Joaquim Júlio Vicente

Nematóides do Brasil. Parte V: nematóides de mamíferos

A survey of nematode species parasitizing Brazilian mammals is presented, with enough data to provide their specific identification. The tirst section refers to the survey ofthe species, related to 21 superfamilies, 45 families, 160 genera and 495 species that are illustrated and measurement tables are given. The second section is concerned to the catalogue ofhost mammals which includes 34 families, 176 species and their respective parasite nematodes. The identification of these helminths is achieved by means of keys to the superfamilies, families and genera. Specific determination is induced through the figures and tables as above mentioned.

Nematóides do Brasil. Parte IV: nematóides de aves

A survey of nematode species parasitizing Brazilian birds is presented, with enough data to provide their specific identification. The first section refers to the survey of the species, related to 17 superfamilies, 23 families, 75 genera and 257 species that are illustrated and measurement tables are given. The second section is concerned to the catalogue of host birds which includes 54 families. 361 species. and their respective parasite nematodes. The identification of these helminths is achieved by means of keys to the superfamilies. families and genera. Specific determination is induced through the figures and tables as above mentioned.

Nematóides do Brasil. Parte III: nematóides de répteis

A survey of nematode species parasizing Brazilian reptiles is presented, with data enough to provide their specific identification. The first section refers to the catalogation of the species, related to 127 superfamilies, 23 families, 55 genera and 121 species that are figured and included in measurement tables. The second section is concerned to the catalogue of host reptiles, with 16 families, and 90 species and their respective parasite nematodes. The identification of these helminths is achieved by means of keys to the superfamilies, families and genera. Specific determination is induced through the figures and tables as above mentioned.

Helminth parasites of conventionally mantained laboratory mice

The spectrum of intestinal parasites present in the Swiss Webster, C57B1/6 and DBA/2 mice strains from different animal houses was identified and prevalences compared. Three parasites were observed during the course of this study, namely the cestode Vampirolepis nana (Siebold, 1852) Spasskii, 1954 (= Hymenolepis nana) and the nematodes Aspiculuris tetraptera (Nitzsch, 1821) Schultz, 1924 and Syphacia obvelata (Rudolphi, 1802) Seurat, 1916. The scope of this investigation has been widened to also include morphometric data on the parasites, to further simplify their identification, since the presence of helminths in laboratory animals is regarded as a restricting factor for the proper attainment of experimental protocols.

Nematode infection patterns in four sympatric lizards from a restinga habitat (Jurubatiba) in Rio de Janeiro state, southeastern Brazil

Specimens of the four most abundant diurnal lizards ( Tropidurus torquatus, Cnemidophorus littoralis, Mabuya macrorhyncha and M. agilis ) inhabiting the restinga of Jurubatiba, Rio de Janeiro state, Brazil were examined for nematodes. Eight species of nematodes were found. Tropidurus torquatus had the richest (8 species) and most diverse nematode fauna, whereas that of C. littoralis was the poorest (2 species) and less diverse. Tropidurus torquatus also had the highest overall prevalence (92%) and mean infection intensity (37.2; standard deviation 82.0; range 2-549). Similarities in nematode faunal composition between host species was generally low, except between the two Mabuya species.

Nematóides do Brasil 2ª parte: nematóides de anfíbios

Sao reunidas neste trabalho todas as especies de nematoides parasitas de anfibios encontradas no Brasil, com dados suficientes para a sua identificacao especifica. Na primeira parte que e o catalogo dos nematoides parasitos de anfibios, sao relacionadas nove superfamilias, quatorze familias, vinte e quatro generos e sessenta e tres especies, sendo que destas, sao dadas figuras e medidas. Na segunda parte que e o catalogo dos anfibios hospedeiros, todos pertencentes a ordem Anura, sao referidas seis familias e cinquenta e cinco especies de anfibios, estas com os nematoides respectivos. A identificacao dos nematoides e auxiliada por chaves de determinacao das superfamilias, familias e generos, sendo a identificacao especifica feita atraves de quadros de medidas e figuras.

