02694nas a2200277 4500008004100000022001400041245023800055210006900293260001300362300001000375490000700385520178000392653001902172653001502191653001202206653001102218653002602229653000902255653001502264653001302279653001202292100001802304700001902322700002502341856005002366 2008 eng d a0022-339500aNew and already known acanthocephalans from amphibians and reptiles in Vietnam, with keys to species of Pseudoacanthocephalus Petrochenko, 1956 (Echinorhynchidae) and Sphaerechinorhynchus Johnston and Deland, 1929 (Plagiorhynchidae).0 aNew and already known acanthocephalans from amphibians and repti c2008 Feb a181-90 v943 a

Adults of 2 new species in 2 orders of acanthocephalans obtained from the intestines of terrestrial amphibians and reptiles collected between 1998 and 2004 in Vietnam are described here. Pseudoacanthocephalus nguyenthileae n. sp. (Palaeacnthocephala: Echinorhynchidae) was collected from 5 species of terrestrial amphibians: (1) the common Sunda toad Bufo melanostictus Schneider (Bufonidae); (2) Paa verucospinosa (Bourret); (3) Gunther's Amoy frog Rana guentheri Boulenger; (4) Taipei frog R. taipehensis Denburgh (Ranidae), and (5) the Burmese whipping frog Polypedates mutus (Smith) (Racophoridae); as well as from the Chinese cobra Naja atra Cantor (Reptilia: Elapidae) and house gecko Hemidactylus frenatus Dumeril and Bibron (Reptilia: Gekkonidae). Sphaerechinorhynchus maximesospinus n. sp. (Plagiorhynchidae: Sphaerechinorhynchinae) was isolated from a king cobra Ophiophagus hannah (cantor) (Reptilia: Elapidae). Cystacanths of Porrorchis houdemeri (Joyeux and Baer, 1935) Schmidt and Kuntz, 1967 (Plagiorhynchidae: Porrorchinae) obtained from the mesenteries of banded krait Bungarus fasciatus (Schneider) (Reptilia: Elapidae), a paratenic host, are reported for the first time. Keys to the species of Pseudoacanthocephalus and Sphaerechinorhynchus are included. Characteristic features distinguishing the new species from related taxa include: P. nguyenthileae has 15-19 (usually 16-18) proboscis hook rows, each with 5-6 hooks that progressively increase in length and size posteriorly. The largest, intermediate, and smallest proboscis hooks of S. maximesospinus are the middle, anterior, and posterior hooks, respectively; the proboscis and neck are enclosed in a membrane. Morphometric characteristics of P. nguyenthileae show host-related variability.

10aAcanthocephala10aAmphibians10aAnimals10aFemale10aHelminthiasis, Animal10aMale10aPrevalence10aReptiles10aVietnam1 aAmin, Omar, M1 aVan Ha, Ngyuen1 aHeckmann, Richard, A uhttps://acanthocephala.myspecies.info/node/3401905nas a2200253 4500008004100000022001400041245019400055210006900249260001300318300001000331490000700341520110300348653001901451653001201470653000901482653001601491653001101507653001101518653001201529653001701541100001801558700002501576856005001601 2005 eng d a0165-575200aNeoechinorhynchus (Neoechinorhynchus) dorsovaginatus n. sp.(Acanthocephala: Neoechinorhynchidae) from the dusky kob Argyrosomus japonicus (Sciaenidae) on the southern coast of South Africa.0 aNeoechinorhynchus Neoechinorhynchus dorsovaginatus n spAcanthoce c2005 Jul a173-90 v613 a

