Leiostracus
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Leiostracus is a genus of small to medium-sized neotropical, air-breathing land snails, pulmonate gastropod mollusks in family Simpulopsidae.
Leiostracus vittatus
Gastropod
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Gastropods are a vast and diverse group of invertebrates within the phylum Mollusca, comprising the animals commonly known as snails and slugs. With an estimated 65,000 to 80,000 living species, they
Leiostracus
…Leiostracus is a genus of small to medium-sized neotropical, air-breathing land snails, pulmonate gastropod mollusks in family Simpulopsidae. This genus is endemic to South America, occurring in Guyana, Suriname and Brazil…
Gastropod collage
Cepaea nemoralis: a European pulmonate land snail, which has been introduced to many other countries
The shell of Zonitoides nitidus, a small land snail, has dextral coiling, which is typical (but not universal) of gastropod shells.
The shell of Physella acuta, a freshwater snail, which is left-coiling (sinistral).