Nematóides do Brasil: nematóides de peixes atualização: 1985-1998

Fifty-three nematode species, related to 9 superfamilies, 13 families and 26 genera, recovered from Brazilian fishes, represented by 75 host species are presented. Thirty-eight nematode species, out of the 53 reported, are also illustrated and included in measurement tables, one is listed and figured, and two only listed. Data on family, genus and subgenus level, are provided.

Helminths infecting Mabuya dorsivittata (Lacertilia, Scincidae) from a high-altitude habitat in Itatiaia National Park, Rio de Janeiro State, Southeastern Brazil

We analysed the helminth fauna associated with the lizard Mabuya dorsivittata (Scincidae) from a high-altitude area in Itatiaia National Park, Rio de Janeiro State, Brazil. Of the 16 lizards examined, 12 (75%) were infected by at least one helminth. Only two helminth species were found: Physaloptera retusa and Skrjabinodon spinosulus (Nematoda), the former with a prevalence of 68.8% and a mean infection intensity of 3.6 +/- 2.8 and the latter with a prevalence of 56.3% and a mean infection intensity of 2.6 +/- 2.6. The helminth fauna of the studied population of Mabuya dorsivittata was considerably poorer than those of other previously studied populations of congeners.

Nematode parasites of marsupials and small rodents from the Brazilian Atlantic Forest in the State of Rio de Janeiro, Brazil

Nematodes from opossums and rodents captured in the Brazilian Atlantic Forest in the State of Rio de Janeiro, Brazil were studied. From the opossums Didelphis aurita Weid-Neuweid, 1826 and Philander opossum (Linnaeus, 1758) the following nematode species were recovered: Viannaia hamata Travassos, 1914, Aspidodera raillieti Travassos, 1913, Cruzia tentaculata (Rudolphi, 1819), Travassos, 1917, Turgida turgida (Rudolphi, 1819) Travassos, 1919, Gongylonemoides marsupialis (Vaz & Pereira, 1934) Freitas & Lent, 1937, Viannaia viannai Travassos, 1914, Spirura guianensis (Ortlepp, 1924) Chitwood, 1938 and from the rodents Akodon cursor (Winger, 1887), Nectomys squamipes (Brants, 1827), Oligoryzomys eliurus (Wagner, 1845) and Oryzomys intermedius (Leche, 1886): Hassalstrongylus epsilon (Travassos, 1937) Durette-Desset, 1971, Syphacia obvelata (Rudolphi, 1802) Seurat, 1916, S. venteli Travassos, 1937, Physaloptera bispiculata Vaz & Pereira, 1935, Litomosoides carinii (Travassos, 1919) Vaz, 1934, Viannaia viannai, Hassalstrongylus epsilon, H. zeta (Travassos, 1937) Durette-Desset, 1971, Stilestrongylus aculeata (Travassos, 1918) Durette-Desset, 1971 S. eta (Travassos, 1937) Durette-Desset, 1971. Highest worm burdens and prevalences were those related to Cruzia tentaculata in marsupials. Stilestrongylus aculeata was referred for the first time in Akodon cursor.

Helminths of the exotic lizard Hemidactylus mabouia from a rock outcrop area in southeastern Brazil.

The helminth fauna of 291 Hemidactylus mabouia (Lacertilia: Gekkonidae) from a rock outcrop area in the state of São Paulo, Southeastern Brazil, was studied. Five species were recovered, namely one unidentified species of centrorhynchid acanthocephalan (present only as cystacanths) and the nematodes Parapharyngodon sceleratus, P. largitor (Oxyuroidea: Pharingodonidae), Physaloptera sp. (Spiruroidea: Physalopteridae) and one indeterminate species of Acuariidae (Acuaroidea), with the latter two forms present only as larvae. Infection rates tended to increase with host size, but appeared to be unaffected by season. Hemidactylus mabouia shared most of its helminth fauna with two other sympatric lizard hosts, Mabuya frenata and Tropidurus itambere. The helminth assemblage of the H. mabouia population appears to have been entirely acquired by this exotic gecko from the local helminth species pool, rather than possessing any species from the parasite faunas of the original African populations.