Dear all, I need some more help on very rare shells. Below is my list of trochidae I have gathered so far: Calliostoma atlantis Clench & Aguayo, 1940 Calliostoma olssoni Bayer, 1971 Calliostoma aurora Dall, 1888 Now, I want to make five entries for each major family, and as you can see here I only have three. Can someone give me some suggestions on the other missing two? I would prefer that they not be in the Calliostoma genus. Thanks, James