Summary[edit] Description: Nitidella nitida (Lamarck, 1822) - abapertural view of a glossy dove snail shell, 1.25 cm tall. Family Columbellidae - columbellid snails occupy seagrass beds and rubbly seafloors. They range from being algae grazers to predators to scavengers. Date: 6 March 2011, 18:49. Source: Nitidella nitida (glossy dove snail) (San Salvador Island, Bahamas) 1. Author: James St. John.