Members of the genus Pyreneola have minute shells, 5 mm or less long. They are elongate biconic in shape and smooth, with a narrow aperture, a thickened columella, and a parietal shield that is detached along the edge. Markings typically include axial brown lines or nested sets of chevrons on a white or unpigmented shell. Type species (by monotypy) Pyreneola abyssicola (Brazier, 1877).