan and transmission electron microscopy. The absorptive surface is considerably increased by invaginations of the outer plasma membrane (pore canals and vesicles). The rate of this enlargement has been calculated using ...
Paracanthocephaloides kostylewi (Meyer, 1932), a rare parasite of the common sole Solea solea, previously placed in the Arhythmacanthidae, is transfered to the genus Solearhynchus de Buron & Maillard, 1985 of the family Echinorhynchidae as Solearhynchus kostylewi (Meyer, 1932) new comb., because its proboscis is armed by a single type of hooks, the posterior hook in each row is pinlike and ...
Two species of anurans from Colombia, South America, Atelopus spurrelli and Dendrobates histrionicus, were examined for helminths. A. spurrelli was found to harbor three species of Nematoda, adults of Cosmocerca podicipinus and larvae of Physocephalus sp. and Porrocaecum sp. D. histrionicus was found to harbor, in addition to C. podicipinus, Physocephalus sp. and Porrocaecum sp. and cystacanths of ...
Thirty-three tree swallows, Iridoprocne bicolor, and 5 violet-green swallows, Tachycineta thalassina, from the eastern slope of the Rocky Mountains of northern Colorado were examined for helminths. Six species were found: Diplotriaena obtusa, Acuaria coloradensis n. sp. (Nematoda); Vitta magniuncinata, Angularella audubonensis (Cestoda); Plagiorchis maculosus (Trematoda); Mediorhynchus papillosus ...
BackgroundThe Syndermata (Rotifera+Acanthocephala) is one of the best model systems for studying the evolutionary origins and persistence of different life styles because it contains a series of lineage-specific life histories: Monogononta (cyclic parthenogenetic and free-living), Bdelloidea (entirely parthenogenetic and mostly benthic dweller), Seisonidea (exclusively ...
The Aschelminthes is a collection of at least eight animal phyla, historically grouped together because the absence of a true body cavity was perceived as a pseudocoelom. Analyses of 18S rRNA sequences from six Aschelminth phyla (including four previously unpublished sequences) support polyphyly for the Aschelminthes. At least three distinct groups of Aschelminthes were detected: the Priapulida ...
Loriciferans, cycliophorans and micrognathozoans are amongst the latest groups of animals to be discovered. Other than all being microscopic, they have very different body plans and are not closely related. Loriciferans were originally assigned to the Aschelminthes. However, both new molecular and ultrastructural researches have shown that Aschelminthes consist of two unrelated groups, ...
The total number of eggs (absolute fecundity) and the number of eggs per 1 gr of body weight (relative fecundity) of Echinorhynchus borealis Linstow, 1901, E. salmonis salmonis Muller, 1784, E. s. baicalensis Bogolepova, 1957 and E. truttae Schrank, 1788 from the Baikal lake was examinide. The absolute fecundity decreases in the row or species: E. borealis (26,200 eggs), E. s. salmonis (110,113), ...
Species characters in Mediorhynchus are discussed, and a consistent method of describing hook arrangement, longitudinal rows, is proposed. Mediorhynchus papillosus Van Cleave 1916, and M. orientalis Belopol'skaya 1953 are redescribed, and M. edmondsi sp. n. is described from Palawan. The new species is most similar to M. rodensis Cosin 1971 in armature, but differs from it in proboscis shape and ...
At least 76 species of parasites have been reported from raccoons. These include 4 species of protozoa, 27 nematodes, 20 trematodes, 7 cestodes, 3 acanthocephala, and 15 arthropods. In many cases these represent single reports. In other cases some of the parasites are known to be of frequent occurrence and broad geographical range on the basis of several surveys that have ...
USGS Publications Warehouse
Lead concentrations in the tissues of perch and its parasites were determined as mg/kg dw. Lead was found at higher concentrations in the acanthocephalans (11.56) than in different tissues (liver, gonads and muscle with skin and bone) of perch. With respect to fish tissues, the highest concentrations of lead were present in the liver (1.24), followed by the gonads (0.57) whereas the lowest ...
A total of 55 domestic cats (Felis catus f. domestica) and one wild (Bengal) cat (Prionaluirus bengalensis) from the Vientiane Province, central Laos, were examined for helminth parasites with emphasis given to potential human parasites. The following species were found (parasites infective to man marked with an asterisk): Opisthorchis viverrini, Haplorchis pumilio, H. taichui, H. yokogawai, ...
