In this paper, we report the results of parasitological examination performed on 40 specimens of marsupials species: Caluromys lanatus, Didelphis marsupialis, Marmosops noctivagus, Metachirus nudicaudatus, Marmosa (Micoureus)regina, Monodelphis adusta, Philander andersoni and Philander opossum from department of Loreto, Peru. The endoparasites were: Nematoda: Aspidodera sp., Cruzia tentaculata, Physaloptera mirandai, Physaloptera sp., Pterygodermatites sp., Trichuris sp., Turgida turgida, and Viannaia sp.; Trematoda: Podo- spathalium pedatum; Acanthocephala: Giganthorhynchus ortizi and Pentastomida: nymph. For the first time Trichuris sp., Pterygodematities sp., Turgida turgida, Viannaia sp. and Podospathalium pedatum are reported from marsupials in Peru. Also, for the first time the following parasite-hosts associations are recorded: Pterygo- dermatites sp.-Marmosa regina, Viannaia sp.-...

During a large survey of mammals and their parasites, which took place in the Manu Biosphere Reserve, Madre de Dios, Peru, two specimens of Atelocynus microtis, short eared dog, were captured from which some acanthocephalan specimens were collected. Albeit it was not possible to identify them up to species level basically due to their immature condition, all of them were diagnosed as members of the genus Oncicola Travassos, 1916.

We obtained 8 digestive tract of the turtle Podocnemis expansa and 18 of P. unifilis from the Belen market (Iquitos, Peru). Only digeneans were studied and identified. Four species were found: Nematophila grandis (Diesing, 1839) Travassos, 1934, Halltrema avitellina Lent & Freitas, 1939, Podocnemitrema papillosum Alho & Vicente, 1964 and Telorchis hagmanni Lent & Freitas, 1937. Halltrema avitellina, Podocnemitrema papillosum and Telorchis hagmanni are new records from Peru.

We are identified to Viscachataenia quadrata Denegri, Dopchiz, Elissondo & Beveridge, 2003 of the small intestine of Lagidium peruanum Meyen, from Lima, Puno and Ayacucho.

L i n c i c o m e 1 9 4 3 ( A c a n t h o c e p h a l a , P o l y m o r p h i d a e ) i s r e p o r t e d i n t h e s m a l l Corynosoma obtuscens intestine of Andean fox Pseudalopex culpaeus (Molina, 1782) from San Juan de Marcona, in the Pseudalopex culpaeus (Molina, 1782) from San Juan de Marcona, in the Pseudalopex culpaeus department of Ica, Peru. This is the second time that C. obtuscens is reported to infect terrestrial mammals in Peru supporting that P. culpaeus is a defi nitive accidental host of the parasite. In P. culpaeus is a defi nitive accidental host of the parasite. In P. culpaeus addition, the possibility that C. obtuscens infects humans is discussed. C. obtuscens infects humans is discussed.

In this paper, Mecistocirrus digitatus (Linstow, 1906) Railliet and Henry, 1012 a nematode Trichostrongylidae is reported in the fi rst time from Loreto, Peru.

In this paper, the fullest information available about the Acanthocephalan discovered in Peru is presented, but also new hosts.

A parasitology survey was conducted at the Parque de Las Leyendas Zoo in Lima, Peru at 1993. Forty nine stool samples of animals comprehended among five families of carnivores (Canidae, Ursidae, Procyonidae, Mustelidae, and Felidae) were collected and processed using routine methods for helminth ova detection. Three species of Felidae, Puma concolor, (puma andino and puma de la selva), Panthera onca (jaguar) and Leopardus pardalis (ocelot) had been infected with Spirometra mansonoides.

During 2001, eight genera (three identified to species level) of endoparasites were collected from wild mammals and birds in Peru. These collections were part of a large survey along an elevational gradient (470 – 3780 m.) on the Southwestern border of the Manu Biosphere Reserve (Departments of Cusco and Madre de Dios). Parasites were field–fixed in 70% ethyl alcohol and transported to the laboratory, where nematodes were cleared and cestodes were stained using standard procedures. Identification of some specimens was impossible. Nonetheless, the material is of exceptional interest because it includes the first Peruvian records of some taxa. Our findings include: Rhopalias caballeroi Kifune and Uyema, 1982, Rhopalias sp. (probable n. sp.), Taenia pisiformis Bloch, 1780 (cysticercus), Mesocestoides sp. (tetratyridia), Aprocta sp., Evaginuris branicki Mc Clure, 1932, Haematospiculum sp...

A survey was made of sand crab, Emerita analoga Stimpson (Hippidae), collected at Bujama beach (Mala, Lima) January-February, 2001. From 37 to 48% of them harbored cystacanths identified as Profilicollis altmani (Perry, 1942) Van Cleave, 1947. Otherwise, a number of these cystacanths were inoculated to rats, mice, hamsters and a pup. All animals were infected. The acanthocephalan was found in the abdominal cavity and/or wall of the small and large intestine. Man may become infected with P. altmani by eating infected sand crabs.

In this paper, Dipetalonema graciliformis Freitas, 1964 parasite of Saguinus labiatus; Evaginuris branickii (McClure, 1932) Quentin, 1973 of Dinomys branickii, Alaeuris caudatus (Lent & Freitas, 1948) of Iguana iguana and Serpinema amazonicus of Podocnemis expansa are recorded for the first time. Also, Saguinus labiatus is considered as new host for Dipetalonema graciliformis.

