What is the star system?
The star system calculates the number of pieces that were handled by Conchology, Inc. in the last 21 years:
| 0 – 5 pieces | 6 stars |
|
| 6 – 10 pieces | 5 stars |
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| 11 - 25 pieces | 4 stars | |
| 26 - 75 pieces | 3 stars | |
| 76 - 150 pieces | 2 stars | |
| > 150 pieces | 1 star | |
We want to point out that the star system is only very reliable for PHILIPPINE shells only, as we handle very few foreign shells in general. As time goes, the system will become more and more performant.
Shellers From the Past and the Present
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O'Brien, Christine
Biography of C. O'Brien
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National Biological Service Listed by Illinois Natural History Survey as having an interest in freshwater mollusks - Edit
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PRESENTATIONS 1995. Freshwater Mollusks Conservation Society meeting Jayne Brim-Box, James D. Williams, Robert Dorazio, and Christine O'Brien. An Investigation of Freshwater Mussels, Fish, and Fine Sediments in the ACF Basin, With a Special Emphasis on Imperiled Mussel Species - Edit
Books and Publications by C. O'Brien
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2017. Emilie Blevins, Sarina Jepsen, Jayne Brim Box, Donna Nez, Jeanette Howard, Alexa Maine & Christine O'brien. Extinction Risk of Western North American Freshwater Mussels: Anodonta Nuttalliana, the Anodonta regonensis/Kennerlyi Clade, Gonidea Angulata, and Margaritifera Falcata. Freshwater Mollusk Biology and Conservation 20: 71-88 Source - Edit
Named after C. O'Brien
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Note from Tom Rice: genera used on this page are from the original discription where possible, no genera will be updated to the latest WORMS info,
as this would be an impossible task at hand. Thank you for your understanding.
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