This paper represents the first documentation and description of Pachysentis canicola cystacanths and the first report of a Pachysentis sp. in a paratenic reptile from the Americas. The western diamondback rattlesnake (Crotalus atrox) is also listed as a new host for tetrathyridia of the cyclophyllidean cestode (Mesocestoides sp.) and for the cystacanths of the oligacanthoryhynchid acanthocephalan ...
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 ...
The physiological mechanisms by which parasites with complex life cycles manipulate the behaviour of their intermediate hosts are still poorly understood. In Burgundy, eastern France, the acanthocephalan parasite Pomphorhynchus laevis inverses reaction to light in its amphipod host Gammarus pulex, but not in Gammarus roeseli, a recent invasive species. Here, we show that this difference in ...
Examination of bald eagles (Haliaeetus leucocephalus) collected from several locations in North America contributed new information concerning the acanthocephalan fauna of this host. Representatives of Arythmorhynchus brevis, representing a new host record, were collected from eagles in Florida, New Hampshire, and Wisconsin. Plagiorhynchus sp. was collected from an eagle in Florida. Corynosoma ...
Oligacanthorhynchus nickoli n. sp. (Acanthocephala: Oligacanthorhynchidae) is described from the great-horned owl, Bubo virginianus (Gmelin, 1788) (type host), and red-tailed hawk, Buteojamaicensis (Gmelin, 1788), collected in central Arizona. The new species is most similar to Oligacanthorhynchus iheringi and Oligacanthorhynchus minor, but it differs from all congeners ...
Adults of Rhadinorhynchus ornatus Van Cleave, 1918 were collected from the small intestine of skipjack tuna, Katsuwonus pelamis (Linnaeus), in the high seas of the Pacific Ocean off the west coast of South America (new parasite locality record) and described using optical microscopy and a scanning electron microscope (SEM). Our specimens were somewhat comparable to those described from North ...
The numbers, distribution in the small intestine, sexual development and growth (dry weight) of 5-week-old Moniliformis dubius (Acanthocephala) were investigated experimentally in adult, female CFHB rats fed on theoretically isoenergetic diets containing known amounts of fructose in combination with either maize-oil fatty acids or maize oil and two concentrations of casein. ...
The morphology of the males of Neoechinorhynchus schmidti (Acanthocephala: Neoechinorhynchidae) is unknown, because this species was described based exclusively on females. However, recently we collected 2 common slider turtles Trachemys scripta in Centla swamps, Tabasco, Mexico, parasitized by 27 specimens of an acanthocephalan whose females were morphologically identical to ...
A study was conducted to determine the influence of environmental change on an endoparasite, Echinorhynchus gadi (Acanthocephala) of Atlantic cod (Gadus morhua) over a 30-year period off the coast of Labrador in the north-western Atlantic, North Atlantic Fisheries Organization subareas 2J-3K. Cod, once an abundant fish species that had been commercially exploited for many ...
The introduction of exotic species can increase the risk of extinction of native species through the introduction of new diseases, predation or resource competition. The marmosets Callithrix penicillata and Callithrix jacchus and hybrids of these two species have been introduced to privately owned forests in the lowland Atlantic forest of the Rio de Janeiro State in Brazil, the region of ...
Based on a study of the larvae from two helminth species parasitizing the crab Cyrtograpsus angulatus Dana, 1851 (Microphallus szidati Martorelli, 1986 and Falsifilicollis chasmagnathi Holcman-Spector et al., 1977), from Mar chiquita lagoom (Argentina) together with the analyses of their life cycles and rates of prevalence, intensity and association coefficient (compared in definitive and ...
The aim of this study carried out from December 2000-November 2001 was to determine the endoparasites of pike (Esox lucius L., 1758) inhabiting the I?ikli Dam Lake. A total of 160 samples were caught and investigated parasitologically. Bathybothrium rectangulum (Cestoda), Raphidascaris acus, Camallanus truncatus (Nematoda) and Neoechinorhynchus rutili (Acanthocephala) were ...
Between April 2003 and November 2006 a total of 191 individuals of the predominantly herbivorous fish species nase Chondrostoma nasus (L. 1758) were examined for parasites from six river sites in Austria. The following parasite taxa were recovered - Ciliata: Trichodina sp., Chilodonella piscicola, Ichthyophthirius multifiliis; Myxozoa: Myxobolus muelleri (cysts) and Myxobolus sp. (cysts); ...
