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      Helminths of the common opossum Didelphis marsupialis (Didelphimorphia: Didelphidae), with a checklist of helminths parasitizing marsupials from Peru Translated title: Helmintos de la zarigüeya común Didelphis marsupialis (Didelphimorphia: Didelphidae), con una lista de los helmintos de marsupiales de Perú

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          Abstract

          Abstract: Between May and November 2015, 8 specimens of Didelphis marsupialis Linnaeus, 1758 (Didelphimorphia: Didelphidae) collected in San Martín, Peru were examined for the presence of helminths. A total of 582 helminths representing 11 taxa were identified (2 digeneans and 9 nematodes). Five new host records and 4 species of nematodes [Gongylonemoides marsupialis (Vaz & Pereira, 1934) Freitas & Lent, 1937, Trichuris didelphis Babero, 1960, Viannaia hamata Travassos, 1914 and Viannaia viannaia Travassos, 1914] are added to the composition of the helminth fauna of the marsupials in this country. Further, a checklist of all available published accounts of helminth parasites reported from Peru is provided. To date, a total of 38 helminth parasites have been recorded. Digeneans have the highest species richness in number and percentage (n = 19, 50%), followed by nematodes (n = 17, 45%) and acanthocephalans (n = 2, 5%). The parasites with the highest number of records were the digeneans Plagiorchis didelphidis (Parona, 1896) Stossich, 1904 (n = 4) and Rhopalias coronatus Kifune & Uyema, 1982 (n = 4) and the nematode Aspidodera sp. (n = 4). Additional sampling in this country will probably increase the richness of the helminthological inventory of this group of mammals.

          Translated abstract

          Resumen: Entre mayo y noviembre del 2015, 8 ejemplares de Didelphis marsupialis Linnaeus, 1758 (Didelphimorphia: Didelphidae) recolectados en San Martín, Perú, fueron examinados en busca de helmintos. Un total de 582 helmintos representando 11 taxones fueron identificados (2 digéneos y 9 nemátodos). Cinco registros nuevos y 4 especies de nemátodos [Gongylonemoides marsupialis (Vaz y Pereira, 1934) Freitas y Lent, 1937, Trichuris didelphis Babero, 1960, Viannaia hamata Travassos, 1914 y Viannaia viannaia Travassos, 1914] se agregan a la composición de la fauna de helmintos de marsupiales de Perú. Además, se proporciona una lista de todos los registros publicados de este grupo de parásitos para marsupiales en dicho país. Hasta la fecha, se ha registrado un total de 38 helmintos; los digéneos tienen la mayor riqueza de especies en número y porcentaje (n = 19, 50%), seguido por los nemátodos (n = 17, 45%) y acantocéfalos (n = 2, 5%). Los parásitos con mayor número de registros fueron los digéneos Plagiorchis didelphidis (Parona, 1896) Stossich, 1904 (n = 4) y Rhopalias coronatus Kifune y Uyema, 1982 (n = 4) y el nemátodo Aspidodera sp. (n = 4). Nuevos muestreos en este país probablemente aumentarán la riqueza del inventario helmintológico de este grupo de mamíferos.

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          Classification of the acanthocephala.

