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beach
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Deepwater Tuatua Kahitua Tairaki
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"These 3 Tuatua have byssus (beard), most on the smallest, least on the biggest. Also on Large trough shells, Triangle shell, and Green-lipped mussel. Often see it on mussels, not so often on the others. ""All bivalves have the ability to secrete sticky threads known as byssal threads. However, most bivalves tend to use them only during infancy when they are small and require stabilization"" http://palaeo.gly.bris.ac.uk/palaeofiles/fossilgroups/bivalvia/modes.html"
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Small tuatua 23-35mm, not very common, right: big tuatua 88mm. left top and bottom: Common Cockles 23-38mm left mid: small Dosinia anus
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Found washed up on the beach.
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Common on sandy beach
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Tuutua, approx. 6cm in length.
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Tuutua, approx. 6cm in length.
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1) various ages 17 to 100mm 2) young 24 and 23mm 3) adult 96 and 100mm 4) mantle secretes shell and stuck to it
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1) various ages 17 to 100mm 2) young 24 and 23mm 3) adult 96 and 100mm 4) mantle secretes shell and stuck to it
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1) various ages 17 to 100mm 2) young 24 and 23mm 3) adult 96 and 100mm 4) mantle secretes shell and stuck to it
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1) various ages 17 to 100mm 2) young 24 and 23mm 3) adult 96 and 100mm 4) mantle secretes shell and stuck to it
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Half shell 100mm Baby tuatua 12 x 9, and 10 x 7 (and whelk egg cases). Open 10 x 7
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Half shell 100mm Baby tuatua 12 x 9, and 10 x 7 (and whelk egg cases). Open 10 x 7
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Half shell 100mm Baby tuatua 12 x 9, and 10 x 7 (and whelk egg cases). Open 10 x 7
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round thing is plastic. Also nearby live limpets Cellana strigilis, and 1 empty Bluff oyster shell
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