King Crab (Lithodidae)
King crabs from the family Lithodidae are deep-sea marine decapod crustaceans actually more closely related to hermit crabs than the "true" crabs. There are many morphologically diverse species across 15 genera, so it can be hard to distinguish them by eye without collecting a specimen.
They have five pairs of legs (pereopods) including a set of claws, often larger on the right side, three pairs of walking legs with sharp tips, and one set of smaller legs inside their branchial chamber that are used for cleaning. They generally have a short, six-segment abdomen folded against the underside the body.
King crabs have been seen in many locations at Axial, often climbing on and around rock formations near vent fields.
References:
Wikipedia
WoRMS Taxonomic Database
