11. Previously this genus was placed within the family Trochidae . " Calliostoma " is the type genus of the family Calliostomatidae. 12. In 1901, Melvill expressed the opinion that some malacologists might consider this species to belong in the genus " Calliostoma ". 13. The shell of this species is very similar to that of " Calliostoma bonita ", but there are a few recognizable differences. 14. The new species was originally described as " Calliostoma kiheiziebisu " by the Japanese malacologist Yanosuke Otuka ( 1903-1950 ) in 1939. 15. ""'Calliostoma admirandum " "'is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. 16. ""'Calliostoma africanum " "'is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. 17. ""'Calliostoma akoya " "'is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. 18. ""'Calliostoma alboregium " "'is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. 19. ""'Calliostoma alisi " "'is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. 20. ""'Calliostoma altena " "'is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.