Neoechinorhynchus (Neoechinorhynchus) dorsovaginatus n. sp. (Acanthocephala: Neoechinorhynchidae) is described from the dusky kob, Argyrosomus japonicus (Temminck & Schlegel) from the southern coast of South Africa in the Breede River Estuary. Like four other species of Neoechinorhynchus Stiles & Hassall, 1905, N. (N.) africanus Troncy, 1969, N. (N.) johnii Yamaguti, 1939, N. topseyi Podder, 1937 and N. (N.) tylosuri Yamaguti, 1939, the new species has a very long, slender body, cylindrical testes and cement-gland, anterior proboscis hooks much longer than the middle or posterior hooks, and a long neck. The new species is the only species of Neoechinorynchus having an antero-dorsal hump just posterior to the neck and a specialised vaginal sphincter and a gonopore on the dorsal side. It is closest to N. (N.) johnii, but is distinguished from it by: the size of the trunk, proboscis, anterior proboscis hooks, neck, and the posterior testis in relation to the cement-gland; the shape of cerebral ganglion and proboscis hook root; and the number of giant nuclei in the cement-gland.

10aAcanthocephala10aAnimals10aMale10aPerciformes10aRectum10aRivers10aSeasons10aSouth Africa1 aAmin, Omar, M1 aChristison, Kevin, W uhttps://acanthocephala.myspecies.info/node/3502310nas a2200289 4500008004100000022001400041245026000055210006900315260001300384300001100397490000700408520135300415653001901768653001201787653001301799653001101812653001801823653001101841653001601852653002601868653001501894653001001909653000901919653002401928100001801952856005001970 2005 eng d a0165-575200aOccurrence of the subgenus Acanthosentis Verma & Datta, 1929 (Acanthocephala: Quadrigyridae) in Japan, with the description of Acanthogyrus (Acanthosentis) alternatspinus n. sp. and A. (A.) parareceptaclis n. sp. from Lake Biwa drainage fishes and a key t0 aOccurrence of the subgenus Acanthosentis Verma Datta 1929 Acanth c2005 Feb a125-370 v603 a

All 44 described species of the subgenus Acanthosentis Varma & Datta, 1929 are recognised as valid. These include two new species, Acanthogyrus (Acanthosentis)alternatspinus n. sp. from Rhodeus ocellatus ocellatus (Kner) (Cyprinidae) and A. (A.) parareceptaclis n. sp. from Cobitis biwae Jordan & Snyder (Cobitidae) in the Lake Biwa drainage, Japan. These are the first representatives of the subgenus Acanthosentis recorded from Japan. Most other species are found in the Indian subcontinent, but a few have been reported from China, elsewhere in Asia, Africa, Europe and Central America. Only A. (A.) alternatspinus has the lateral proboscis hooks in the apical and middle circles markedly displaced posteriorly but of equal size to the other hooks in the same circles and multi-branched lemnisci. Acanthogyrus (A.) parareceptaclis uniquely possesses parareceptacle structures in both sexes as well as a pair of cone-shaped genital jackets flanking the vagina (vaginal sleeve). Two new names are provided: Acanthogyrus (Acanthosentis) adriaticus nom. nov. for A. (A.) lizae Orecchia, Paggi & Radujkovic, 1988 nec Wang, 1896, and A. (A.) cheni nom. nov. for A. (A.) coiliae (Yamaguti) sensu Chen et al. (1973). A review of the species composition of Acanthosentis is provided and a key to its species and zoogeographical notes are included.

10aAcanthocephala10aAnimals10aDrainage10aFemale10aFish Diseases10aFishes10aFresh Water10aHelminthiasis, Animal10aIntestines10aJapan10aMale10aSpecies Specificity1 aAmin, Omar, M uhttps://acanthocephala.myspecies.info/node/3601726nas a2200277 4500008004100000022001400041245013500055210006900190260001300259300001000272490000700282520090600289653001901195653001201214653001501226653001101241653001801252653001601270653002601286653000901312653000901321100001801330700002701348700002301375856005001398 2003 eng d a0015-568300aNeoechinorhynchus (Neoechinorhynchus) zabensis sp. n. (Acanthocephala: Neoechinorhynchidae) from freshwater fish in northern Iraq.0 aNeoechinorhynchus Neoechinorhynchus zabensis sp n Acanthocephala c2003 Dec a293-70 v503 a

