Nidorellia armata, also known as the chocolate chip star (leading to easy confusion with Protoreaster nodosus), is a species of starfish from warmer parts of the East Pacific, where it ranges from the Gulf of California to northwest Peru, including the Galápagos.[1] It is the only species in the genus Nidorellia. N. armata can be found in tropical waters clinging on corals and rocky reefs; and are sometimes kept as pets in home marine aquariums.