En este trabajo, informamos los resultados del análisis parasitológico realizado a 40 individuos marsupiales de las especies Caluromys lanatus, Didelphis marsupialis, Marmosops noctivagus, Metachirus nudicaudatus, Marmosa (Micoureus) regina, Monodelphis adusta, Philander andersoni y Philander opossum procedentes del departamento de Loreto, Perú. Se determinaron en total 11 especies de helmintos parásitos: Nematoda: Aspidodera sp., Cruzia tentaculata, Physaloptera mirandai, Physaloptera sp., Pterygodermatites sp., Trichuris sp., Turgida turgida, y Viannaia sp.; Trematoda: Podospathalium pedatum; Acanthocephala: Giganthorhynchus ortizi; y Pentastomida: ninfa. Los parásitos Trichuris sp., Pterygodematities sp., Turgida turgida, Viannaia sp. y Podospathalium pedatum son nuevos registros para el Perú. De igual manera, se registran por primera vez las siguientes asociaciones parásitos-h...

Durante una exhaustiva evaluación de mamíferos y sus parásitos, la cual se llevó a cabo en la Reserva de Biosfera de Manu, Madre de Dios, Perú, se capturaron dos individuos de Atelocynus microtis, perro de orejas cortas, de los cuales se colectaron algunos acantocéfalos. Aunque no fue posible reconocerlos hasta el nivel de especie porque eran especímenes inmaduros, todos fueron identificados como miembros del genero Oncicola Travassos, 1916.

En el mercado de Belén (Iquitos, Perú) se obtuvieron ocho tractos digestivos de Podocnemis expansa y 18 de P. unifilis los que fueron analizados en búsqueda de parásitos, detectándose la presencia de digeneos y nematodos. Solo se estudió los digeneos, los que fueron identificados como Nematophila grandis (Diesing, 1839) Travassos, 1934, Halltrema avitellina Lent & Freitas, 1939, Podocnemitrema papillosum Alho & Vicente, 1964 y Telorchis hagmanni Lent & Freitas, 1937. Halltrema avitellina, Podocnemitrema papillosum y Telorchis hagmanni son nuevos registros para el Perú.

Se identifica a Viscachataenia quadrata Denegri, Dopchiz, Elissondo & Beveridge, 2003 obtenidos del intestino delgado de Lagidium peruanum Meyen, capturados en los departamentos de Lima, Puno y Ayacucho.

Se describe la presencia de Corynosoma obtuscens Lincicome, 1943 (Acanthocephala, Polymor- Corynosoma obtuscens L i n c i c o m e , 1 9 4 3 ( A c a n t h o c e p h a l a , P o l y m o r - Corynosoma obtuscens phidae) en el intestino delgado del zorro andino Pseudalopex culpaeus (Molina, 1782) procedente Pseudalopex culpaeus ( M o l i n a , 1 7 8 2 ) p r o c e d e n t e Pseudalopex culpaeus de San Juan de Marcona, Departamento de Ica, Perú. Esta es la segunda vez que se registra la infección natural de un mamífero terrestre por C. obtuscens en el Perú, por lo que se considera C. obtuscens en el Perú, por lo que se considera C. obtuscens a P. culpaeus como huésped defi nitivo accidental P. culpaeus como huésped defi nitivo accidental P. culpaeus ; además se comenta la posibilidad de que éste acantocefalo infecte al hombre.

En el presente trabajo se reporta, por primera vez en el Perú, la presencia del nemátode Trichostrongylidae Mecistocirrus digitatus (Linstow, 1906) Railliet and Henry, 1912, encontrado en vacunos de Loreto, Perú.

In this paper, the fullest information available about the Acanthocephalan discovered in Peru is presented, but also new hosts.

A parasitology survey was conducted at the Parque de Las Leyendas Zoo in Lima, Peru at 1993. Forty nine stool samples of animals comprehended among five families of carnivores (Canidae, Ursidae, Procyonidae, Mustelidae, and Felidae) were collected and processed using routine methods for helminth ova detection. Three species of Felidae, Puma concolor, (puma andino and puma de la selva), Panthera onca (jaguar) and Leopardus pardalis (ocelot) had been infected with Spirometra mansonoides.

During 2001, eight genera (three identified to species level) of endoparasites were collected from wild mammals and birds in Peru. These collections were part of a large survey along an elevational gradient (470 – 3780 m.) on the Southwestern border of the Manu Biosphere Reserve (Departments of Cusco and Madre de Dios). Parasites were field–fixed in 70% ethyl alcohol and transported to the laboratory, where nematodes were cleared and cestodes were stained using standard procedures. Identification of some specimens was impossible. Nonetheless, the material is of exceptional interest because it includes the first Peruvian records of some taxa. Our findings include: Rhopalias caballeroi Kifune and Uyema, 1982, Rhopalias sp. (probable n. sp.), Taenia pisiformis Bloch, 1780 (cysticercus), Mesocestoides sp. (tetratyridia), Aprocta sp., Evaginuris branicki Mc Clure, 1932, Haematospiculum sp...