Chiton olivaceus, the green chiton, is a species of chiton, a marine polyplacophoran mollusk in the family Chitonidae, the typical chitons.URMO: UNESCO-IOC Register of Marine Organisms. Land J. van der (ed) WoRMS

Description Chiton olivaceus can reach a length of and a width of about . These large chitons have carinate plates with strong ribs. The shell is oblong and oval. In the front and rear plates ribs have a radial pattern. The intermediate valves show a sharp beak and rounded sutural plates. Colors are very variable, ranging from olive-gray (hence the common name) to yellow-brown, sometimes black, orange, red or yellow. The girdle surrounding all of the valves is quite large and covered by bristles and scales.Wildlife Archipelago

The teeth of these grazers of algae are composed of magnetite, the hardest material usable by a living being.

Distribution This species is common in the Mediterranean sea around Italy and Greece, but can also to be found in the nearby Atlantic Ocean.SeaLifeBase

Habitat Chiton olivaceus occur on a solid substrate, particularly stones and rocks, in the zones of sweeping of the waves, at a low depth.

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