Beckianum beckianum - The landshells of the species <i>Beckianum beckianum</i> <small>(Pfeiffer, 1846)</small> photographed in Pindamonhangaba - southeast of Brazil - state of São Paulo (2018). Together a grain of rice for comparison with their shells. © Mário NET - CC BY-SA 4.0 - Wikimedia Commons
Marais de Kaw-Roura - Nouragues