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Home > Invertebrates
> Bivalves > Pinna muricata
Updated 10/7/2012
Family Pinnidae
INDO-WEST PACIFIC / HAWAII
Pinna muricata
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Mokapu, Oahu, 260 feet
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Sea Tiger Wreck, Oahu, 120 feet
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Kewalo, Oahu, 50 feet |
Ft. Kamehameha, Oahu, 3 feet |
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PRICKLY PEN SHELL
| Uncommon in sand except in deep water where they form extensive beds.
A nearly continuous bed along Oahu's south & west shore was
decimated by severe storms and never recovered. These
beds hosted a diverse community of invertebrates, especially
gastropods. Shell narrowly triangular with rows of broad curved spines.
Pale to dark brown. Attains 10 inches.
Hawaii & the Indo-West Pacific. Pinna bicolor is a
synonym. |
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