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Oregonia gracilis, commonly known as the graceful decorator crab, is a species of crab belonging to the family Oregoniidae. [3] Like other decorator crabs it habitually attaches other organisms to its back. [4] The sessile organisms are attached to hooked setae that act as a sort of velcro attachment.
Bateson, in a much quoted passage, [6] describes crabs of the genera Stenorhynchus and Inachus: the crab tears a piece of seaweed in its claws, chews it, and then rubs it firmly on its body until it catches on the "Velcro-like hooked setae", [1] curved hairs which permit camouflage materials to be attached. [2]
Because yeti crabs live in extreme environments like cold seeps and hydrothermal vents, the species has adapted certain behaviors and qualities to aid their survival. These adaptations include the crab's growth of their setae, [5] propodus [6] and claws. [7] The internal anatomy, diet, behaviors and adaptations of the yeti crab are outlined below.
Kiwa hirsuta is a crustacean discovered in 2005 in the South Pacific Ocean. [1] This decapod, which is approximately 15 cm (5.9 in) long, is notable for the quantity of silky blond setae (resembling fur) covering its pereiopods (thoracic legs, including claws).
Crustaceans have mechano- and chemosensory setae. [3] Setae are especially present on the mouthparts of crustaceans [3] and can also be found on grooming limbs. [4] In some cases, setae are modified into scale like structures. [4] Setae on the legs of krill and other small crustaceans help them to gather phytoplankton. It captures them and ...
Gothus teemo is named after Teemo, a champion (playable character) in the multiplayer online battle arena video game League of Legends.The crab's small size, brown stripes and dense covering of setae were compared to the short stature and fluffy brown and white fur coat of the raccoon-inspired character. [1]
The mandibles are followed by paired first and second maxillae. Both the mandibles and the maxillae have been variously modified in different crustacean groups for filter feeding with the use of setae. Figure 3: The mouthparts of an edible crab: the third maxillipeds conceal the remaining mouthparts
Seaweed crabs have adapted to a macrophagous diet, in other words eating large foods. They have teeth to break down the material they consume and setae, hair-like structures, to aid in the process. Cuspidate setae help to hold the food as it is torn apart to be ground into smaller pieces.