An analysis of the type, paratypes, cystacanths and intermediate host of Polymorphus bullocki Mateo, Córdova and Guzmán, 1982 make evident that is conspecific with Profilicollis altmani (Perry, 1942) Van Cleave, 1947.

In this paper, Copiatestes filiferus (Leukart, in Sars, 1885) Gibson and Bray, 1977 (Digenea) and Gorgorhynchus sp. (Acanthocephala) parasites of Hemilutjanus macrophthalmos (Teleostei), both parasites are new records from Peru and the fish is a new host.

In Condebamba Valley (Cajamarca) between February and July 1973; 69 crabs Pseudothelphusa chilensis were collected, of them (34 males and 35 females) 22 (64.7%) males and 29 (28.85%) females were infected with metacercariae, this results are consistent with Cuba et al. (1974) report.

The objective of the present work was to identify nematodes obtained post mortem from the small intestine of Pithecia monachus bred in captivity in Iquitos, Peru. The identification was made observing the morphology and anatomy of the female specimens of the intestine of the host and of males and females obtained by culture. All specimens were identified as Strongyloides stercoralis. It is concluded that this species is found for the first time in a primate in Peru.

El objetivo del presente trabajo fue identificar unos nematodos obtenidos post mortem del intestino delgado de Pithecia monachus criado en cautiverio en Iquitos, Perú. La identificación se hizo observando la morfología y anatomía de los especímenes hembras del intestino del hospedero y de machos y hembras obtenidos por cultivo. Todos los especímenes se identificaron como de Strongyloides stercoralis. Se concluye que esta especie se encuentra por primera vez en un primate en el Perú.

An analysis of the type, paratypes, cystacanths and intermediate host of Polymorphus bullocki Mateo, Córdova and Guzmán, 1982 make evident that is conspecific with Profilicollis altmani (Perry, 1942) Van Cleave, 1947.

In this paper, Copiatestes filiferus (Leukart, in Sars, 1885) Gibson and Bray, 1977 (Digenea) and Gorgorhynchus sp. (Acanthocephala) parasites of Hemilutjanus macrophthalmos (Teleostei), both parasites are new records from Peru and the fish is a new host.

En los meses de febrero y julio de 1973 se colectaron cangrejos del Valle de Condebamba (Cajamarca) correspondientes a Pseudothelphusa chilensis, 69 de ellos (34 machos y 35 hembras) fueron examinados, buscando metacercarias de Paragonimus; 22 (64.7%) de los machos y 29 (28.85 %) de las hembras resultaron infectados con metacercarias, o sea 52 (72.46%) de los 69 cangrejos estaban infectados, esta cifra es coincidente con la obtenida por Cuba y cols. (1974).

En este trabajo, presentamos algunos helmintos que parasitan a scomber japonicus "caballa", de la Reserva Nacional de paracas (Ica). S. japonicus es un nuevo huesped para larvas de Corynosoma obtuscens.

It has been studied the presence of Fasciola hepatica L., in Huinco, place without livestock, localized in the Province of Huarochiri, Department of Lima, September 1971 and July 1972. Lymnoea viator and Physa venustula were examined looking for stages of F. hepatica and it was also performed exam of feces of the human population Iookíng for eggs of the parasite. Only L. viator snails were found infected by F. hepatica, it was confirmed with the presence of adult parasites in the biliary tract of mice infected with metacercaría obtained from L. viatar. The human infection by F. hepatica was low (0.88%). No being Huinco place for livestock, it was concluded the infection of the snails by F. hepatica could happen when the eggs arrive through the water coming from livestock places localized in higher areas than Huinco.

Se determina la presencia de Fasciola hepatica L., en la localidad de Huinco, zona no ganadera de la Provincia de Huarochirí, Departamento de Lima, setiembre 1971 - julio de 1972. Se examinaron caracoles Lymnaea viator y Physa venustula en busco de estadios evolutivos de F. hepatica, así como exámenes de heces de la población humana en busca de huevos del parásito. Se encontraron caracoles L. viator infectados con estadios larvarios de Fasciola, lo cual se comprobó al desarrollarse ejemplares adultos del parásito en las vías biliares de ratones que fueron infectados con metacercarias obtenidas de los caracoles. La infección humana por Fasciola hepatica fue bajo (0.88%). No existiendo ganadería en la localidad, se concluye que la infección del caracol ocurre por lo llegada a Huinco de huevos de F. hepatica por los cursos de agua de localidades ganaderos situadas en zonas más a...

