MolluscaBase taxon details
original description
(of Helix pyramidella (Spix, 1827)) Wagner, J. A. (1827). <i>Testacea fluviatilia quae in itinere per Brasiliam annis MDCCCXVII-MDCCCXX [1817-1820] jussu et auspiciis Maximiliani Josephi I. Bavariae Regis augustissimi suscepto, collegit et pingenda curavit Dr. J. B. de Spix (...), digessit, descripsit et observationibus illustravit Dr. J. A. Wagner</i>. Munich: C. Wolf. pp. i-iv, 1-36, plates 1-29. , available online at https://biodiversitylibrary.org/page/39465053
page(s): 22 [details]
original description
(of Helicina pyramidella Spix, 1827) Wagner, J. A. (1827). <i>Testacea fluviatilia quae in itinere per Brasiliam annis MDCCCXVII-MDCCCXX [1817-1820] jussu et auspiciis Maximiliani Josephi I. Bavariae Regis augustissimi suscepto, collegit et pingenda curavit Dr. J. B. de Spix (...), digessit, descripsit et observationibus illustravit Dr. J. A. Wagner</i>. Munich: C. Wolf. pp. i-iv, 1-36, plates 1-29. , available online at https://biodiversitylibrary.org/page/39465053
page(s): pl. 16 figs 1-2 [details]
basis of record
Simone, L. R. L. (2006). <i>Land and Freshwater Molluscs of Brazil</i>. Editora Grafíca Bernardi, FAPESP. São Paulo, 390 pp.
page(s): 148, Fig. 499 [details]