Lepetellida
Lepetellida is an order of small, marine snails in the subclass Patellogastropoda. This order contains two families: Lepetellidae and Neolepetellidae. These snails are characterized by their conical or limpet-shaped shells and their ability to live in a wide range of marine environments, from shallow intertidal zones to deep-sea habitats. Lepetellids are often referred to as “keyhole limpets” or “deep-sea limpets” due to their distinctive shell shape and habitat preferences.
Characteristics
Lepetellids are typically small, ranging in size from a few millimeters to a few centimeters. Their shells are often conical or limpet-shaped, with a characteristic keyhole-shaped aperture at the apex. This aperture serves as an opening for the snail's mantle, which is a fleshy tissue that covers the animal's internal organs. The shells of lepetellids are typically smooth or slightly ornamented with radial ribs or spiral lines. Lepetellids have a well-developed foot, which they use for locomotion and attachment to surfaces.
Environment
Lepetellids are found in a wide range of marine environments, from shallow intertidal zones to deep-sea habitats. They are typically found on rocky substrates, but can also be found on coral reefs, seagrass beds, and other benthic habitats. Lepetellids are known for their ability to tolerate a wide range of environmental conditions, including temperature, salinity, and oxygen levels.
Families
The order Lepetellida consists of two families:
- Lepetellidae: This family is characterized by its small, conical shells and its ability to live in a wide range of marine environments.
- Neolepetellidae: This family is distinguished by its larger, more flattened shells and its preference for deeper water habitats.
References
For further information and references, please see the following links: