[1] Callianax biplicata snails are found in the Eastern Pacific Ocean coasts from British Columbia, Canada to Baja California, Mexico.

[2] This species is common on sandy substrates intertidally and subtidally, in bays and the outer coast.

The shell is often some shade of greyish purple, but it can also be whitish, tan, or dark brown.

Native people of central and southern California used the shell of this species to make decorative beads for at least the last 9,000 years.

[4] Within the past 1,000 years these beads began to be manufactured in large quantities on southern California's Santa Barbara Channel Islands, indicating that they were used for shell money in Native American trade.