Archive 1264: Daily Pix FULL SIZE
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Freshwater Pic
of the Day Link
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Atrina pectinata (Linnaeus 1767), the Pen
Shell. India to Australia; Indonesia, Philippines, Japan. There are
other species called Pen Shells, and some of these make their way
into the ornamental trade. Typical appearance in an aquarium,
mounted vertically, but the Seastar is not a friend. |
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Pteria aegyptica (Chemnitz 1782), Egyptian
Wing-Oyster. Indo-Pacific; including Red Sea. Found attached
to gorgonians (as here), stony corals, soft corals, hydrozoans.
Needs strong current, moderate light and very small (less than 15
millimicron diameter) for food. To 8 cm. in length. Red Sea
pic. |
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Pteria colymbus, Atlantic Wing-Oyster. Tropical West Atlantic.
2-3 inches. Found attached to Gorgonians, mostly Sea Plumes. Often
overgrown in turn by other organisms. DiF pic in Roatan. |
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Spondylus americanus Herman 1781, the
Atlantic Thorny Oyster. Caribbean. Deep red, rounded shell to six inches across. Here off
the Bahamas in the Caribbean. |
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