Several species of crabs have adopted the tubes of C. variopedatus as their home with Pinnixa chaetopterana , Polyonyx gibbesi and certain Pisidia species living almost exclusively within the tubes .
Species do not share a tube with each other .
Several species of crabs have adopted the tubes of C. variopedatus as their home with Pinnixa chaetopterana , Polyonyx gibbesi and certain Pisidia species living almost exclusively within the tubes although they do not share a tube with each other .