Neoechinorhynchus (Neoechinorhynchus) zabensis sp. n. (Acanthocephala: Neoechinorhynchidae) is described from Capoeta damascina (Valenciennes, 1842) (type host) and Capoeta trutta (Heckel, 1843) in the Greater and Lesser Zab Rivers, northern Iraq. The new species is unique among all other species of the genus by its characteristic paired para-vaginal muscular appendage and fragmented giant nuclei in the lemnisci. Eleven of the other 88 valid species of Neoechinorhynchus and N. zabensis have middle and posterior hooks of equal length. However, N. zabensis is distinguished from the others by size of trunk, proboscis, proboscis hooks and lemnisci, number of giant nuclei, position of female gonopore, and geographical and host distribution. It is also distinguished from six other species of Neoechinorhynchus previously reported from Iraq. Other distinguishing features are also included.

10aAcanthocephala10aAnimals10aCyprinidae10aFemale10aFish Diseases10aFresh Water10aHelminthiasis, Animal10aIraq10aMale1 aAmin, Omar, M1 aAbdullah, Shamall, M A1 aMhaisen, Furhan, T uhttps://acanthocephala.myspecies.info/node/3701782nas a2200277 4500008004100000022001400041245026000055210006900315260001300384300001100397490000700408520084600415653001901261653001201280653001101292653001101303653001601314653000901330653000901339653001401348653002401362100001801386700002701404700002301431856005001454 2003 eng d a0165-575200aDescription of Pomphorhynchus spindletruncatus n. sp. (Acanthocephala: Pomphorhynchidae) from freshwater fishes in northern Iraq, with the erection of a new pomphorhynchid genus, Pyriproboscis n. g., and keys to genera of the Pomphorhynchidae and the spec0 aDescription of Pomphorhynchus spindletruncatus n sp Acanthocepha c2003 Mar a229-350 v543 a

The status of species of Pomphorhynchus Monticelli, 1905 is examined and 23 species are recognised as valid. These include P. spindletruncatus n. sp., which is described herein from two species of freshwater fishes in northern Iraq, Aspius vorax Heckel and Barbus xanthopterus (Heckel) (Cyprinidae). Only one other species, P. yunnanensis Wang, 1981, has a spindle-shaped trunk similar to that of P. spindletruncatus, but is distinguished from it by a distinctly different proboscis armature. A key separating the new taxon from other species of Pomphorhynchus is included. P. heronensis Pichelin, 1997 is reassigned to a new pomphorhynchid genus, Pyriproboscis n. g., based on its unique proboscis shape and armature, short proboscis receptacle and tubular cement glands. A key to the genera of the Pomphorhynchidae is also included.

10aAcanthocephala10aAnimals10aFemale10aFishes10aFresh Water10aIraq10aMale10aPhylogeny10aSpecies Specificity1 aAmin, Omar, M1 aAbdullah, Shamall, M A1 aMhaisen, Furhan, T uhttps://acanthocephala.myspecies.info/node/3801789nas a2200277 4500008004100000022001400041245013700055210006900192260001300261300000900274490000700283520097200290653001901262653001501281653001201296653002501308653001101333653001101344653002601355653000901381653001701390653002401407653001201431100001801443856005001461 2002 eng d a0165-575200aRevision of Neoechinorhynchus Stiles & Hassall, 1905 (Acanthocephala: Neoechinorhynchidae) with keys to 88 species in two subgenera.0 aRevision of Neoechinorhynchus Stiles Hassall 1905 Acanthocephala c2002 Sep a1-180 v533 a

Neoechinorhynchus Stiles & Hassall, 1905 is revised based on both bibliographic studies and the examination of material. The evolution of the concept of the genus is discussed. The concept of Hebesoma Van Cleave, 1928 is also commented upon. The synonymy of the two genera is accepted, with Neoechinorhynchus having priority, and a new diagnosis for Neoechinorhynchus is provided. However, Hebesoma is recognised as a subgenus of Neoechinorhynchus, being differentiated from the nominal subgenus primarily on features of the egg. Of the 109 species studied, seven are transferred to other genera and 14 are considered invalid. Eleven species are assigned to the subgenus Hebesoma and 48 to the subgenus Neoechinorhynchus. Twenty-nine species were not assigned because of incomplete or absence of descriptions of adult females. Keys to assigned and non-assigned species are provided. Notes on the zoogeography of the 88 accepted species are also included.

