Discotectonica

Discotectonica is a genus of sea snails, marine gastropod mollusks in the family Architectonicidae, the staircase shells or sundials.

Distribution
This genus occurs in the Atlantic Ocean off the Canaries and West African, in European waters (the Bay of Biscay) and the Mediterranean Sea.

Species
Species within the genus Discotectonica include:
 * Discotectonica acutissima (Sowerby, 1914)
 * Discotectonica alfi Thach, 2017
 * Discotectonica discus (Philippi, 1844)
 * Discotectonica nipponica (Kuroda & Habe in Kuroda, Habe & Oyama, 1971)
 * Discotectonica petasus (Tomlin, 1928)
 * Discotectonica placentalis (Hinds, 1844)
 * Discotectonica pseudoperspective (Brocchi, 1814)