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AKA Edible Periwinkle
The Edible periwinkles is one of the largest periwinkle reaching a size of 2 inches.
Edible periwinkles are mostly black and grey, but exhibit a variety of colours and stripes. Adult Shells in tend to be smooth with the young ridged
Rough Periwinkles are adaptable tolerating a range of salinity and exposure and across most beach zones.
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