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 |
|
| 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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Earnhardt, Charles E.
Biography of C. Earnhardt
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Books and Publications by C. Earnhardt
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2004. Robert T. Dillon Jr,, Charles Earnhardt & T.P. Smith. Reproductive isolation between Physa acuta and Physa gyrina in joint culture. American Malacological Bulletin 19(1):63-68 Source - Edit
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2005. Robert T. Dillon Jr, Thomas E. McCullough & Charles Earnhardt. Estimates of natural allosperm storage capacity and self-fertilization rate in the hermaphroditic freshwater Pulmonate snail Physa acuta. Invertebrate Reproduction and Development 47(2):111-115 · Source - Edit
Named after C. Earnhardt
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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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