Argentine Post has issued the stamps depicted the mollusk shell species, Calliostoma militaris ( 25c), Epitonium fabrizioi (50c), Odontocymbiola magellanica (75c), Trophon geversianus ( $1.0) on August of 2008.
Calliostoma militaris is species of the genus Calliostoma. Calliostoma is a large genus of medium-sized sea snails with gills and an operculum, marine gastropod molluscs within the family Calliostomatidae.The distribution of this genus is worldwide, found mainly on hard substrata. Calliostoma militaris occur from shallow waters to bathyal depths.Calliostoma militaris are mainly herbivorous or feed on detritus, feeding on a wide range of algae .
Epitonium fabrizioi is species of the genus Epitonium. Epitonium shells are high-spired, and are all-white in most of the species within this genus.The shells typically have blade-like vertical ribs, known as costae.Epitonium is a genus of small predatory sea snails, marine gastropod mollusks
Odontocymbiola magellanica is a species of sea snail, a marine gastropod mollusk in the family Volutidae, the volutes.
Trophon geversianus is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
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