Corpus ID: 160763980

Physella (Costatella) acuta (Draparnaud, 1805) en las Islas Canarias (Pulmonata Basommatophora: Planorboidea: Physidae)

@inproceedings{Gens2003PhysellaA,
  title={Physella (Costatella) acuta (Draparnaud, 1805) en las Islas Canarias (Pulmonata Basommatophora: Planorboidea: Physidae)},
  author={Miguel Ib{\'a}{\~n}ez Gen{\'i}s and M. Alonso},
  year={2003}
}
El caracol dulceacuicola Physella acuta es una especie todavia imperfectamente conocida a pesar de ser cosmopolita y muy comun, no solo por su problematico origen geografico sino tambien por su variabilidad conquiologica y confusa taxonomia. Se describe aqui una forma anomala de crecimiento de la concha de esta especie, consistente en que la ultima vuelta de espira se extiende formando una especie de visera protectora de la cabeza cuando el animal esta activo. Esto podria ser debido a una… Expand

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