          O Amin (2013)
          In 1985, Amin presented a new system for the classification of the Acanthocephala in Crompton and Nickol's (1985) book 'Biology of the Acanthocephala' and recognized the concepts of Meyer (1931, 1932, 1933) and Van Cleave (1936, 1941, 1947, 1948, 1949, 1951, 1952). This system became the standard for the taxonomy of this group and remains so to date. Many changes have taken place and many new genera and species, as well as higher taxa, have been described since. An updated version of the 1985 scheme incorporating new concepts in molecular taxonomy, gene sequencing and phylogenetic studies is presented. The hierarchy has undergone a total face lift with Amin's (1987) addition of a new class, Polyacanthocephala (and a new order and family) to remove inconsistencies in the class Palaeacanthocephala. Amin and Ha (2008) added a third order (and a new family) to the Palaeacanthocephala, Heteramorphida, which combines features from the palaeacanthocephalan families Polymorphidae and Heteracanthocephalidae. Other families and subfamilies have been added but some have been eliminated, e.g. the three subfamilies of Arythmacanthidae: Arhythmacanthinae Yamaguti, 1935; Neoacanthocephaloidinae Golvan, 1960; and Paracanthocephaloidinae Golvan, 1969. Amin (1985) listed 22 families, 122 genera and 903 species (4, 4 and 14 families; 13, 28 and 81 genera; 167, 167 and 569 species in Archiacanthocephala, Eoacanthocephala and Palaeacanthocephala, respectively). The number of taxa listed in the present treatment is 26 families (18% increase), 157 genera (29%), and 1298 species (44%) (4, 4 and 16; 18, 29 and 106; 189, 255 and 845, in the same order), which also includes 1 family, 1 genus and 4 species in the class Polyacanthocephala Amin, 1987, and 3 genera and 5 species in the fossil family Zhijinitidae.
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            Nematóides do Brasil. Parte V: nematóides de mamíferos

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              Diversidad y endemismo de los mamíferos del Perú

              Se presenta una lista comentada de los mamíferos terrestres, acuáticos y marinos nativos de Perú, incluyendo sus nombres comunes, la distribución por ecorregiones y los estados de amenaza según la legislación nacional vigente y algunos organismos internacionales. Se documenta 508 especies nativas, en 13 órdenes, 50 familias y 218 géneros; resultando el Perú como el tercer país con la mayor diversidad de especies en el Nuevo Mundo después de Brasil y México, así como quinto en el mundo. Esta diversidad incluye a 40 didelfimorfos, 2 paucituberculados, 1 sirenio, 6 cingulados, 7 pilosos, 39 primates, 162 roedores, 1 lagomorfo, 2 soricomorfos, 165 quirópteros, 34 carnívoros, 2 perisodáctilos y 47 cetartiodáctilos. Los roedores y murciélagos (327 especies) representan casi las dos terceras partes de la diversidad (64%). Cinco géneros y 65 especies (12,8%) son endémicos para Perú, siendo la mayoría de ellos roedores (45 especies, 69,2%). La mayoría de especies endémicas se encuentra restringida a las Yungas de la vertiente oriental de los Andes (39 especies, 60%) seguida de lejos por la Selva Baja (14 especies, 21,5%). Se comenta la taxonomía de algunas especies, cuando éstas discrepan de la taxonomía aceptada. El marsupial Marmosa phaea; los roedores Melanomys caliginosus, M. robustulus y Echinoprocta rufescens; la musaraña Cryptotis equatoris; los murciélagos Anoura fistulata, Phyllostomus latifolius, Artibeus ravus, Cynomops greenhalli, Eumops maurus y Rhogeessa velilla; y el carnívoro Nasuella olivacea son primeros registros para el Perú. Finalmente, se incluye una lista de 15 especies introducidas.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rmbiodiv
                Revista mexicana de biodiversidad
                Rev. Mex. Biodiv.
                Instituto de Biología (México, DF, Mexico )
                1870-3453
                2007-8706
                2017
                : 88
                : 3
                : 560-571
                Affiliations
                [1] Lima Lima orgnameUniversidad Nacional Federico Villarreal orgdiv1Facultad de Ciencias Naturales y Matemática orgdiv2Laboratorio de Parasitología Peru
                [3] Lima Lima orgnameUniversidad Ricardo Palma orgdiv1Facultad de Ciencias Biológicas orgdiv2Laboratorio de Parasitología Peru
                [2] Tarapoto orgnameUniversidad Alas Peruanas Peru
                Article
                S1870-34532017000300560
                10.1016/j.rmb.2017.07.004
                e9f79e1e-ce03-4478-91ea-41f8b0068a62

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 09 June 2016
                : 27 March 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 60, Pages: 12
                Product

                SciELO Mexico

                Categories
                Taxonomy and systematics

                Metachirus nudicaudatus,Plagiorchis didelphidis,Rhopalias coronatus,Mamíferos,Philander opossum,Neotropical,Mammals

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