Spongioradsia

Spongioradsia is a genus of polyplacophoran molluscs. Spongioradsia became extinct during the Oligocene period.

Species

 * Spongioradsia aleutica (Dall, 1878)
 * Synonyms:
 * Spongioradsia foveolata Is. Taki, 1938 : synonym of Callochiton foveolatus (Is. Taki, 1938) (original combination)
 * Spongioradsia subaleutica Sirenko, 1976 : synonym of Lepidochitona (Lepidochitona) subaleutica (Sirenko, 1976) (original combination)