👉 Spicocleidus is a genus of aquatic animals in the family Clupeidae, commonly known as the clams or lobsters. These marine crustaceans are characterized by their long, slender bodies covered with spines and a single, large shell. They primarily inhabit warm, shallow waters around the world, including oceans, rivers, and lakes, where they can be found in diverse habitats such as sandy beaches, rocky shores, and even freshwater springs.