biomphalaria prona (gastropoda: planorbidae): a morphological and biochemical study

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ID: 154141
1992
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Abstract
Two samples of Biomphalaria prona (Martens, 1873) from Lake Valencia (type locality) and seven from other Venezuelan localities were studied morphologically (shell and reproductive system) and biochemically (allozyme electrophoresis). In spite of marked differences in shell characters, all of them proved indistinguishable under the anatomic and biochemical criteria. So far B. prona has been considered an endemic species, restricted to Lake Valencia. It is now demonstrated that the extralacustrine populations refered to Biomphalaria havanensis (Pfeiffer, 1839) by several authors correspond in shell characters to an extreme variant of B. prona from the Lake and really belong to the last*mentioned species. They may be regarded as the result of a process of directional selection favoring a shell phenotype other than those making up the modal class in the Lake.
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paraense1992memriasbiomphalaria Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;W. Lobato Paraense;J. P. Pointier;B. Delay;A. F. Pernot;R. N. Incani;C. Balzan;P. Chrosciechowski
Journal kurdistan journal of applied research
Year 1992
DOI
10.1590/S0074-02761992000200001
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