En este trabajo, presentamos algunos helmintos que parasitan a scomber japonicus "caballa", de la Reserva Nacional de paracas (Ica). S. japonicus es un nuevo huesped para larvas de Corynosoma obtuscens.

Tribolium castaneum (Herbst) is reported as new intermediate host of Hymenolepis diminuta from Peru.

En 1970 Tió Y Guerrero, al estudiar los parásitos de Cavia aperea Erxl de las localidades de Canas y Canchis, en el Cuzco, Perú, encontraron que el 28 % de ellos estaban parasitados con Monoecocestus sp. cestodo Anoplocephalideo.

The aim of this study was to identify gastrointestinal parasites in wild carnivores from the Parque de Las Leyendas Zoo in Peru by four conventional coproparasitological methods (direct, Ritchie modified Sheather and the Ziehl Neelsen method for coccidia). A total of 62 animals of 15 species from six families were sampled. Results showed that 25.8% (16/62) of the samples were positive to parasites. Panthera leo, Panthera tigris and Lycalopex sechurae were the most affected species (9/9, 2/3, and 3/5 respectively). The parasites identified were the nematode Toxascaris leonina (12/16), the acanthocephalan Corynosoma sp (3/16), the cestode Atriotaenia sp (1/6) and the protozoo Giardia sp (1/6). No significant association was found between the variables age and sex.

El presente trabajo tuvo por objetivo identificar los parásitos gastrointestinales de carnívoros silvestres del Zoológico Parque de Las Leyendas en el Perú, mediante la aplicación de cuatro métodos coproparasitológicos convencionales (directo, de Ritchie modificado, Sheather y la coloración de Ziehl Neelsen). Se trabajó con 62 ejemplares pertenecientes a 17 especies de seis familias. El 25.8% (16/62) de las muestras fueron positivas a parásitos. Panthera leo, Panthera tigris y Lycalopex sechurae fueron las especies más parasitadas (9/9, 2/3 y 3/5, respectivamente). Los parásitos identificados fueron el nematodo Toxascaris leonina (12/16), el acantocéfalo Corynosoma sp (3/16), el cestodo Atriotaenia sp (1/6) y el protozoo Giardia sp. (1/16). No se encontró asociación estadística entre las variables de edad y sexo.

Tribolium castaneum (Herbst) is reported as new intermediate host of Hymenolepis diminuta from Peru.

In 1970 Tió and Guerrero studied parasites of Cavia aperea Erxl from Canchis and Canas in Cuzco, Peru, they found that 28% of C. aperea were parasitized with Monoecocestus sp. cestodo Anoplocephalideo.

In the present work, Tricholeiperia peruensis. n sp. (Nematoda, Molineidae) is described on the basis of 25 collected specimens from 5 bat intestines of the Lophostoma silvicolum occidentalis species from Angostura, district of Pampas de Hospital, department of Tumbes, Peru. The new species is characterized by the morphology of the cephalic vesicle in the form of hood with recesses, for the size and form of spikes whose distal end of the external branch is divided in 2 from which the internal branch undergoes a new division; by the disposition of the ribs of the copulatory apparatus where, among others details, the pre- and post ventral ribs are separated and the external-dorsal ribs begin near the half of the dorsal trunk and are heavy.

Fecal samples for the identification of helminthes were collected from three species of snakes (Boa contrictor “boa” or “mantona”, Epicrates cenchria “mantona roja” or “arco iris”, Corallus caninus “boa verde” or “boa esmeralda”) reared in captivity. The identified parasites, either through eggs or larva were: Kalicephalus sp., Ophiotaenia sp., Rhabdias sp., Ophidascaris sp., and Hymenolepis diminuta. The results indicated that 79% of adult female Boa constrictor and 46% of their offspring, 71% of E. cenchria and 70% of C. caninus were positive, either to single or multiple infections. These data showed that boas reared in captivity were highly parasitized with intestinal and pulmonary helminthes.