Maja brachydactyla, commonly known as the short-fingered spider crab, is a species of crab belonging to the family Majidae. It is a distinctive and intriguing marine creature found in various regions across the globe.
Description & Characteristics
Maja brachydactyla is characterized by its elongated legs, particularly its first pair of legs, which are significantly longer than the rest, giving it a spider-like appearance. The crab’s carapace, the hard outer shell, is typically covered with short, spiky projections, further enhancing its distinctive look. These projections serve as camouflage and protection against predators. The color of Maja brachydactyla can vary, often blending with its surroundings, ranging from reddish-brown to greyish-white.
Like many other spider crabs, Maja brachydactyla can grow quite large, with an average carapace width of around 10 cm. Some individuals can reach even larger sizes, with their impressive leg span extending beyond 30 cm.
Habitat and Occurrence
Maja brachydactyla is primarily found in temperate waters of the Mediterranean Sea. It is a bottom-dwelling species, often residing on rocky substrates and seagrass beds. It prefers depths ranging from shallow coastal waters to depths of around 100 meters. The species is common in the Mediterranean Sea, where it is considered a typical component of the local ecosystem.
Taxonomy
Maja brachydactyla belongs to the class Malacostraca, which encompasses a vast array of crustaceans, including shrimps, lobsters, and crabs. It is further classified within the order Decapoda, which includes all ten-legged crustaceans, and the family Majidae, commonly known as spider crabs. This family is characterized by their distinctive long legs and their often spiky shells.
Feeding
Maja brachydactyla is an opportunistic omnivore, feeding on a variety of organisms found on the seabed. Its diet includes algae, mollusks, worms, and small fish. The crab uses its powerful claws to capture and crush its prey. It often scavenges for food, consuming dead organisms and debris.
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