gobioids

Gobioids are a group of ray-finned fish belonging to the order Perciformes. This diverse clade encompasses several families, with the most prominent being the Gobiidae family, commonly known as gobies. Gobies are a vast and varied group, comprising over 2,000 described species. They are characterized by their fused pelvic fins, which form a suction disc, though this feature is reduced or absent in some lineages. Many species inhabit marine environments, particularly coral reefs and rocky shores, where they often live in association with other organisms like shrimp or corals. Freshwater and brackish water species are also common.

Gobioids exhibit a wide range of sizes and appearances, from tiny reef-dwelling species to larger bottom-dwellers. Their diet typically consists of small invertebrates and algae, and they play important roles in their respective ecosystems as both predator and prey. Many gobioid species are benthic, meaning they live on the seafloor, and some are known for their burrowing behavior. The group's evolutionary history is complex, with ongoing research seeking to clarify the relationships between different families and genera. Their widespread distribution and abundance make them a significant component of global fish biodiversity.