Periclimenes
Periclimenes is a genus of small, brightly colored shrimp belonging to the family Palaemonidae. These shrimp are known for their commensal relationships with other marine organisms, often living in close association with sea anemones, corals, and other invertebrates. Their striking colors and unique adaptations make them fascinating subjects of study for marine biologists.
Common Names
Periclimenes shrimp are commonly known as "commensal shrimp" or "anemone shrimp" due to their frequent association with sea anemones.
Characteristics
Periclimenes shrimp exhibit a wide range of colors and patterns, often mimicking the coloration of their host organism. They typically have slender bodies with long, delicate appendages. Their rostrum, a pointed projection on the head, is usually well-developed and can be used for defense or foraging. These shrimp have a pair of prominent eyes located on stalks, allowing for excellent vision.
Environments
Periclimenes shrimp are found in tropical and subtropical waters worldwide. They are commonly observed in coral reefs, rocky shores, and seagrass meadows. They prefer environments with a high abundance of their host organisms.
Commensal Relationships
Periclimenes shrimp are known for their commensal relationships with various marine organisms, particularly sea anemones. This relationship is beneficial for the shrimp, which gain protection from predators and access to food within the anemones' tentacles. The host anemones are not negatively affected by the shrimp's presence.
Some common host species include:
- Stichodactyla tapetum (Carpet Anemone)
- Entacmaea quadricolor (Bubble-Tip Anemone)
- Macrorhynchia (Long-Snouted Anemone)
References
For more information on Periclimenes shrimp, consult the following resources: