Abstract
The malacological collection of the Universidade Federal de Santa Maria, curated by Dr. Carla B. Kotzian, has been recently donated to the Museu de Zoologia da Universidade de São Paulo (MZSP, Brazil). The collection is rich in well preserved specimens of terrestrial gastropods from central Rio Grande do Sul state, in southernmost Brazil. That region, centered in the municipality of Santa Maria, represents a transitional area between the Atlantic Rainforest and Pampas biomes and has been scarcely reported in the literature. Therefore, we present a taxonomical study of these specimens, complemented by historical material of the MZSP collection. Overall, we report 20 species, mostly belonging to the Stylommatophora, from which four represent new records for Rio Grande do Sul: Adelopoma brasiliense, Happia vitrina, Macrodontes gargantua, and Cyclodontina corderoi. The present report of C. corderoi is also the first from Brazil. Two introduced species were found in the studied material: Bradybaena similaris and Zonitoides sp.
Highlights
The collection is rich in well preserved specimens of terrestrial gastropods from central Rio Grande do Sul state, in southernmost Brazil
We report 20 species, mostly belonging to the Stylommatophora, from which four represent new records for Rio Grande do Sul: Adelopoma brasiliense, Happia vitrina, Macrodontes gargantua, and Cyclodontina corderoi
Dr Carla Bender Kotzian, who worked in the Universidade Federal de Santa Maria (UFSM, Brazil), transfered the collection guard of Recent mollusks to the Museu de Zoologia da Universidade de São Paulo (MZSP, Brazil)
Summary
Dr Carla Bender Kotzian, who worked in the Universidade Federal de Santa Maria (UFSM, Brazil), transfered the collection guard of Recent mollusks to the Museu de Zoologia da Universidade de São Paulo (MZSP, Brazil). Among the material of this collection, our attention was drawn to the specimens of terrestrial gastropods from the central region of Rio Grande do Sul state (centered in the municipality of Santa Maria), which proved to be rather abundant and in a good preservation state. With the intention of bringing new information on the terrestrial gastropod fauna of a scarcely sampled region, we present the species from the Santa Maria region found in the former UFSM collection, complemented by further historical material deposited in the collection of the MZSP. We report 20 species, mostly belonging to Stylommatophora, from which three represent new distribution records. F.S. et al.: Mollusks from the region of Santa Maria, Rio Grande do Sul state, Brazil
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