Thaumastocaris

Thaumastocaris is a genus of decapod crustaceans belonging to the family Polychelidae. This genus comprises three species: T. zaleucorum, T. batrachoidea, and T. galapagensis. They are commonly known as “lobster-like squat lobsters” or “deep-sea squat lobsters”.

Characteristics

Thaumastocaris species are characterized by their robust, flattened bodies, which are adapted for life on the seafloor. They possess a pair of large, powerful claws and a series of smaller legs used for locomotion and foraging. Their carapace, or dorsal shell, is distinctly keeled, creating a prominent ridge along the midline. Their eyes are stalked and located on the sides of the head, allowing them to survey their surroundings.

Environment

These squat lobsters are exclusively found in the deep-sea environment, inhabiting a wide range of depths, from the continental slope to the abyssal plain. They are typically found on soft sediments, such as mud and sand, where they forage for food. Their habitat often features hydrothermal vents, cold seeps, and other unique deep-sea ecosystems.

Distribution

The geographic distribution of Thaumastocaris spans across the globe, with species found in various regions of the Atlantic, Pacific, and Indian Oceans. Their distribution reflects the widespread nature of deep-sea environments.

References