Taxonomic study on a collection of terrestrial mollusks from the region of Santa Maria, Rio Grande do Sul state, Brazil

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.

Terrestrial gastropods of Humaitá Forest Reserve, southwestern Brazilian Amazon

“…Systrophia helicycloides, in particular, was reported here for first time from Brazil. The remaining newly recorded species (Beckianum beckianum, Leptinaria unilamellata, and Subulina octona) are generalists, inhabiting a variety of habitats and being extremely widespread in the neotropics (Massemin et al 2009;Birckolz et al 2016;Silva et al 2019). Finally, the synonymy of Plekocheilus pentadinus with P. floccosus is here reaffirmed, updating that species known distribution in Brazil, while Solaropsis peruviana is proposed here to be a junior synonym of P. juruana.…”

Revision of the genera of Scolodontidae, part 1: disentangling Happia Bourguignat, 1890 from Austroselenites Kobelt, 1905, Drepanostomella Bourguignat, 1890, Hirtudiscus Hylton Scott, 1973, Luteostriatella gen. nov., and Systrophiella H.B. Baker, 1925

“…Aside from S. pygmea, S. vitrina has been confused with several poorly known and possibly undescribed species of Scolodontidae from Brazil. For instance, Simone (2006), Barbosa (2014), Silva et al (2019), andRangel et al (2021) figured several species with a flatter spire and broadly lunulate aperture under the name "Happia vitrina". These species can be separated from each other by the shape of the aperture, colour, and differences in size.…”

Biodiversidade e saúde na Estação Biológica Fiocruz Mata Atlântica: pesquisa, conservação e educação

“…Tokpelaia hoelldoblerii (SEGERS et al, 2017) foram usados como grupos externos. Os alinhamentos finais de gltA (718 bps), ftsZ (788 bps) e groEL (798 bps) e os genótipos brasileiros de cada gene foram incluídos nas análises (GONÇALVES et al, 2020;CALCHI et al, 2020;ANDRÉ et al, 2019a;ANDRÉ et al, 2019b;PEDRASSANI et al, 2019;SILVA et al, 2019;SOUSA et al, 2018;IKEDA et al, 2017;GONÇALVES et al, 2016a;DINIZ et al, 2016;ANDRÉ et al, 2014;MICELI et al, 2013;FILONI et al, 2012)…”