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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Yamada, Kazuhiko
Biography of K. Yamada
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Books and Publications by K. Yamada
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1990. Kigoshi, H.; Imamura, Y.; Yoshikawa, K.; Yamada, K. Three New Cytotoxic Alkaloids Aplaminone Neoaplaminone and Neoaplaminone Sulfate from the Marine Mollusc Aplysia kurodai. TETRAHEDRON LETT 31 34:4911-4914 Source - Edit
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1990. Kigoshi, H.; Imamura, Y.; Yoshikawa, K.; Yamada, K. Three New Cytotoxic Alkaloids Aplaminone Neoaplaminone and Neoaplaminone Sulfate from the Marine Mollusc Aplysia kurodai. TETRAHEDRON LETT 31 34:4911-4914 Source - Edit
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1992. Kigoshi, H.; Adachi, Y.; Yoshikawa, K.; Yamada, K. Absolute stereochemistry of aplaminone and neoaplaminone, cytotoxic bromodopamines from a marine mollusc: Enantioselective synthesis of debromoneoaplaminone. TETRAHEDRON LETT 33 29:4195-4198 Source - Edit
Named after K. Yamada
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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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