8. Phylum Mollusca Clams, Cockles, Mussels - Class Bivalvia Blue Mussel- Mytilus sp. Suspension feeders Very large gills that collect food particles Great to eat, but also great sentinels for the environment
9. Phylum Mollusca Clams, Cockles, Mussels - Class Bivalvia Giant Pacific Oyster Crassostrea sp. Sedentary Blue mussels attach by byssal threads the oysters cement to rocks Oysters are ambisexual. Start out as males for three years then become female.
10. Phylum Mollusca Clams, Cockles, Mussels - Class Bivalvia Mahogany Clam Nuttallia sp. Most common clam on our beach Introduced to our beaches 20 years ago, range is from Puget sound to Alaska?
11. Phylum Mollusca Clams, Cockles, Mussels - Class Bivalvia Soft shell Clam Mya sp. Shells suited to their name. Located near fresh water streams Develop leukemia if habitat is contaminated with PCBs
12. Phylum Mollusca Clams, Cockles, Mussels - Class Bivalvia GeoducksPanopea sp The world’s largest burrowing clam (up to seven pounds) Can live for 150 years or more! Most of the population is subtidal but may find them at a 0m tide
13. Phylum Mollusca Clams, Cockles, Mussels - Class Bivalvia The Heart Cockle Clinocardium sp. Shallow burrowers Most bivalves are sedentary but some can escape by running away
14. Phylum Mollusca Clams, Cockles, Mussels - Class Bivalvia The swimming scallop Chlamys sp. Some bivalves can swim too. Some have sensory cells for light along the mantle
15. Phylum MolluscaSquid and Octopus - Class Cephalopoda The record breakers The largest The fastest The smartest Octopus sp.
16. Phylum Mollusca Squid - Class Cephalopoda The market squid Loligo sp. 8 long arms and two tentacles Species schools in large numbers in shallows to lay eggs
17. Phylum Mollusca Squid - Class Cephalopoda The market squid Loligo sp. Have corneas over their eyes Live from 4 to 5 months as adults During the day live at depths of 500m and return to surface at night to hunt
18. Phylum Mollusca Squid - Class Cephalopoda The market squid Loligo sp. They have chromatophores Cells that can expand or contract and are mediated by muscles and are under neural control
19. Phylum Mollusca Octopus - Class Cephalopoda The giant pacific octopus Octopus sp. Have 8 arms but no tentacles A cartilaginous skull Have chromatophores
20. Phylum Mollusca Octopus - Class Cephalopoda The red octopus Octopus sp. Not only can they change colour they can mimic as well
21. Phylum Mollusca Octopus - Class Cephalopoda The giant pacific octopus Octopus sp. Reproduction Separate sexes Modified arm for sperm transfer Male dies after mating Female dies when her eggs hatch.
![Phylum Mollusca Almost all have the following in common: ,[object Object]](https://image.slidesharecdn.com/4-molluscsclamsandoctopus-110329164056-phpapp01/85/4-molluscs-clams-and-octopus-1-320.jpg)
