Notes on a new collection of streptaxidae (Gastropoda: Stylommatophora) from Brazil, with descriptions of two new species of streptaxis

Abstract

A large collection of mollusks was recently acquired by the Museu de Zoologia da Universidade de São Paulo (Brazil) from a commercial company. In this collection, the specimens of the family Streptaxidae from Brazil are both diverse and relatively abundant and are examined here. Herein are reported new records of 11 species, greatly extending the geographical range of the following: Rectartemon depressus (Heynemann, 1868), R. iguapensis ( Pilsbry, 1930), R. piquetensis (Pilsbry, 1930) and Streptartemon extraneus (Haas, 1955). Additionally, two new species are described: Streptaxis leirae sp. nov. and Streptaxis megahelix sp. nov.