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Marine Life part 2

Marine Life part 2

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Marine Life part 2

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  1. Marine Lifepart 2

  2. We will cover • Worms • Molluscs • Crustaceans • Echinoderms

  3. WormsFree living Segmented body head with well developed eyes, tentacles and jaws parapodia with bristles

  4. WormsFree living A Typical Flatworm tentacles and eyes wavy edges help movement by rippling

  5. WormsSedentary hard skeleton-like calcareous tube exit hole tube gills

  6. Worms – Sedentary Tube worms in calcareous tubes

  7. Worms - Sedentary tube of stones and mud stuck together

  8. Worms - Sedentary “Sand Mason” tube of sand and shell

  9. MolluscsSea-snails and Limpets siphon shell coiled tentacles head foot muscular

  10. Spire of shell MolluscsSea-snails and Limpets shell – not always coiled foot underneath (cannot always be seen as shell may cling to rock) operculum covers opening when foot pulled in

  11. Molluscs – Sea snails Painted top shell

  12. MolluscsBi-valves shell exhalent siphon muscular foot inhalent siphon

  13. Molluscs – Bi-valves Great scallop

  14. Molluscs - Sea Slug shell often hidden inside body tentacles gills for breathing often colourful

  15. Molluscs – Sea slug Sea slug

  16. Molluscs – Sea slug Sea slug

  17. Molluscs – Sea slug Sea hare

  18. Molluscs - Chiton Mantle covers body underneath segmented shell overlapping plates mouth and muscular foot underneath

  19. Molluscs – Chiton Coat of mail shell

  20. carapace covering thorax & head abdomen mouth parts 5 pairs of jointed walking legs Crustaceans tail fan swimming legs

  21. Crustaceans Shrimp

  22. Crustaceans Squat lobster

  23. Crustaceans Green crab

  24. Crustaceans Velvet swimming crab

  25. Crustaceans Marbled swimming crab

  26. Crustaceans Edible crab

  27. Crustaceans Crayfish

  28. tube foot with sucker spines (not always obvious) central mouth underneath Echinoderms - Starfish

  29. central disc tube feet on arms spines Echinoderms - Brittlestar arm

  30. Echinoderms – Starfish Common starfish

  31. Echinoderms – Starfish 7 armed starfish

  32. Echinoderms – Starfish Spiny starfish

  33. Echinoderms – Starfish Brittlestars on Breadcrumb Sponge

  34. Spines Shell called “test” EchinodermsSea Urchin Tube feet with suckers Mouth underneath

  35. Echinoderms – Sea Urchin Common urchin

  36. Summary • Worms • Molluscs • Crustaceans • Echinoderms

  37. Questions?