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The pseudohermaphroditism of prosobranchs; morphological aspects
Fioroni, P.; Oehlmann, J.; Stroben, E. (1991). The pseudohermaphroditism of prosobranchs; morphological aspects. Zool. Anz. 226(1-2): 1-26
In: Zoologischer Anzeiger. Gustav Fischer Verlag: Jena. ISSN 0044-5231, more
Peer reviewed article  

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Keywords
    Anatomy; Classification; Pollution; Pseudohermaphroditism; Gastropoda [WoRMS]; Invertebrata; Mollusca [WoRMS]; Marine

Authors  Top 
  • Fioroni, P.
  • Oehlmann, J.
  • Stroben, E.

Abstract
    The occurrence and the main morphological aspects of pseudohermaphroditism (PSH) of Prosobranchs (in 69 species of 46 genera) are described. We propose a new classification of the female determined PSH into seven principal stages and three different ways of evolution (types a, b and c; comp. fig. 3). Their occurrence depends on the pollution of the sea and the topography of the coastal environment of the population. 13 further forms of morphological alterations observed in different species are mentioned and the special case of the ovipositor in Mesogastropods is interpreted. Finally, three rare examples of male determined PSH are presented.

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