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      Intrahost distribution and trasmission of a new species of cyclopoid copepod endosymbiotic to a freshwater snail, Pomacea canaliculata (Caenogastropoda, Ampullariidae) from Argentina

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          Abstract

          A new species of cyclopoid copepod, Ozmana huarpium, is described as a symbiont to Pomacea canaliculata (Lamarck 1822) (Caenogastropoda, Ampullariidae). Rather large numbers (about one hundred copepods per snail) were found, although there was no evidence of harm to the host. To our knowledge, O. haemophila (symbiont to P. maculata), and the currently described species, O. huarpium, are the only copepod species ever recorded as endosymbionts to freshwater invertebrates. While O. haemophila is restricted to the haemocoel of its host, O. huarpium predominate in the penis sheath, the ctenidium and the mantle cavity, figuring in these pallial organs 63-65 % of total mature forms. The sex ratio of the symbiont is skewed to the female side in these organs, specially in male hosts. The hypothesis that a special female tropism for the male host's pallial organs might ensure interindividual transmission of the symbiont was tested, with indications that the symbiont is mainly transmitted during copulation.

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          Most cited references 17

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          Pomacea canaliculata (Gastropoda: Ampullariidae): life-history traits and their plasticity.

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            A new family of cyclopoid copepods (Ozmanidae) parasitic in the hemocoel of a snail from the Brazilian Amazon

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              On neotropicalTemnocephala(Platyhelminthes)

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                Author and article information

                Journal
                biocell
                Biocell
                Biocell
                Sociedad Latinoamericana de Microscopía Electrónica.; Centro Regional de Investigaciones Científicas y Tecnológicas (Mendoza, Argentina) (Mendoza, Mendoza, Argentina )
                0327-9545
                1667-5746
                August 2004
                : 28
                : 2
                : 155-164
                Affiliations
                Mendoza orgnameUniversity of Cuyo orgdiv1School of Medicine orgdiv2Department of Morphology and Physiology Argentina
                Article
                S0327-95452004000200005 S0327-9545(04)02800200005

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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                Figures: 0, Tables: 0, Equations: 0, References: 12, Pages: 10
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