Bivalvia - Cardiida - Chamidae

Alternative combination: Echinochama californica

Belongs to Arcinella according to C. L. Powell 2008

Sister taxa: Arcinella antiquata, Arcinella arcinella, Arcinella cornuta, Arcinella draconis, Arcinella trachyderma, Arcinella yaquensis, Echinochama pristina, Echinochama praearcinella

Ecology: stationary epifaunal suspension feeder