In this study, we report the parasitism by sparganum of tapeworm Spirometra sp. in amphibians: Pristimantis nephophilus and Pristimantis rhodostichus, from the department of San Martin, Peru. We collected three filiform structures located at the subcutaneous and identified as sparganum. The finding of this metacestode is the first record in amphibians of Peru, and shows that frogs P. nephophilus and P. rhodostichus are new intermediate hosts for Spirometra sp.

The nematode Synhimantus (Dispharynx) nasuta (Rudolphi, 1819) Chabaud, 1975 parasiting the proventriculus of two chicks of Common Peafowl (Pavo cristatus Linnaeus, 1758) in captivity from Lima, Peru is described.

Four species of acanthocephalan (Oligacanthorhynchidae) were studied. Two species are new geographical records. Additionally, Oligacanthorhynchus carinii and Oligacanthorhynchus major are registered for the first time in Peru.

It is the first record of cestode Crepidobothrium gerrardii in Peru, parasitizing the intestine of a boa constrictor (Boa constrictor) from Loreto. Four tapeworms were studied and identified as C. gerrardii.

We report for first time the presence of nematode, Ascaridia hermaphrodita Froelich, 1789, parasiting small intestine  of a Blue-Headed Parrot (Pionus menstruus Linnaeus, 1776). The specimen was sent to Avian Pathology Laboratory of Veterinary School of San Marcos University, Lima, Peru. Eighteen nematodes (12 females and 6 males) were studied and identified as A. hermaphrodita. The dicovery of this specie in P. menstruus  is the first record in Perú.

We report for first time the presence of nematode, Serratospiculum tendo Nitzsch, 1819, parasitizing air sacs of a Peregrine Falcon (Falco peregrinus Tunstall, 1771). Six nematodes (2 males and 4 females) were collected and identified as S. tendo. The discovery of this nematode is the first record in Peru.

Two ascaridoid nematodes are recorded by Peru: Hysterothylacium pelagicum parasitizing to common dolphinfish (Coryphaena hippurus) from a market of Lima and Toxocara alienata in a collared peccary (Pecari tajacu) from Iquitos. Likewise, it is made a morphological description of the nematodes.

Two species of ectoparasites were collected from a South American sea lion (Otaria flavescens) found stranded on the beaches of Chorrillos in Lima, Peru. The ectoparasites were identified as Antarctophthirus microchir (Phthiraptera) and Orthohalarachne attenuata (Acari). Some morphological characteristics are described in this report. The finding of these ectoparasites is the first records in Peru.

An error is in the article First records of Hysterothylacium pelagicum (Anisakidae) and Toxocara alienata (Toxocaridae) from Peru published in Revista Peruana de Biologia (2014) 21 (2): 171-174. DOI: http://dx.doi.org/10.15381/rpb.v21i2.9820 The error is referred to Table 1. Some measures of Hysterothylacium pelagicum are not reported correctly. Here, present the table that should be considered.

Nine species of Mallophaga from Peruvian birds are reported in this work. Two Mallophaga Amblycera: Heteromenopon laticapitis y Menacanthus pici, as well as seven Mallophaga Ischnocera: Alcedoffula theresae, Brueelia brunneinucha, Chelopistes meleagridis, Columbicola columbae, Paragoniocotes aratingae, Penenirmus jungens y Saemundssonia (Saemundssonia) lari, were identified morphologically. A brief description of each chewing lice and discussion about their hosts and distribution is done.

This study presents three species of helminth parasites collected from a taruca (Hippocamelus antisensis) in Peru. Three helminth parasites from the taruca (Hippocamelus antisensis) are described in this report. An adult male taruca was remitted to the Veterinary Institute of Tropical and Highland Research (IVITA), Sede Maranganí, for the National Forest and Wildlife Service of Peru (SERFOR) for their respective necropsy. Two nematodes were collected from the digestive system, and 1 cyst was collected from the omentum. Morphometric characteristics of the specimens were evaluated for the parasitological diagnosis. Nematodes were diagnosed as Trichostrongylus axei and Mazamastrongylus sp.; on the other hand, the cyst was diagnosed as a metacestode of Taenia hydatigena. T. axei finding represents the first record for the taruca. A brief morphological description of each helminth and discus...

Cricocephalus albus (Digenea: Pronocephalidae) is registered for first time in Peru in the East Pacific green turtle (Chelonia mydas agassizii). The parasites were collected during a necropsy carried out in a stranded sea turtle in the Virrilá estuary, located in the Sechura province of Piura, Peru. The specimens were studied morphologically and identified as C. albus. The current work describes C. albus, as well as the discussion of its hosts and geographic distribution.

Metacestodes were collected from the peritoneal cavity of the yellow-rumped leaf-eared mouse (Phyllotis xanthopygus) from the Marangani district in Cuzco, Peru. A total of 6 metacestodes were studied and identified as fimbriocercus of Taenia sp. The fimbriocercus had a slightly elongated and spherical body, with a mass of dense tissue and whitish milky color. Each fimbriocercus had an invaginated scolex which had 4 suckers and a rostellum armed with 22 to 25 pairs of hooks. This study shows that the mouse P. xanthopygus participates as an intermediate host for a Taenia species in the southern highlands of Peru.

