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José H. Leal

Shell of the Week: The Disk Dosinia

Last week, we examined the Elegant Dosinia, Dosinia concentrica. Today I want to introduce its closest relative, Dosinia discus (Reeve, 1850). The two species have shells that are very similar in size (about 2.75–3 inches), in their circular shape, and white color, but the Disk Dosinia differs from its “sister species,” above all, by having twice as many commarginal (“concentric”) ridges, about 16–20 per centimeter (40–48 per inch).


The Disk Dosinia, Dosinia discus, from Sanibel. Photos by José H. Leal.

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https://blog.nus.edu.sg/matchudl/2019/12/17/hello-world/#comment-5736

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Michael Haydon
Michael Haydon
4 days ago

Great sharing. Last week’s focus was on the Elegant Dosinia (Dosinia concentrica), and now attention turns to its relative, Dosinia discus. Both species share similar shell size, shape, and color, but the Disk Dosinia stands out with denser concentric ridges—16–20 per centimeter, compared to its sister species. Need assignment help canada? Myassignmenthelp.com offers top-notch assignment help in Canada, catering to students across various academic levels and disciplines. Our experts ensure high-quality, plagiarism-free content tailored to meet your university’s standards. From essays and research papers to case studies and dissertations, we provide personalized support to enhance your academic performance. We guarantee timely delivery, affordable pricing, and round-the-clock customer assistance to address all your queries. Whether you’re struggling with complex topics or…


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