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South Carolina Symbols
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South Carolina State Shell
Lettered Olive
(Oliva sayana)
Adopted in 1984.
The Lettered Olive, Oliva sayana, was designated the official shell of the State by Act No. 360, 1984.
Dr. Edmund Ravenel of Charleston, South Carolina, an early pioneer in concholgy, found and named the Lettered Olive shell which is quite prolific along the South Carolina Coast.
Shells of the family Olividae tend to be cylindrical, smooth and shiny, and variously patterned with numerous fine wrinkles. The lettered olive is an attractive cream or tan colored shell with 5 or 6 whorls and distinct suturing. The spire is fairly low; the aperture is long, smooth, and without teeth; and, the columella shows folds. Like many gastropods, these molluscs maintain a highly polished shell, by pulling their mantle flaps over the exposed surface. Many specimens have purple zigzag patterns and purple outer lips. Olives are approximately 66mm in length and 20mm wide.
All members of the Olividae family are carnivorous sand-burrowers. Although in a different superfamily than the Muricidae, the Olividae secrete a similar mucus from which a purple dye can be made (Monfils, 2001) They are distributed in warm and tropical seas.
Lettered Olive Taxonomic Hierarchy
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| Kingdom |
Animalia -- animals |
| Phylum |
Molluscs |
| Class |
Gastropoda |
| Subclass |
Prosobranchia |
| Order |
Caenogastropoda |
| Superfamily |
Volutacea |
| Family |
Olividae |
| Genus |
Oliva |
| Species |
Oliva Sayana |
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50 State Resource Guide
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