Testacea fluviatilia quae in itinere per Brasiliam annis MDCCCXVII-MDCCCXX ... /

@inproceedings{WagnerTestaceaFQ,
  title={Testacea fluviatilia quae in itinere per Brasiliam annis MDCCCXVII-MDCCCXX ... /},
  author={Andreas Johann Wagner and Karl Friedrich Philipp von Martius and Franz Schrank and Johann Baptist von Spix}
}