The green false-jingle (Pododesmus macrochisma) is abundant in the low current shore diving areas around Victoria. It has been a challenge to get a good close-up of the mantle though before the shells quickly snap shut. The shape is circular and there can be radial ridges as in the photo. The lower shell is translucent with a hole in the middle, through which this animal attaches to another larger shell or rock below. The green false-jingle can grow to 5 inches (13 cm) across, and has a range that includes the Arctic Ocean, Siberia to northern Japan, as well as northern Alaska to northern Mexico.