@article{paraense_2004,  title={Planorbidae, Lymnaeidae and Physidae of Ecuador (Mollusca: Basommatophora)},  volume={99},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02762004000400003},  DOI={10.1590/S0074-02762004000400003},  number={4},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Paraense, W Lobato},  year={2004},  month={Jun},  pages={357–362} }