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Donax variabilis Say, 1822 with hydroids |
| During the summer and fall months a significant portion of the specimens found on northeast Florida beaches have a hydroid "plume" attached to the posterior aspect of the shell (the short end; the upper end when burrowing; the end with the siphons). Over the years this phenomenon has been a continuing source of amazement to those observing it for the first time and has generated many questions. |
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Matanzas Inlet beach, St. Johns County, Florida, 3/24/2010 | Digital image by Joel Wooster. |
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