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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.
As a decorator crab, this crab attaches seaweed or algae from its environment to the hooked hairs on its body, which gives this crab camouflage along the ocean floor. [6] Hairy seaweed crabs change their camouflage with 10-20% of the cover being replaced each day, this causes their movement to be very sluggish like many other spider crabs.
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]
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]
Hemigrapsus oregonensis, on Orcas Island, Washington. This crab is an intertidal crab with wide-set eyes and no rostrum.Despite its name, body color can vary. Often, the crab's rectangular-shaped carapace is deep red or brown with light green spots, but it can also be grey-green, yellow-green, pale green or white with small blue/black spots, as well as have lighter colored legs with similar ...
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
By waving their claws around, the crab stirs up water around the symbiotic bacteria living in the setae on their claws. [20] This ensures the bacteria are receiving enough chemicals that will provide energy to grow. [4] [20] By growing their own food, the yeti crab has a readily available resource of food in the harsh environment of the deep sea.
Petrolisthes eriomerus is a species of marine porcelain crab found in the eastern Pacific Ocean. It is commonly known as the flattop crab. It is a flattened, rounded animal, with a carapace up to 20 mm (0.8 in) across. It is a filter feeder, and also sweeps food from rocks.