Las náyades de la península Ibérica

Abstract

We make available information about the original description, synonyms, taxonomy, distribution, morphology, life cycle, habitat and conservation status of the ten species of native naiads (bivalve mollusks belonging to the superfamily Unionoidea) of the Iberian Peninsula: <em>Margaritifera auricularia </em>(Spengler, 1793), <em>M. margaritifera </em>(L., 1758), <em>Potomida littoralis </em>(Cuvier, 1798), <em>Unio mancus </em>Lamarck, 1819, <em>U. gibbus </em>Spengler, 1793, <em>U. delphinus </em>Spengler, 1793, <em>U. tumidiformis </em>Castro, 1885, <em>U. ravoisieri </em>Deshayes, 1847, <em>Anodonta anatina </em>(L., 1758) and <em>A. cygnea </em>(L., 1758). <em>Unio delphinus</em>, Spengler, 1793 is reinstated as the valid name for the Iberian species known hitherto as <em>Unio pictorum</em>, and the occurrence of <em>Unio ravoisieri </em>Deshayes, 1847 is reported for the first time in the Iberian Peninsula.<br> We also provide drawings of the shells and anatomical details of all species, and include information, when known, about the shape and dimensions of glochidia as well as about host fish.<br> Recommendations are given to authorities responsible for biodiversity management to ensure the conservation of this threatened animal group.