天盖螺属（学名：""）是裂螺科天盖螺亚科之下的一个由小型到中型海螺组成的属。
Life habits.Like all other fissurellids, "Diodora" species are herbivores, and use the 齿舌 to scrape algae from rocks. An exception is "D. apertura", which grazes on sponges such as "".Water for respirat