This study presents twelve species of Mallophaga collected from birds held in captive in a temporary or permanent enclosure in Peru. Four Mallophaga Amblycera: Colpocephalum turbinatum, Psittacobrosus amazonicus, Psittacobrosus burmeisteri y Kurodaia sp., as well as eight Mallophaga Ischnocera: Neopsittaconirmus gracilis, Paragoniocotes fulvofasciatus, Paragoniocotes mirabilis, Paragoniocotes nanus, Paragoniocotes neivai, Paragoniocotes pyrrhurae, Philoceanus amadoni y Quadraceps burhinoides, were identified morphologically. A brief description of each chewing lice and discussion about their hosts and distribution were done.

Un total de 12 cestodos adultos se colectaron de los conductos biliares de ratones domésticos (Mus musculus) provenientes de Lima, Perú. Diversas características del escólex y proglotis maduros del cestodo fueron observadas para la identificación morfológica. Así mismo, se realizó un diagnóstico molecular mediante un PCR y secuenciación parcial del gen mitocondrial citocromo c oxidasa subunidad 1 (cox1). Todos los cestodos fueron identificados como Hymenolepis microstoma por morfología y métodos moleculares. El aislado de H. microstoma de Perú mostró una similitud de secuencia significativa (> 99%) con los aislados de H. microstoma previamente reportados. Nuestro informe confirma la presencia del parásito en ratones de Lima.

Cyclocoelum mutabile, un digeneo de la familia Cyclocoelidae, fue hallado parasitando los sacos aéreos de una polla de agua común (Gallinula chloropus), proveniente de alrededores del Refugio de Vida Silvestre Pantanos de villa, localizada en el distrito de Chorrillos en Lima, Perú. Un total de 7 parásitos fueron colectados e identificados por métodos morfológicos como C. mutabile. El diagnóstico fue confirmado por análisis molecular, amplificando los genes mitocondriales citocromo c oxidasa subunidad 1 (cox1) y deshidrogenasa NADH subunidad 1 (nad1). Las secuencias de nucleótidos de los aislados se compararon con secuencias previas de GenBank, y mostraron una similitud entre ellas (> 96%). Este hallazgo constituye el primer registro de C. mutabile para el Perú. Además, el trabajo realiza una breve descripción del parásito, así como la discusión de sus hospederos y dist...

Natural infection by Fasciola hepatica is recorded in a white-tailed deer (Odocoileus virginianus) and a taruca (Hippocamelus antisensis), both from the department of Cusco. Animals were remitted to the Veterinary Institute (IVITA-Maranganí, FMV, UNMSM) by the authorities of the National Service of Flora and Fauna (SERFOR, Cusco Headquarters). Six trematodes were collected from the bile ducts during the necropsy of the animals, and they were preserved in 70% ethanol. Morphological analysis indicated that they correspond to F. hepatica. This was confirmed by analyzing of the mitochondrial DNA of the parasites by partially amplifying the cytochrome c oxidase subunit 1 (cox1) and the NADH dehydrogenase subunit 1 (nad1) genes. Analysis of these genes had an identity greater than 99% compared to genes from GenBank. The present study demonstrates the occurrence of F. hepatica in these cervids...

Information on parasitic helminths of seabirds is very limited in Peru. In the present work, helminths collected from the Belcher's gull (Larus belcheri) from some beaches of Lima (Pucusana, Chorrillos, Ventanilla and Ancón) in Peru were identified. The helminths were studied morphologically and identified as Skrjabinoclava sp. (Nematoda), Contracaecum sp. (Nematoda), Maritrema sp. (Trematoda) and Profilicollis altmani (Acanthocephala). The present work corresponds to the first records of these parasites in the Peruvian gull.

This report describes the finding of soft ticks (Ixodida, Argasidae) parasitizing two Andean flickers (Colaptes rupicola) from the Nuñoa district, Melgar province in Puno, Peru (14°31'11.77"S; 70°32'15.95''W; elevation 3967 m). A total of 29 larval ticks were collected directly from the birds and morphologically identified as Argas neghmei. Diagnosis was based on the larval morphology and confirmed by molecular analysis of the tick mitochondrial 16S rRNA gene. A sequence of 363 base pair of this gene showed to be 100% identical with sequences of A. neghmei from Argentina and Chile (GenBank: FJ853598 and DQ295781). This finding confirms the presence of A. neghmei in Peru and adds the Andean flicker as a new host for this species.

Three atypical cestodes with abnormal morphology were found in a domestic dog. The cestodes had a scolex with six suction cups and a triradiate strobila. All parasites were gravid cestodes. In addition, the dog was infested with 324 normal cestodes. Both cestodes (normal and abnormal) were morphologically and molecularly identified as Taenia multiceps. The sequences of the cytochrome c oxidase subunit 1 gene of the triradiate cestode and normal cestodes were identical to each other and had more than 99% similarity with other published and recorded sequences for T. multiceps. These findings represent the first record of atypical cestodes and massive cestode infestation by T. multiceps in a dog from Peru.