Oliva
Oliva is a genus of small to medium-sized sea snails, marine gastropod mollusks in the family Olividae. The genus was named by French naturalist Jean-Baptiste Lamarck in 1799. Members of this genus are commonly known as olive shells, cowries, or money cowries.
Characteristics
Oliva species are characterized by their smooth, glossy, and often brightly colored shells. The shells are typically ovoid or spindle-shaped, with a narrow aperture and a distinct columellar fold. The outer lip is often thickened and rolled inward. The shell surface is typically smooth, but some species may have fine ridges or grooves. The aperture is narrow and often has a distinct siphonal canal. The operculum is small and horny.
Environment
Oliva snails are found in a variety of marine environments, including sandy beaches, rocky shores, coral reefs, and seagrass beds. They are typically found in shallow water, but some species can live at depths of up to 100 meters. They are carnivorous, feeding mainly on worms, other mollusks, and crustaceans.
Common Names
Common names for Oliva species include:
- Olive shells
- Cowries
- Money cowries
References
For more information on the genus Oliva, consult these reliable references: