Biotocus turbinatus
Biotocus turbinatus was a species of land snail, a gastropod in the family Odontostomidae. This species was endemic to Brazil; it is now considered extinct. References

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Odontostomidae
Extinct gastropods
Endemic fauna of Brazil
Extinct animals of Brazil
Gastropods described in 1845
Taxonomy articles created by Polbot
Taxobox binomials not recognized by IUCN