Ultrastructure du spermatozoïde d’un Cestode Tetraphyllidea Phyllobothriidae : Echeneibothrium beauchampi, Euzet, 1959
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چکیده
منابع مشابه
Cestode Parasites in Potamotrygon motoro (Natterer) (Chondrichthyes: Potamotrygonidae) from Southwestern Brazil, including Rhinebothroides mclennanae n. sp. (Tetraphyllidea: Phyllobothriidae), and a Revised Host-Parasite Checklist for Helminths Inhabiting
Specimens of 5 species of cestodes were collected in 6 specimens of the freshwater stingray species Potamotrygon motoro (Natterer), collected in the vicinity of Corumba, Mato Grosso do Sul, Brazil. Acanthobothrium regoi, Potamotrygonocestus orinocoensis, Rhinebothroides venezuelensis, and Rhinebothrium paratrygoni are reported from P. motoro and from southwestern Brazil for the first time. Rhin...
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Extensive new collections of specimens of Rhinebothroides spp. from a wide range of Neotropical freshwater potamotrygonid stingrays in numerous localities permitted critical evaluation of the validity of the 7 nominal species in the genus. Some qualitative characters previously used in the taxonomy of this group are highly variable within and among populations, and most morphometric and meristi...
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This paper describes the ultrastructure of spermiogenesis and the mature spermatozoon of two Dipylidiidae cestodes, Joyeuxiella echinorhynchoides and J. pasqualei. In both species, spermiogenesis follows the type III described by Bâ and Marchand for the cyclophyllideans. Nevertheless, it is interesting to note the presence of striated roots associated with the centrioles. The spermatozoon prese...
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Anthobothrium galeorhini n. sp. (Eucestoda: Phyllobothriidae) collected from the spiral intestine of Galeorhinus galeus (Linnaeus, 1758) at the Puerto Madryn (Atlantic coastal region) is described. The new species differs from A. cornucopia as described by Euzet (1959) by the size of body, bothridia, gravid proglottids and eggs; by the neck length and by the different number of testes and progl...
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The ulrastructural morphology of the cestode Bothriocephalus acheilognathi (Yamaguti, 1934) has been studied by SEM (scanning electron microscopy) and TEM (transmission electron microscopy). This parasite was isolated from the Schizothorax species from fresh water bodies of Kashmir. Adult Bothriocephalus acheilognathi ranged from 3.5 to 13.5 cm long and 0.36 to 1.44 mm wide. This cestode presen...
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ژورنال
عنوان ژورنال: Annales de Parasitologie Humaine et Comparée
سال: 1976
ISSN: 0003-4150
DOI: 10.1051/parasite/1976516673