This individual (the same one as above, found in Rosario Bay) had an unusual white "pearl" growth inside the hinge (see the growth to the left in the photo). This is likely due to an unusual irritation inside the shell of this individual and is not normally found in this species. Photo by Dave Cowles, June 2012
This individual, found on the same float as the individual above, had no "pearl" near the hinge. Shell length 8.8 cm, was a gravid female. Photo by Dave Cowles, June 2012
