Navegando por Autor "Silva, Fernanda"
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Item Cave-dwelling gastropods (Mollusca: Gastropoda) of Brazil: state of the art and conservation(2022-07-26) Salvador, Rodrigo Brincalepe ; Silva, Fernanda ; Cavallari, Daniel Caracanhas ; Cunha, Carlo ; Bichuette, Maria ElinaAn up-to-date list of exclusively cave-dwelling gastropod species recorded in Brazil is presented including updated taxonomy, detailed geographic information, and illustration of types. The list includes 18 cave-exclusive (troglobitic) gastropods encompassing 15 land and three freshwater species, with the status of further species pending additional studies. Their unusual morphology and diversity are discussed, as well as their conservation status and prospects in the current Brazilian environmental and political scenario.Item Phylogenetic position of the relict South American genus Idiopyrgus Pilsbry, 1911 (Gastropoda, Truncatelloidea), with the description of two new cave species(2022-09-14) Salvador, Rodrigo Brincalepe ; Silva, Fernanda ; Bichuette, Maria ElinaIdiopyrgus is a relict genus of freshwater snails from Brazil traditionally classified in the family Pomatiopsidae. Herein, we use mo lecular data from newly acquired specimens to test that classification through Bayesian inference phylogenetic analysis. We conclude that Idiopyrgus belongs in the Gondwanan family Tomichiidae, together with the African genus Tomichia and the Australian genus Coxiella. Furthermore, we reassess currently synonymized genus- and species-level names in Idiopyrgus. The genera Hydracme and Aquidauania are considered synonymous with Idiopyrgus. The species I. brasiliensis and I. pilsbryi are restored as accepted species; I. walkeri is considered a taxon inquirendum. Two new species from caves inBahia state are described herein: Idiopyrgus adaman teus sp. nov. and Idiopyrgus minor sp. nov.