The Flathead Lobster, Bay Lobster, scientifically known as Thenus orientalis, is a fascinating and commercially important crustacean found in various parts of the Indo-Pacific region. It is a distinctive species with unique physical characteristics, a specific habitat preference, and a vital role in the marine ecosystem.
Description & Characteristics
Thenus orientalis is a large lobster species that can reach a considerable size. Its body is flattened dorsoventrally, hence the common name “Flathead Lobster.” The carapace, or shell, is smooth and lacks the prominent spines found on many other lobster species. The antennae are long and slender, while the eyes are relatively small. The body color varies depending on the environment, ranging from reddish-brown to greenish-brown. The Flathead Lobster has powerful claws that it uses to capture prey.
Habitat and Occurrence
Thenus orientalis typically inhabits the Subtidal, sublittoral, infralittoral, deep zone of the oceans from the lower limit of the intertidal zone (intertidal) to the shelf edge at about 200 m water depth. neritic., making it a prevalent presence in these aquatic ecosystems. This species is often found in rocky reefs, coral reefs, and seagrass beds, where it can find shelter and access its preferred food sources.
Taxonomy
Thenus orientalis belongs to the Class: Malacostraca, Order: Decapoda, and Family: Scyllaridae. This classification places it within the broad group of crustaceans, specifically the decapods, which include crabs, lobsters, and shrimps. The family Scyllaridae encompasses the slipper lobsters, which are known for their flattened bodies and the lack of prominent claws.
Feeding
Thenus orientalis is a carnivore that primarily feeds on clams, snails, and other marine invertebrates. It uses its powerful claws to break open the shells of its prey, extracting the fleshy contents within. This feeding behavior plays an important role in maintaining the balance of the marine ecosystem.
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