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First report of Schulzia travassosi (Nematoda, Trichostrongylina, Molineoidea) for amphibians of the Chaco region in Argentina and proposal of Oswaldocruzia melanostictusi nov. comb.

100%

Gonzalez C. E., Hamann M. I.

Acta Parasitologica

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2015

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tom 60

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nr 4

2

Falcaustra sanjuanensis sp. nov. (Nematoda: Kathlaniidae) from Odontophrynus cf. barrioi (Anura: Cycloramphidae) from Argentina

81%

Gonzalez C. E., Sanabria E. A., Quiroga L. B.

Acta Parasitologica

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2013

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tom 58

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nr 1

Here, we describe a new kathlaniid nematode, Falcaustra sanjuanensis sp. nov., from the large intestine of Odontophrynus cf. barrioi (Anura: Cycloramphidae), from San Juan Province, Argentina. The new species belongs to the Falcaustra group that possesses a pseudosucker. It resembles F. andrias in the distribution pattern of caudal papillae (six precloacal, four adcloacal, 12 postcloacal, one unpaired median anterior to the cloaca) but differs from F. andrias in the following characters: the longer size of males and females (11.17–13.45 mm and 10.1–15.5 mm, respectively); the longer size and form of the gubernaculum (0.17–0.23 mm, triangular form); the arrangement of postcloacal papillae (three pairs on the ventral side, two pairs on the lateral side, one pair on the subventral side) and unpaired papilla anterior to the cloaca located on the protuberance. The species description is based on light microscopy and scanning electron microscopy (SEM). Falcaustra sanjuanensis sp. nov. represents the 12th Neotropical species assigned to the genus. Also, we added a key to Neotropical species of Falcaustra.

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Structure of the helminth community in Dermatonotus muelleri (Anura: Microhylidae) from the driest area of the American Chaco

81%

Gonzalez C. E., Dure M. I., Palomas S. Y., Schaefer E. F.

Annals of Parasitology

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2020

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tom 66

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nr 1

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Presence of Kalicephalus subulatus Molin, 1861 (Nematoda, Diaphanocephalidae) in Wagler’s snake, Xenodon merremi from Argentina

81%

Gonzalez C. E., Schaefer E. F., Dure M. I.

Annals of Parasitology

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2018

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tom 64

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nr 4

This is the first record of the nematode parasite Kalicephalus subulatus (Strongylida, Diaphanocephalidae) in Wagler’s snakes, Xenodon merremi (Squamata, Colubridae), collected in Corrientes, Argentina. The species was observed using light and scanning electron microscope (SEM) and compared to previous studies from Tropical America. As for the metric characters, the specimens collected in Argentina are smaller than all of those found so far in other hosts. However, despite the differences in the measurements, some characters such as the dorsal lobe type III and the amphidelphic uterus allow its specific identification. Previously, this genus was found in X. merremi from Argentina but the absence of males precluded their specific identification.

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Helminth community structure of the oven frog Leptodactylus latinasus [Anura, Leptodactylidae] from Corrientes, Argentina

80%

Hamann M. I., Gonzalez C. E., Kehr A. I.

Acta Parasitologica

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2006

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tom 51

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nr 4

A total of 36 adult individuals of Leptodactylus latinasus were collected near the city of Corrientes, Province of Corrientes in Argentina. The main goals of this study were: (1) to determine the helminth parasite fauna of L. latinasus; (2) to determine the richness and diversity of parasites at the component and infracommunity levels; (3) to analyze the relationships between helminth, frog body size and sex, and (4) to identify and examine species affinity of helminth communities. The helminth component community of this frog’s population consisted of 17 species. The predominant groups of parasites were the trematodes (adults: Glypthelmins repandum, Catadiscus inopinatus and Haematoloechus longiplexus; larvae: Travtrema aff. stenocotyle, Bursotrema aff. tetracotyloides, Styphlodora sp., unknown opisthogonimid species, Petasiger sp. and unknown strigeid species), followed by the nematodes (Cosmocerca podicipinus, C. parva, C. rara, C. cruzi, Schrankiana schranki and Aplectana hylambatis); other groups of parasites were represented by only one species (unknown larval cestode species and Centrorhynchus sp.). All parasite helminth species showed an aggregated pattern of distribution. The most infected organs were kidneys, small intestine, large intestine and pharyngeal zone. The host body size was important in determining the parasites abundance of G. repandum. At the level of component community G. repandum was the species with highest prevalence of infection and Bursotrema aff. tetracotyloides was the dominant species. Helminth species showed four significant pairs of covariation and two significant pairs of association in the infracommunities of Leptodactylus latinasus.

Ograniczanie wyników

3 Acta Parasitologica

2 Annals of Parasitology

5 Gonzalez C. E.

2 Dure M. I.

2 Hamann M. I.

2 Schaefer E. F.

1 Kehr A. I.

1 Palomas S. Y.

1 Quiroga L. B.

1 Sanabria E. A.

1 2020

1 2018

1 2015

1 2013

1 2006

First report of Schulzia travassosi (Nematoda, Trichostrongylina, Molineoidea) for amphibians of the Chaco region in Argentina and proposal of Oswaldocruzia melanostictusi nov. comb.

Falcaustra sanjuanensis sp. nov. (Nematoda: Kathlaniidae) from Odontophrynus cf. barrioi (Anura: Cycloramphidae) from Argentina

Structure of the helminth community in Dermatonotus muelleri (Anura: Microhylidae) from the driest area of the American Chaco

Presence of Kalicephalus subulatus Molin, 1861 (Nematoda, Diaphanocephalidae) in Wagler’s snake, Xenodon merremi from Argentina

Helminth community structure of the oven frog Leptodactylus latinasus [Anura, Leptodactylidae] from Corrientes, Argentina