Reexamination of the type series of Centrorhynchus wardae Holloway, 1958, and Centrorhynchus conspectus Van Cleave and Pratt, 1940, revealed no consistent difference between the 2 purported species; therefore, C. wardae is considered a junior synonym of C. conspectus. Specimens from additional collections are consistent with this view and provided adequate material for redescription of the ...
The round goby Neogobius melanostomus is a bottom-dwelling fish native for the Ponto-Caspian basin, which started to colonize the Baltic Sea since 1991. The parasites of this fish species in the southwestern Baltic region are studied for the first time. The round goby in the SW Baltic Sea was infected with 12 parasite species: 1 species of Microsporidia, 1 species of Monogenea, 1 of Cestoda, 3 ...
The growth and eventual size of larval helminths in their intermediate hosts presumably has a variety of fitness consequences. Therefore, elucidating the proximate factors affecting parasite development within intermediate hosts should provide insight into the evolution of parasite life histories. An experimental infection that resulted in heavy intensities of an acanthocephalan (Acanthocephalus ...
Porrorchis nickoli n. sp. is described from the intestine of the gray four-eyed opossum Philander opossum (type host), the Virginia opossum Didelphis virginiana, the common opossum Didelphis marsupialis, and the white-nosed coati Nasua narica. Hosts were collected in southeastern Mexico in the Los Tuxtlas region of the state of Veracruz (type locality) and in the states of Tabasco and Chiapas. ...
Pomphorhynchus omarsegundoi sp. n. from Gymnotus carapo Linnaeus from the Paran� River basin in Argentina is described in this paper. The new species is characterised by having a small body; a non-spirally twisted long neck forming an inconspicuous asymmetrical bulb more developed dorsally than ventrally; a proboscis almost cylindrical, with 11 to 12 longitudinal rows of 5 to 7 (usually 6) hooks ...
The lake brown trout is a salmonids fish regarded as a stationary form of the migratory trout. Within 2003-2004, 31 lake brown trout (Salmo trutta lacustris L.) from Lake Wdzydze (Poland), were examined for the presence of parasites following commonly used procedures. The parasites found represented Digenea: Diplostomum sp., Posthodiplostomum cuticola (Nordmann, 1832), Sphaerostomum globiporum ...
One hundred slimy sculpins, Cottus cognatus (Cottidae), collected from Six Fathom Bank Lake Trout Refuge in Lake Huron in June 1995 were examined for parasites. A total of 17 parasite species (3 Digenea, 2 Monogenea, 3 Cestoda, 3 Nematoda, 2 Acanthocephala, 2 Ciliophora, 1 Microspora, and 1 Myxosporea) were found to infect sculpins. Tetracotyle sp. had the highest ...
Forty-four of 50 arctic foxes (Alopex lagopus) in Iceland harbored 15 species of intestinal parasites, including Protozoa: Eimeria sp. or Isospora sp. (in 4%); Trematoda: Cryptocotyle lingua (24%), Plagiorchis elegans (4%), Brachylaemus sp. (12%), Tristriata sp. (10%), and Spelotrema sp. (8%); Cestoda: Mesocestoides canislagopodis (72%), Schistocephalus solidus (2%), and Diphyllobothrium ...
A total of 136 fishes, representing 9 species (perch, Perca fluviatilis L.; pike, Esox lucius L.; European eel, Anguilla anguilla (L.); common bream, Abramis brama (L.); roach, Rutilus rutilus (L.); tench Tinca tinca (L.); European whitefish, Coregonus lavaretus (L.); vendace, Coregonus albula (L.); and zander, Sander lucioperca (L.)), from Lake Miedwie were studied within 1997-1999. The ...
This study describes the parasitic fauna of Oxydoras niger from the Coari Lake, tributary of the medium Solim�es River, State of Amazonas, Brazil, and the relationship between the number of Monogenoidea and the condition factor. From a total of 27 examined fish, 70.3% were parasitised by at least one parasite species as follows: Ichthyophthirius multifiliis (Protozoa), Chilodonella sp. ...