10aAcanthocephala10aAmphibians10aAnimals10aBiological Evolution10aFemale10aFishes10aHistory, 20th Century10aMale10aParasitology10aSpecies Specificity10aTurtles1 aAmin, Omar, M uhttps://acanthocephala.myspecies.info/node/3901363nas a2200277 4500008004100000022001400041245018800055210006900243260001300312300001000325490000700335520050200342653001900844653001200863653001100875653001800886653002600904653000900930653001600939653001000955653001300965100001800978700001800996700002101014856005001035 2002 eng d a1383-576900aNeoechinorhynchus qatarensis sp. n. (Acanthocephala: Neoechinorhynchidae) from the blue-barred flame parrot fish, Scarus ghobban Forsskål, 1775, in Qatari waters of the Arabian Gulf.0 aNeoechinorhynchus qatarensis sp n Acanthocephala Neoechinorhynch c2002 Jun a171-60 v513 a

Neoechinorhynchus qatarensis sp. n. (Acanthocephala: Neoechinorhynchidae) is described from the marine blue-barred flame parrot fish Scarus ghobban Forsskål, 1775 in the Arabian Gulf waters off the coast of Qatar. The new species is distinguished from all other species of the genus Neoechinorhynchus by its unique reproductive system and a glandular structure associated with the proboscis receptacle in both males and females. Other uncommon features of N. qatarensis are also discussed.

10aAcanthocephala10aAnimals10aFemale10aFish Diseases10aHelminthiasis, Animal10aMale10aPerciformes10aQatar10aSeawater1 aAmin, Omar, M1 aSaoud, M, F A1 aAlkuwari, K, S R uhttps://acanthocephala.myspecies.info/node/4001687nas a2200181 4500008004100000022001400041245012800055210006900183260001300252300001000265490000800275520108800283100002501371700001801396700001801414700002301432856005001455 2013 eng d a1432-195500aThe morphology and histopathology of Nephridiacanthus major (Acanthocephala: Oligacanthorhynchidae) from hedgehogs in Iran.0 amorphology and histopathology of Nephridiacanthus major Acanthoc c2013 Feb a543-80 v1123 a

The morphology of Nephridiacanthus major (Bremser 1811 in Westrumb 1821) Golvan, 1962 collected from the long-eared hedgehog Hemiechinus auritus (Gmelin 1770) and the Eastern European hedgehog Erinaceus concolor Martin, 1838 (Erinaceidae) is described using SEM for the first time. This acanthocephalan was previously described from hedgehogs in Europe, Asia, and Africa. Measurements of specimens from Iran, Bulgaria, Germany, Central Asia, Morocco, and Egypt show considerable variations in the size of the trunk, proboscis, proboscis hooks and receptacle, and eggs. The SEM studies add new perspectives to its morphology. Features observed for the first time include the near terminal position and shape of the female gonopore and orifice, among others. Histopathological studies for this species are reported for the first time. Tissue sections show extensive damage near the proboscis with hemorrhaging and formation of collagenous connective tissue, compression of the intestinal mucosa, obstruction of intestinal lumen, and extensive necrosis of host epithelial tissue.

1 aHeckmann, Richard, A1 aAmin, Omar, M1 aHalajian, Ali1 aEl-Naggar, Atif, M uhttps://acanthocephala.myspecies.info/node/2402197nas a2200313 4500008004100000022001400041245013200055210006900187260001300256300001100269490000700280520125400287653001901541653001201560653001401572653001801586653002601604653001901630653003501649653001601684653002401700653001201724100001801736700002101754700002501775700001601800700001701816856005001833 2011 eng d a1573-519200aAcanthocephaloides irregularis n. sp. (Acanthocephala: Arhythmacanthidae) from marine fishes off the Ukrainian Black Sea coast.0 aAcanthocephaloides irregularis n sp Acanthocephala Arhythmacanth c2011 Oct a125-350 v803 a

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 marmoratus (Pallas) (Gobiidae) and the black-striped pipefish Syngnathus abaster Risso (Syngnathidae). The new species is most similar to its closest relative, Acanthocephaloides propinquus (Dujardin, 1845), in proboscis shape and armature (12 longitudinal rows of 5 hooks) and the shape of the trunk, reproductive system and lemnisci, but differs in having randomly distributed trunk spines. These trunk spines are organised in circular rings of individual spines separated by aspinose zones. The new species is also unique in having an anterior trunk collar, a very large triangular cephalic ganglion, nucleated pouches at the posterior end of the proboscis receptacle, and hooks and spines with roots bearing anterior manubria. Valid and invalid species of Acanthocephaloides Meyer, 1932 are listed and a key to all ten species is included.

10aAcanthocephala10aAnimals10aBlack Sea10aFish Diseases10aHelminthiasis, Animal10aMarine Biology10aMicroscopy, Electron, Scanning10aPerciformes10aSpecies Specificity10aUkraine1 aAmin, Omar, M1 aOğuz, Mehmet, C1 aHeckmann, Richard, A1 aTepe, Yahya1 aKvach, Yuriy uhttps://acanthocephala.myspecies.info/node/2602317nas a2200241 4500008004100000022001400041245018600055210006900241260001300310300001000323490000800333520153400341653001901875653001201894653001801906653001101924653002601935653001501961653001201976100001801988700001902006856005002025 2011 eng d a1432-195500aOn four species of echinorhynchid acanthocephalans from marine fish in Halong Bay, Vietnam, including the description of three new species and a key to the species of Gorgorhynchus.0 afour species of echinorhynchid acanthocephalans from marine fish c2011 Sep a841-70 v1093 a

Four species of echinorhynchid acanthocephalans were collected from marine fish off Cat Ba Island, Halong Bay, Gulf of Tonkin, Vietnam, in the spring of 2009. Acanthocephalus halongensis n. sp. (Echinorhynchidae) from the redtail scad, Decapterus kurroides Bleeker 1855 (Carangidae), has a unique proboscis armature with a spiniform basal hook with lateral root and an incomplete receptacle wall posteriorly. Gorgorhynchus tonkinensis n. sp. (Rhadinorhynchidae) also from D. kurroides, has long, slender, winding lemnisci, many epidermal nuclei, and a narrow anterior trunk with a shoulder armed with 20 circles of tightly packed spines, the posterior four circles of which have abruptly larger spines than those in the anterior circles. Neorhadinorhynchus atypicalis n. sp. (Cavisomidae) from the rabbitfish, Siganus fuscescens (Houttuyn 1782) (Siganidae), has the largest number of proboscis hooks per row, testes wider than long, and four clustered cement glands. Micracanthorhynchica kuwaitensis Amin and Sey 1996 (Rhadinorhynchidae) from the spottail needlefish Strongylura strongylura (van Hasselt 1823) (Belonidae) was similar to specimens originally described from the Arabian Gulf off the Kuwaiti coast. These acanthocephalans were collected in small numbers but stood out as uniquely and considerably different from their closest relatives to warrant their reporting. All species of acanthocephalans and their host and geographic distribution are described, and a key to the species of Gorgorhynchus is provided.

10aAcanthocephala10aAnimals10aFish Diseases10aFishes10aHelminthiasis, Animal10aMicroscopy10aVietnam1 aAmin, Omar, M1 aVan Ha, Nguyen uhttps://acanthocephala.myspecies.info/node/2702415nas a2200313 4500008004100000022001400041245020400055210006900259260001300328300001000341490000700351520143200358653001901790653001201809653001801821653001101839653002601850653000901876653000901885653003501894653001801929653001501947653001201962100001801974700002501992700001802017700001602035856005002051 2010 eng d a1937-234500aRedescription of Sphaerirostris picae (Acanthocephala: Centrorhynchidae) from magpie, Pica pica, in northern Iran, with special reference to unusual receptacle structures and notes on histopathology.0 aRedescription of Sphaerirostris picae Acanthocephala Centrorhync c2010 Jun a561-80 v963 a

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.

10aAcanthocephala10aAnimals10aBird Diseases10aFemale10aHelminthiasis, Animal10aIran10aMale10aMicroscopy, Electron, Scanning10aPasseriformes10aPrevalence10aSeasons1 aAmin, Omar, M1 aHeckmann, Richard, A1 aHalajian, Ali1 aEslami, Ali uhttps://acanthocephala.myspecies.info/node/2902786nas a2200337 4500008004100000022001400041245022500055210006900280260001300349300001100362490000700373520165800380653001902038653001202057653001102069653001802080653002602098653000902124653003502133653003902168653001802207653001502225653001802240653000902258100001802267700002502285700002302310700003302333700003202366856005002398 2009 eng d a1937-234500aRedescription of Rhadinorhynchus ornatus (Acanthocephala: Rhadinorhynchidae) from skipjack tuna, Katsuwonus pelamis, collected in the Pacific Ocean off South America, with special reference to new morphological features.0 aRedescription of Rhadinorhynchus ornatus Acanthocephala Rhadinor c2009 Jun a656-640 v953 a

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 America and Japan, but had more trunk spines. Definitive differences between the length and thickness of each of the dorsal and ventral proboscis hooks are noted for the first time, with most ventral middle hooks being relatively shorter and more robust than dorsal middle hooks. The SEM documented, for the first time, the different surface topography of the tegument in the proboscis, the neck, and in 3 trunk regions; the presence of microtrichs in the mid- and posterior trunk regions; the elevated base of trunk spines; the circular arrangement of basal proboscis hooks; the different morphology of all dorsal and ventral proboscis hooks and the striations of their surface; the ribbed surface topography of eggs; the elevated slit-like female gonopore; and the rimmed edge of the bursa. The presence of microtrichs on the tegumental surface is further supported by transmission electron microscopy studies. This is the first report of microtrichs in any species of Acanthocephala and the second report of striations in proboscis hooks. The geographical distribution of R. ornatus appears to correspond, at least in part, to that of its epipelagic primary host, K. pelamis, throughout the world in waters ranging in temperature from 14.7 to 30 C.

10aAcanthocephala10aAnimals10aFemale10aFish Diseases10aHelminthiasis, Animal10aMale10aMicroscopy, Electron, Scanning10aMicroscopy, Electron, Transmission10aPacific Ocean10aPrevalence10aSouth America10aTuna1 aAmin, Omar, M1 aHeckmann, Richard, A1 aRadwan, Nahla, A E1 aAnchundia, Johan, S Mantuano1 aAlcivar, Marcos, A Zambrano uhttps://acanthocephala.myspecies.info/node/3002230nas a2200301 4500008004100000022001400041245016800055210006900223260001300292300001400305490000700319520133800326653001901664653001301683653001201696653001101708653001801719653001201737653002601749653000901775653001101784100001801795700001501813700001701828700002001845700001301865856005001878 2008 eng d a0022-339500aDescription of a new Echinorhynchid species (Acanthocephala) from the European eel, Anguilla anguilla, in Germany, with a key species of Acanthocephalus in Europe.0 aDescription of a new Echinorhynchid species Acanthocephala from  c2008 Dec a1299-13040 v943 a

