Protected rocky shorelines usually show a narrow almost homogenous eulittoral strip, often marked by the presence of barnacles.
2.
This rock snail's typical habitat is the mid and lower eulittoral zone of New Zealand's semi-exposed rocky intertidal shores.
3.
""'Catomerus " "'prefers warm temperate seas, and breeds mainly during the austral winter, at temperatures ranging from 14�C to 17�C, and sublittoral to lower eulittoral water depths.