Diastylids

Diastylids are a family of crustaceans belonging to the order Decapoda, which includes crabs, lobsters, and shrimp. They are characterized by their elongated first pair of walking legs, or pereopods, which are used for swimming and feeding. This unique adaptation sets them apart from other decapods. Diastylids are found in marine environments, primarily in the deep sea, and are known for their bioluminescent capabilities, which they use for communication and attracting prey. The family includes several genera, with the most well-known being Diastylis and Diastylopsis. These crustaceans play an important role in marine ecosystems, serving as both predators and prey for various species. Their study contributes to our understanding of deep-sea biodiversity and the unique adaptations of marine life.