Acanthocephalus rhinensis n. sp. is described from the European eel. Anguilla anguilla (Linnaeus, 1758), collected in the Rhine River near the city of Karlsruhe, Germany. It is the sixth species of Acanthocephalus Koelreuther, 1771 described from European fish. Four other species are known from amphibians. The new species is distinguished from the other 5 species infecting fish by having a 1.2-mm-long proboscis armed with 15-21 rows of 13-16 hooks each, lemnisci about as long as receptacle, oblong and slightly pre-equatorial testes, and thin fusiform eggs, measuring 85-95 X 15-18 micro. Testes in the other European species are usually round to ovate, except in Ac. anguillae (Müller, 1780) Lühe, 1911 where they are also elongated but postequatorial. It aslo has an orange-brown belt encircling the anterior end of the trunk. The comparative distribution of Acanthocephalus in Europe and North America, and the validity of 2 presumably questionable species are discussed, Acanthocephalus falcatus (Froelich, 1789) Lühe, 1911 and Ac. Paronai (Cendorelli, 1897) Meyer, 1932. A dichotomus key distinguishing Ac. rhinensis from the other 9 European species is also included. The new species was only found in 3 of 390 eels examined during 11 yr; this may be related to the changing benthos community in the Rhine River.

10aAcanthocephala10aAnguilla10aAnimals10aFemale10aFish Diseases10aGermany10aHelminthiasis, Animal10aMale10aRivers1 aAmin, Omar, M1 aThielen, F1 aMünderle, M1 aTaraschewski, H1 aSures, B uhttps://acanthocephala.myspecies.info/node/3101815nas a2200253 4500008004100000022001400041245007600055210006900131260001300200300001200213490000700225520112500232653001901357653001201376653001801388653001001406653001101416653002601427653000901453653001201462100001801474700001901492856005001511 2008 eng d a0022-339500aOn a new acanthocephalan family and a new order, from birds in Vietnam.0 anew acanthocephalan family and a new order from birds in Vietnam c2008 Dec a1305-100 v943 a

During November 2000, a collection of acanthocephalans from birds in Quang Ninh Province, Vietnam, included a new genus and species in a new family and order. Pyrirhynchus heterospinus n. gen., n. sp. (Pyrirhynchidae n. fam.: Heteramorphida: new order) is described from Actitis hypoleucos (Linnaeus, 1758) (common sandpiper). The new family combines characters from Polymorphidae and Heteracanthocephalidae, and it includes new features. Specimens of the new species are distinguished from those of Heteracanthocephalidae and/or Polymorphidae by their long cylindrical trunk with anterior swelling, pyriform proboscis with hooks much larger ventrally, brain at the anterior end of the receptacle, specialized tubular cement glands, and elliptoid eggs with concentric shells. A detailed analysis of proboscis and trunk armature is included, and specimens of several species of Arhythmorhynchus Lühe, 1911 (Polymorphidae) were studied for comparative purposes. The proboscis of P. heterospinus is armed with 17 to 20 rows of 17 to 19 hooks each, with anterior 9-11 hooks rooted and posterior 6-10 spines rootless.

10aAcanthocephala10aAnimals10aBird Diseases10aBirds10aFemale10aHelminthiasis, Animal10aMale10aVietnam1 aAmin, Omar, M1 aVan Ha, Nguyen uhttps://acanthocephala.myspecies.info/node/3202105nas a2200313 4500008004100000022001400041245014700055210006900202260001300271300001200284490000700296520118800303653001901491653001201510653001101522653002601533653003501559653001501594653000901609653001201618653001301630653001301643653001101656653001201667100001801679700001901697700002501716856005001741 2008 eng d a0022-339500aNew and already known acanthocephalans mostly from mammals in Vietnam, with descriptions of two new genera and species in Archiacanthocephala.0 aNew and already known acanthocephalans mostly from mammals in Vi c2008 Feb a194-2010 v943 a