Hypoechinorhynchus magellanicus Szidat, 1950 (Acanthocephala: Arhythmacanthidae) is redescribed based on specimens collected from a sub-Antarctic notothenioid fish, Champsocephalus esox (G�nther). The host was caught in the Beagle Channel (Magellanic sub-region). H. magellanicus has a trunk with an antero-dorsal curvature, a spherical proboscis, spines on the anterior region ...
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 ...
Parasitological analysis of 237 Menticirrhus ophicephalus, 124 Paralonchurus peruanus, 249 Sciaena deliciosa, 50 Sciaena fasciata and 308 Stellifer minor from Callao (Per�) yielded 37 species of metazoan parasites (14 Monogenea, 11 Copepoda, 4 Nematoda, 3 Acanthocephala, 1 Digenea, 1 Aspidobothrea, 1 Eucestoda, 1 Isopoda and 1 Hirudinea). Only one species, the copepoda ...
Examination of 1905 arthropods from a swamp and surrounding pasture in sothern Louisiana revealed larval specimens of Mediorhynchus centurorum in 8 of 228 woodroaches, Parcoblatta pensylvanica, but in no other species. The life cycle was confirmed by feeding eggs of M. centurorum to laboratory-reared woodroaches. Cystacanths later recovered from the woodroaches developed into mature worms when ...
The intestinal helminth fauna of river otters, Lutra canadensis, from the Pacific Northwest was characterized by low species richness and intensity of infection. River otters from the lower Columbia River (n = 23) were infected with 9 species of helminths (83% prevalence); those from a relatively undisturbed reference area near the headwaters of the Trask and Wilson rivers on the Oregon coast (n = ...
Trophically transmitted parasites often alter their intermediate host's phenotype, thereby predisposing the hosts to increased predation. This is generally considered a parasite strategy evolved to enhance transmission to the next hosts. However, the adaptive value of host manipulation is not clear as it may be associated with costs, such as increased susceptibility to predators that are ...
Fish larvae of 'corvinas' (Pachyurus bonariensis and Plagioscion ternetzi) from Sinh� Mariana Lagoon, Mato Grosso State, were collected from March 2000 to March 2004, in order to determine the parasitic fauna of fishes. Larvae from the two species were parasitized by the same endoparasites: Contracaecum sp. Type 2 (larvae) (Nematoda: Anisakidae) in the mesentery and Neoechinorhynchus ...
Seven species of fishes, 6 species of mollusks, 1 species of crab, and 1 species of shrimp were collected from 12 natural freshwater sites from 5 provinces: Lumpang, Phrae, Phayao, Chiang Rai and Chiang Mai during the Rainy season of 2000. Fishes, Channa striatus, Dermogenus pusillus, Oxyeleotris marmoratus, Trichogaster trichopterus and Trichopsis vittatus were examined for helminths and 34.69% ...
The helminth parasite fauna of the oceanic horse mackerel Trachurus picturatus Bowdich 1825, caught off the Madeira Islands was composed of six different taxa. Prevalence and abundance of larval Anisakis sp. (Nematoda: Anisakidae) and Nybelinia lingualis (Trypanorhyncha: Tentaculariidae), the most common parasite taxa, were 24.3%, 0.9 and 37.9%, 0.7, respectively. Bolbosoma vasculosum ...
Thirteen species of helminth parasites were recovered from six species of charadriid shorebirds (Aves: Charadriiformes) from Belize: the ruddy turnstone, Arenaria interpres, the snowy plover, Charadrius alexandrinus, the semipalmated plover, C. semipalmatus, the killdeer, C. vociferus, the white-rumped sandpiper, Calidris fuscicollis, and the black-bellied plover, Pluvialis squatarola. Cestode ...
Intermediate host exploitation by parasites is presumably constrained by the need to maintain host viability until transmission occurs. The relationship between parasitism and host survival, though, likely varies as the energetic requirements of parasites change during ontogeny. An experimental infection of an acanthocephalan (Acanthocephalus lucii) in its isopod intermediate host (Asellus ...
Echinorhynchus hexagrammi Baeva, 1965 is redescribed on the basis of specimens collected from the saffron cod Eleginus gracilis (Tilesius) in Akkeshi Bay (western North Pacific) off Hokkaido, Japan. Eighteen museum specimens deposited as E. salmonis M�ller, 1784 from Japanese coastal waters were also re-examined and re-identified as E. hexagrammi. Hexagrammos stelleri Tilesius, Hemitripterus ...
