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Variation in Ossicle Morphology of Stichopus Species: A Comprehensive Study

This study by John Starmer and Gustav Paulay from the Florida Museum of Natural History investigates the ossicle variation in Stichopus species, focusing on S. horrens and S. chloronotus. The research employed techniques such as whole mount analysis and measurements of ossicle size, underscoring the morphological differences including tentacle structure and skin features. The findings aim to broaden the understanding of ossicle function and variation across species and ontogeny, paving the way for future multivariate analyses and character exploration in the Stichopodidae family.

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Variation in Ossicle Morphology of Stichopus Species: A Comprehensive Study

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  1. Quantifying Ossicle Variation in Stichopus. John Starmer and Gustav Paulay Florida Museum of Natural History

  2. Stichopodidae

  3. Stichopodidae

  4. Pieces and Parts Sivickis&Domantay

  5. Variation Massin 2002

  6. Stichopus?

  7. Bohadschia!

  8. Tentacle Stalk

  9. Tentacle Pad

  10. Base of Tentacle

  11. Cloaca

  12. Miliary Granules & Spherules

  13. Skin Whole Mount

  14. Papillae

  15. Ossicle Size Variation 1 unit = 5 um

  16. Ossicle Size Variation 1 unit = 5 um

  17. Ossicles: S. horrens vs S. chloronotus

  18. Ossicles: S. horrens vs S. chloronotus

  19. Multispecies Presence/Absence

  20. Next steps • Explore function (constraints?) on ossicles • Expand presence/absence study (species & ontogeny) • Apply multivariate analysis for measurement-based approach • Look for more characters

  21. Regular Light

  22. Polarized Light

  23. Acknowledgements http://67.98.162.85/marinelab/peetcukes/

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