Phylum Mollusca

1
Phylum Mollusca
Identify Structure
Radula
2
Phylum? Common Name?
Mollusca
Chiton
8 Overlapping Plates
How do I feed? Where am I found?
I use my radula to scrape algae off the rocks
The Rocky Intertidal
3
Mollusca
Phylum? Common name? Where am I found? How
do I feed?
Limpet
The rocky intertidal
I use my radula to scrape algae off the rocks
4
Phylum? Common Name?
Mollusca
Brown sea hare
What do I eat? How do I defend myself?
Kelp and other algae
I secrete ink
5
Phylum? Common Name?
Nudibranch
Mollusca
Feeding strategy?
Predatory carnivore
6
Phylum? Common Name?
Marine Sail
Mollusca

7
Common Name?
Cone Snail
Proboscis
The barbed, harpoon-like radula emerges form its
proboscis
Siphon
8
Phylum? Class?
Bivalvia
Mollusca
1
2
4
3
Mantle
1. 2. 3. 4.
Gill
Mantle
Foot
9
Phylum? Class?
Mollusca
Bivalvia
Identify Structure
Siphon
10
Phylum? Class? Common Name?
Mollusca
Bivalvia
California Mussel
Identify structures
Byssal Threads
11
Phylum? Class?
Cephalopoda
Mollusca
What is my common name? What type of
circulatory system do I have? How do I feed?
Octopus
Closed
I am a fast, efficient predator (carnivore).
12
Phylum? Class? Common name? How do I move
through the water?
Mollusca
Cephalapoda
Squid
Jet Propulsion
13
Phylum? Class? Common Name?
Mollusca
Cephalopoda
Cuttlefish
14
Phylum? Class? Common Name?
Mollusca
Cephalopoda
Nautilus
A living fossil