The community of gastrointestinal helminths in the housemouse, Mus musculus, in Santiago, Chile

The house mouse, Mus musculus, has been present in Chile since approximately 1600 AD and it is the most tipically synanthropic rodent in Chile. In order to know its parasites a survey was conducted in three different localities in Santiago. The helminthes community was poor in species and only three nematodes species were found: Syphacia obvelata,Aspiculuris tetraptera and Physaloptera calnuensl All these species constitutes the first record in Chile. This is also the first record of P. calnuensis in this host. Syphacia obvelata was the most abundant and the most prevalent.

El ratón doméstico, Mus musculus, está en Chile desde aproximadamente el 1600 DC. y es el más sinantrópico de los roedores chilenos. Para conocer sus parásitos se realizó un estudio en tres diferentes localidades de Santiago. La comunidad de helmintos fue pobre en especies y sólo se encontraron tres especies de helmintos: Syphacia obvelata, Aspiculuris tetraptera y Physaloptera calnuensis; todas estas especies constituyen el primer registro para Chile. Esté es también el primer hallazgo de P. calnuensis en este hospedador. Syphacia obvelata fue la especie más prevalente y abundante.

Occurrence of Tetrameres confusa (Nematoda, Tetrameridae) in Ara ararauna (Psittacidae)

Relata-se a ocorrência de Tetrameres confusa Travassos 1917 (= T. americana (Cram, 1927) Baylis, 1929) (Nematoda, Tetrameridae) em um novo hospedeiro, Ara ararauna Linnaeus, 1758 (Aves, Psittacidae). Este é o primeiro registro da ocorrência do nematódeo em psitacídeos no Brasil.

New host and locality records for Tetrameres (Gynaecophila) spirospiculum Pinto & Vicente, 1995 (Nematoda: Tetrameridae), with new morphological data

We report the finding of Tetrameres spirospiculum Pinto & Vicente, 1995 from Theristicus melanopis melanopis (Threskiornithidae) from Patagonia, Argentina. These constitute new host and locality records. We propose the assignation of this species to the subgenus T. (Gynaecophila) Gubanov, 1950, based on the presence of labia and the absence of cuticular flanges at the anterior end. Some new morphological data are provided, such as the arrangement of cuticular spines and the presence of a pair of somatic papillae at beginning of posterior third of body length. T. (G.) spirospiculum may probably be regarded as specific to birds of the genus Theristicus

Physaloptera lutzi (nematoda, physalopteridae) parásito de liolaemus (iguania, tropiduridae) del noroeste argentino / Physaloptera lutzi (nematoda, physalopteridae) parasite from liolaemus (iguania, tropiduridae) from north-western Argentina

Specimens collected in several localities from and Tucumán provinces (north-western Argentina) Liolaemus quilmes and L. ornatus (oviparous population), and L. alticolor (viviparous population) were dissected. The specimens of lizards examinated have nematodes, in stomach, fore-gut and cloaca, identified as Physaloptera lutzi Guimaraes, Cristófaro and Rodrigues, 1976. This represents the first record for this parasite from Liolaemus species in Argentina. Morphologic and morphometric parasitological studies were done. The specimens were drawned and photographed. Also, the following parasitic infection indexes were calculated: prevalence, mean and maximun intensity

Gnathostoma spinigerum Owen, 1836 (Nematoda: Gnathostomidae) from a civet cat, Prionodon linsang Hardwick, with reference to its dietary habits.

The recovery of six adult Gnathostoma spinigerum Owen, 1936 from a civet cat, Prionodon linsang Hardwick, constitutes the second reported record of this parasite and the first authenticated case of adult worms found in a wild animal from Malaysia. The food habits of the infected P. linsang as an important link in the transmission of G. spinigerum in the intermediate and definitive hosts together with the probable distribution of this parasite are discussed.