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1

Digenean parasites of Sigmodontinae rodents from Argentina: a list of species, new host, and geographical records

100%
Guerreiro Maryins N. B., del Rosario Robles M., Diaz J. I., Panisse G., Navone G. T.
Acta Parasitologica
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2020
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tom 65
|
nr 1
2

Fur mites of the family Listrophoridae (Acariformes: Sarcoptoidea) associated with South American sigmodontine rodents (Cricetidae: Sigmodontinae)

84%
Sikora B., Bochkov A. V.
Acta Parasitologica
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2012
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tom 57
|
nr 4
Six species of 3 genera belonging to the fur mite family Listrophoridae were recorded on skins of South American rodents of the cricetid subfamily Sigmodontinae housed in the Bavarian State Collection of Zoology (Munich, Germany). Among them, Amlistrophorus geoxus sp. nov. from Geoxus valdivianus from Chile is described as a new for science, and males of Prolistrophorus amazonicus amazonicus Fain, 1971 are recorded for the first time. The full generic status for the subgenus Amlistrophorus of the genus Prolistrophorus proposed by Fain et al. (1996) is not supported, and Prolistrophorus musculinus Fain, 1973 stat. nov. (formerly a subspecies of P. amazonicus) from Mus musculus (Rodentia: Muridae) from Suriname is raised to species status. New hosts are recorded for the following species: Prolistrophorus argentinus (Hirst, 1921) from Holochilus brasiliensis and H. chacarius from Argentina, P. amazonicus from Calomys callosus from Argentina and Bolivia, C. laucha and C. musculinus from Argentina, P. akodon Fain and Lukoschus, 1982 from Akodon montensis from Argentina, P. nectomys Fain, 1971 from Nectomys palmipes from Peru and Melanomys caliginosus from Panama, and Sclerolistrophorus oxymycteris Fain, 1976 from Oryzomys laticeps from Brazil.
3

A new species of sigmodontine rodent from the Atlantic forest of Eastern Brazil

67%
De O. J. A., Bonvicino C. R.
Acta Theriologica
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2002
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tom 47
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nr 3
We describe a new sigmodontine species on the basis of three specimens obtained from a high-altitude locality in the Atlantic forest of eastern Brazil. This new form, a small-bodied pentalophodont with tail longer than head and body, long soft fur, and a brownish ochraceous dorsum, is diagnosed by the presence of an open slit in the suture between the frontal bones in prepared skulls, and by a reduced diploid number of 20 coupled with a relatively high fundamental number of 34. Although the low diploid number suggests a derived sigmodontine, analyses of morphological characters and DNA sequence data (720 bp of the cytochrome-6 gene) point to its placement within the recently described genus Juliomys González, 2000, a taxon regarded as belonging to an old and independent sigmodontine lineage. This finding reinforces current hypotheses of the Atlantic forest domain as an important center of diversification for a primitive sigmodontine stock. It also suggests that at least some surviving lineages, often considered rather ancient and unspeciose relicts, were subject to relatively more recent speciation events.
4

Two new species of Nippostrongylinae [Nematoda, Heligmosomoidea, Heligmonellidae] from a sigmodontine rodent in Argentina

67%
Digiani M. C., Durette-Desset M. C.
Acta Parasitologica
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2003
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tom 48
|
nr 1
Two new Nippostrongylinae, Malvinema yagoi sp. nov. and Stilestrongylus talaverensis sp. nov. are described from the intestine of the water rat Scapteromys aquaticus (Thomas) (Sigmodontinae) from the Province of Buenos Aires, Argentina. Malvinema yagoi sp. nov. is distinguished from the most closely related species M.frederici Digiani, Sutton et Durette-Desset, 2003, from the same host and locality, mainly by a caudal bursa with the right rays 3 and 6, and 4 and 5 of equivalent length, and the posterior end of the female ventrally folded. Stilestrongylus talaverensis sp. nov. is distinguished from the most closely related species S. manni Denké et Murúa, 1977, a parasite of Akodon spp. from Chile, mainly by the presence of a short common trunk of rays 3 to 6 in the left lobe of the caudal bursa, the right ray 4 shorter than ray 5, the higher spicule length/body length ratio and the rotation of the posterior end of the female.
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