Neoechinorhynchus idahoensis is described from Catostomus columbianus caught in the Salmon River, Stanley Basin, Idaho. The new species is closest to Neoechinorhynchus venustus Lynch, 1936, but is distinguished from it by its smaller and variably structured eggs, anterio-dorsal trunk hump, bent and posteriorly notched proboscis receptacle, and larger proboscis, proboscis receptacle, and hooks. It ...
Polymorphus spindlatus n. sp. is described from the black-crowned night heron, Nycticorax nycticorax, in Lake Titicaca, Peru. It is distinguished from all 27 known species of the subgenus Polymorphus by its spindle-shaped proboscis and its trunk shape, the anterior 2/3 of which is ovoid, tapering into a tubular posterior end. It resembles Polymorphus brevis (=Arhythmorhynchus brevis), which is, ...
Pairs of the acanthocephalan Leptorhynchoides thecatus from laboratory infections were observed copulating at 21 days, 5 wk, and 12 wk postinfection (PI) in green sunfish, Lepomis cyanellus. Additionally, copulating pairs of worms from natural infections were observed. In each instance of paired males and females, the male was in 1 pyloric cecum of the fish and the female in another. Each had its ...
The uptakes of 14C-glucose, -2-deoxyglucose, -mannose, -N-acetylglucosamine, -3-0-methylglucose, -fructose, and -galactose by female Moniliformis dubius were nonlinear, saturable functions of hexose concentration. Kinetic and inhibition studies indicated that glucose and 2-deoxyglucose were absorbed via a single common transport locus. Mannose, N-acetylglucosamine, 3-0-methylglucose, fructose, and ...
Distribution of Leptorhynchoides thecatus (Acanthocephala: Rhadinorhynchidae) among the pyloric caeca and the relationship between site and rate of maturation were studied in laboratory infections of 10, 25 and 40 cystacanths fed to green sunfish, Lepomis cyanellus. After 1 week fish fed at each intensity had significantly different numbers of worms. By the 3rd week ...
Acanthocephaloides irregularis n. sp. (Arhythmacanthidae) is described from four species of marine fishes in the Gulf of Odessa and Sukhyi Lyman, Ukrainan Black Sea waters, making it the tenth species of the genus. The hosts are the combtooth blenny Parablennius zvonimiri (Kolombatovic) (Blenniidae), the mushroom goby Ponticola eurycephalus (Kessler) (Gobiidae), the tubenose goby Proterorhinus ...
Amphibians of 24 species were surveyed for acanthocephalans in 4 nature reserves in 2 Chinese provinces during 2004�2006. Pseudoacanthocephalus bufonis (Echinorhynchida) occurred in both nature reserves in Guangxi Province. In the Jing Xi County Provincial Nature Reserve, P. bufonis infected 36 of 62 amphibians at a mean intensity of 9.9. Less than 250 km away, at Shiwandashan National Nature ...
Abstract A road-killed feral house cat from the U.S. Virgin Islands was parasitized by 87 acanthocephalans of the species Oncicola venezuelensis Marteau, 1977. The finding allowed the documentation of a suitable definitive host for the species in the Virgin Islands and permit a more comprehensive description of the species, including the first of fully mature adults and completely formed eggs. ...
In benthic habitats, predators can generally not be detected visually, so olfaction may be particularly important for inducing anti-predation behaviors in prey organisms. Manipulative parasites infecting benthic hosts could suppress these responses so as to increase the probability of predation and thus trophic transmission. We studied how infection with the acanthocephalan Echinorhynchus borealis ...
Within 2001-2002 a total of 621 eel Anguilla anguilla (L., 1758) (488 from the Vistula Lagoon and 133 from the Puck Bay) were examined. Fifteen parasite taxa were recovered: Pseudodactylogyrus anguillae (Yin et Sproston, 1948), Brachyphallus crenatus (Rudolphi, 1802), Deropristis inflata (Molin, 1859), Diplostomum spp., Bothriocephalus claviceps (Goeze, 1782), Proteocephalus macrocephalus ...
Manipulative parasites are known to alter the spatial distribution of their intermediate hosts in a way that enables trophic transmission to definitive hosts. However, field data on the ecological implications of such changes are lacking. In particular, little is known about the spatial coexistence between infected prey and dead-end predators after a parasite-induced habitat shift. Here, we used ...
