“…The specimens were found penetrating the intestinal mucosa, causing an ulcerated area at the point of insertion of the proboscis. The morphology, including the number of columns and hooks for each one and also the measurements were agree with Travassos (1926), Schmidt (1965) and Amin (1992). McDonald (1988) isolated Polymorphus miniatus (von Linstow 1896) Travassos 1926, from Anas sp.…”
“…The morphology, including the number of columns and hooks for each one and also the measurements were agree with Travassos (1926), Schmidt (1965) and Amin (1992). McDonald (1988) isolated Polymorphus miniatus (von Linstow 1896) Travassos 1926, from Anas sp. Linnaeus 1758 (Anseriformes, Anatidae) in Magellan Strait, South America.…”
“…Acanthocephalans with aquatic life cycles use crustaceans as intermediate hosts and fi shes as paratenic hosts (Richardson & Nickol, 2008). According to Amin (1992) and Travassos (1926) P. mutabilis has been isolated in South America from Charadriiformes, Pelecaniformes and Coraciiformes. Some common acanthocephala isolated from raptors are Centrorhynchus Lühe 1911, Sphaerirostris Golvan 1956and Oligacanthorhynchus Travassos 1915(Richardson & Nickol, 2008.…”
SummaryThe goal of the present survey was to improve the scarce knowledge regard the endoparasites of raptors in Chile and South America. Thus, necropsy was performed on 14 chimango caracara Milvago chimango temucoensis from Los Ríos Region, Chile. From all examined birds, 78.6% were positive to helminths. The species identifi ed were Capillaria tenuissima, Pterothominx sp.
“…The specimens were found penetrating the intestinal mucosa, causing an ulcerated area at the point of insertion of the proboscis. The morphology, including the number of columns and hooks for each one and also the measurements were agree with Travassos (1926), Schmidt (1965) and Amin (1992). McDonald (1988) isolated Polymorphus miniatus (von Linstow 1896) Travassos 1926, from Anas sp.…”
“…The morphology, including the number of columns and hooks for each one and also the measurements were agree with Travassos (1926), Schmidt (1965) and Amin (1992). McDonald (1988) isolated Polymorphus miniatus (von Linstow 1896) Travassos 1926, from Anas sp. Linnaeus 1758 (Anseriformes, Anatidae) in Magellan Strait, South America.…”
“…Acanthocephalans with aquatic life cycles use crustaceans as intermediate hosts and fi shes as paratenic hosts (Richardson & Nickol, 2008). According to Amin (1992) and Travassos (1926) P. mutabilis has been isolated in South America from Charadriiformes, Pelecaniformes and Coraciiformes. Some common acanthocephala isolated from raptors are Centrorhynchus Lühe 1911, Sphaerirostris Golvan 1956and Oligacanthorhynchus Travassos 1915(Richardson & Nickol, 2008.…”
SummaryThe goal of the present survey was to improve the scarce knowledge regard the endoparasites of raptors in Chile and South America. Thus, necropsy was performed on 14 chimango caracara Milvago chimango temucoensis from Los Ríos Region, Chile. From all examined birds, 78.6% were positive to helminths. The species identifi ed were Capillaria tenuissima, Pterothominx sp.
“…Present study Schmidt & Neiland (1966) Schmidt & Neiland (1966) Nickol (1983 Bravo Hollis (1947) Travassos (1926) phism, females longer than males. The new species is named after the specific name of the host.…”
Centrorhynchus guira n. sp. is described from the guira cuckoo, Guira guira (Gmelin) (Cuculiformes: Cuculidae), from Argentina. This new species is characterized by the proboscis armament with 32 longitudinal rows (29 with 18 hooks per row and 3 with 19 hooks per row) and by the following hook pattern per row: 8–9 true hooks, 4 transitional hooks with lateral alate processes, and 6 spiniform hooks. The presence of transitional hooks is shared with five other Neotropical species in the genus: C. polymorphus, C. albidus, C. microcephalus, C. kuntzi and C. crotophagicola. Among these species, C. guira n. sp. most closely resembles C. kuntzi in having transitional hooks with lateral alate processes, however differs in the number of hooks per row and spiniform hooks. This is the first record of the genus Centrorhynchus parasitizing Argentinean birds. A key to the species of the Neotropical Centrorhynchus Lühe 1911 is presented.
“…In South America, there are reports of larval stages (cystacanths) of Centrorhynchus spp. from Brazil, Ecuador, Paraguay and Argentina, mainly infesting ophidians (LAMAS & LUNASCHI, 2009;SMALES, 2007a,b;TRAVASSOS, 1926;VIZCAÍNO, 1993). In Chile, cystacanths belonging to the genus Centrorhynchus were reported in anurans of the genus Eupsophus Fitzinger 1843 (TORRES & PUGA, 1996), which would confirm the presence of at least one type of paratenic host in this country.…”
Information about parasites associated with diurnal raptors from Chile is scarce. Between 2006 and 2017, a total of 15 specimens of the Variable hawk, Geranoaetus polyosoma (Quoy & Gaimard, 1824) were collected, 14 of them from different localities in the Biobío region and one specimen from the Valparaíso region. An external examination of the plumage was made to collect ectoparasites, and necropsies were performed, focusing primarily on the gastrointestinal tract. Chewing lice (Phthiraptera) were found on five (33.3%) of the birds corresponding to three species: 97 specimens of Degeeriella fulva (Giebel, 1874), six specimens of Colpocephalum turbinatum Denny, 1842 and nine belonging to an unidentified species of the genus Craspedorrhynchus Kéler, 1938. Endoparasites found in three (20%) of the birds included round worms (Nematoda) of the genus Procyrnea Chabaud, 1958, and spiny-headed worms (Acanthocephala) of the genus Centrorhynchus Lühe, 1911. The species Colpocephalum turbinatum and the genera: Craspedorrhynchus sp., Procyrnea sp. and Centrorhynchus sp. are new records for the Variable hawk.
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