• Publications
  • Influence
Ultrastructure of spermatogenesis and sperm development in Saccocoelioides godoyi Kohn & Froes, 1986 (Digenea, Haploporidae).
Ultrastructural observations of spermatogenesis and sperm development of Saccocoelioides godoyi, an intestinal parasite of Leporinus friderici, are described, showing nuclei, mitochondria and two axonemes with the 9+1 configuration. Expand
Spermatogenesis and spermiogenesis in Didymocystis wedli Ariola, 1902 (Didymozoidae, Digenea).
The ultrastructure of the male reproductive system of Didymocystis wedli was studied for the first time, demonstrating spermiogenesis and spermatogenesis at different cell stages. The spermatozoaExpand
Ultrastructural Observations of the Vitelline Cells of Metamicrocotyla macracantha (Monogenea, Microcotylidae)
An electron microscopic study of the vitelline follicles of Metamicrocotyla macracantha (Alexander, 1954) Koratha,1955 showed that they are composed of cells in different stages of development. TheExpand
Redescription of Prosthenhystera obesa (Diesing, 1850) (Callodistomidae, Digenea) with new host records and data on morphological variability
A large morphological variation is demonstrated, mainly in body and testes size and shape, in Prosthenhystera obesa from the gall bladder of Astyanax bimaculatus and from the new hosts, Cynopotamus amazonum and Triurobrycon lundii is redescribed. Expand
Scanning and transmission electron microscopy of the tegument of Paranaella luquei Kohn, Baptista-Farias & Cohen, 2000 (Microcotylidae, Monogenea), parasite of a Brazilian catfish, Hypostomus regani.
The surface topography and ultrastructure of the tegument of Paranaella luquei Kohn, Baptista-Farias & Cohen, 2000, a microcotylid monogenean parasite from the gills of Hypostomus regani (Ihering,Expand
A new species of Nasicola Yamaguti, 1968 (Monogenea: Capsalidae) from the nasal cavities of Thunnnus obesus and a redescription of N. klawei (Stunkard, 1962) from T. albacares off Brazil
Two species of Nasicola Yamaguti, 1968 are described from the nasal cavities of tunas (Thunnus spp.) from off the coast of Brazil: N. brasiliensis n. sp. from T. obesus (Lowe) and the type-species,Expand
A redescription of the morphology of Metamicrocotyla macracantha (Alexander, 1954) Koratha, 1955 (Monogenea, Microcotylidae) from Mugil liza in Brazil
The type-specimens of Metamicrocotyla inoblita Buhrnheim, 1970, from Mugil platanus from Espirito Santo, Brazil, were re-examined and compared with the parasites from M. liza. Expand
Report of Didymocystis wedli Ariola, 1902 (Digenea; Didymozoidae) from Thunnus albacares in Brazil.
Didymocystis wedli a parasite from the gills of Thunnus albacares from the coast of the State of Rio de Janeiro, is described by use of light and scanning electron microscopy. This is the firstExpand
Report of Balanorchis anastrophus in Pará State with surface topography by scanning electron microscopy.
The surface topography as revealed by scanning electron microscope in Balanorchis anastrophus Fischoeder, 1901, from the reticulum of Bos taurus is reported for the first time in the State of Pará, Brazil. Expand