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The Atlantic thorny oyster can grow up to 10 centimetres (3.9 in) in diameter. The valves of the shell are roughly circular and the upper one is decorated with many spiny protuberances up to 5 centimetres (2.0 in) long. When growing in a crevice, the shape of the shell adapts itself to the available space. [4]
Double stranded Zuni fetish necklace with eagle fetish in center, 40 total fetishes made from turquoise, jet, pipestone, serpentine, mother of pearl, spiny oyster shell. The fetishes are strung on fine sinew strung with olive shell and turquoise heshi (beads), with a hand-made sterling silver clasp and cones. The carver of this object is unknown.
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Bolinus brandaris (originally called Murex brandaris by Linnaeus and also Haustellum brandaris), and commonly known as the purple dye murex or the spiny dye-murex, is a species of medium-sized predatory sea snail, an edible marine gastropod mollusk in the family Muricidae, the murex snails or the rock snails. [1]
The rigid shell has a pair of thick spiny valves held together by ligaments that run along the entire dorsal side of the bivalve. The bivalve is triangular with 15 to 25 low ribs radiating from the pointed anterior end (or umbo) to the large posterior edge. The exterior of the shell is usually a dull brownish color with many small tube-like ...
The shell of the spiny scallop is slightly shaped like a fan and is able to grow to a height of about 9 centimetres (3.5 in) though a more normal adult size is 6 centimetres (2.4 in). The shell is composed of two valves, each of which is convex and has a small number of broad ribs covered with blunt spines.
Spondylus varius is the largest of the spiny oysters, reaching a maximum size of about 20 cm. Aside from the size, the shell is easily recognisable because its adult part is white, but a colourful (usually crimson, but it can be yellow) prodissoconch is clearly visible at the apical end.
Arcinella cornuta, or the Florida spiny jewelbox clam or Florida spiny jewel box, is a marine species of bivalve mollusc in the family Chamidae. It can be found along the coast of North Carolina to Florida , Gulf of Mexico , Caribbean Central America , and Venezuela .