Biology/Natural History: This anemone broods its young internally. A common symbiont is the candy-striped shrimp Lebbeus grandimanus (photo). Heptacarpus kincaidi is another common shrimp symbiont (photo). The heart crab Phyllolithodes papillosus often shelters under the anemone when molting (photo). We have also observed the scaled crab Placetron wosnessenskii sheltering under the anemones (photo).