Adults of 2 new species and 2 new genera of acanthocephalans in class Archiacanthocephala, collected between 1998 and 2004 in Vietnam from the intestines of mammals, are described, i.e., Cucullanorhynchus constrictruncatus n. gen., n. sp. (Oligacanthorhynchidae) from a leopard Panthera pardus (Linnaeus) (Mammalia: Felidae) and Paraprosthenorchis ornatus n. gen. n. sp. (Oligacanthorhynchidae) from the Chinese pangolin Manis pentadactyla (Linnaeus) (Mammalia: Manidae). Adult Sphaerechinorhynchus macropisthospinus Amin, Wongsawad, Marayong, Saehoong, Suwattanacoupt, and Sey, 1998 (Plagiorhynchidae) are described for the first time from 2 females collected from a tiger Panthera tigris (Linnaeus) (Mammalia: Felidae) and from 1 male from a water monitor Varanus salvator Laurenti (Reptilia: Varanidae). Characteristic features distinguishing the new species or genera from related taxa are as follows. The trunk of C. constrictruncatus has an anterior hood in both sexes and a posterior constriction in females. The anterior trunk of P. ornatus has many small festoons and proboscis hooks are inserted in elevated papillae separated by beady, near hexagonal, ornate grids.

10aAcanthocephala10aAnimals10aFemale10aHelminthiasis, Animal10aIntestinal Diseases, Parasitic10aIntestines10aMale10aMammals10aPanthera10aReptiles10aTigers10aVietnam1 aAmin, Omar, M1 aVan Ha, Ngyuen1 aHeckmann, Richard, A uhttps://acanthocephala.myspecies.info/node/3302681nas a2200157 4500008004100000022001400041245018800055210006900243260001600312520206300328100001802391700002002409700002202429700002202451856005002473 2012 ENG d a1937-234500aTHE DESCRIPTION AND HOST-PARASITE RELATIONSHIPS OF A NEW QUADRIGYRID SPECIES (ACANTHOCEPHALA) FROM THE PERSIAN TOOTH-CARP, APHANIUS FARSICUS (ACTINOPTREYGII: CYPRINODONTIDAE) IN IRAN.0 aDESCRIPTION AND HOSTPARASITE RELATIONSHIPS OF A NEW QUADRIGYRID  c2012 Sep 203 a

Abstract Acanthogyrus (Acanthosentis) barmeshoori n. sp. (Quadrigyridae) is described from the Persian tooth-carp, Aphanius farsicus (Teimori, Esmaeili and Reichenbacher, 2011) (Cyprinodontidae) in the Maharlu Lake basin, southern Iran. Aphanius farsicus is an endemic freshwater fish found in streams and springs that drain into Maharlu Lake, Shiraz, Iran. The new species is the smallest of all the 44 known species of the subgenus Acanthosentis Verma and Datta, 1929, measuring between 0.26 and 1.68 mm in length. It is further distinguished by having a short cylindrical proboscis with very long anterior hooks widely separated from very small hooks in 2 very close circles posteriorly (hook length ratio about 4:1). It is separated from 4 other species of Acanthosentis with similar proboscis armature but with less extreme diversification of hook length. The new species is also distinguished by having anterior para-receptacle structures (PRS) and a similar posterior structure like those reported in only 1 other species of Acanthosentis from Japan. Proboscis receptacle single walled with large triangular cephalic ganglion. Testes are large, pre-equatorial, and Saefftigen's pouch is prominent. Fourteen to 25 circles of spines cover the anterior 50-70% of the trunk but a few spines may be present at posterior end of trunk. This is the first species of Acanthosentis where SEM images, showing external morphological details, are provided. Of a total of 357 fish specimens examined between July, 2006 and June, 2007, 173 specimens (48.5 %) were infected with individuals of the new species. The prevalence of infection decreased with increasing fish size. The parasite was observed all year with the highest abundance and intensity in May while the prevalence was highest in February. The prevalence of acanthocephalans decreased with increasing fish size. While most worms were recovered in fish within the length range of 18-29.9 mm, one of the longest parasites (1.68 mm long) was found in fish within the range of 30-33.9 mm long.

1 aAmin, Omar, M1 aGholami, Zeinab1 aAkhlaghi, Mostafa1 aHeckmann, Richard uhttps://acanthocephala.myspecies.info/node/13