Perfect for beginners with simple, common vocabulary
Marine Bivalve Enigmas and Cryptic Shell Lore
Challenging puzzle for experienced crossword solvers
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Across
- 1. Pertaining to the upper surface of the clam's shell
- 2. Oldest, often protruding, part near clam’s hinge
- 3. Larval stage with foot developing before settlement
- 5. Calcium-rich layer forming a protective shell armor
- 9. Immobile lifestyle typical of some bivalve species
- 14. Tongue-like scraping organ, typically absent in bivalves
Down
- 4. Symbiotic algae sometimes found inside marine mollusks
- 6. Muscle contracting to close the bivalve’s shell
- 7. Elastic connection allowing hinged shell articulation
- 8. Mother-of-pearl iridescence inside the shell
- 10. Outer organic layer influencing shell coloration
- 11. Structural seam where bivalve valves pivot
- 12. Taxonomic rank including all shelled mollusks
- 13. Zone of tidal waters, habitat for clams like Shellder
- 15. Tissue secreting the calcareous shell material
- 16. Threadlike filaments enabling mollusks to anchor
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