Phylum Mollusca

1
Phylum Mollusca

• Soft body
• Mantle Foot

2
Mantle secretes the shell of many molluscs
3
Phylum Mollusca

• Soft body
• Mantle Foot
• Complete digestive system
• Respiratory System
• Open circulatory system

4
Open Circulatory System

• The blood is not always contained in blood
  vessels. It comes into direct contact with
  organs.

5
Phylum Mollusca

• Soft body
• Mantle Foot
• Complete digestive system
• Respiratory System
• Open circulatory system

• Class Gastropoda
• One shell or no shell

6
Foot
7
(No Transcript)
8
Flamingo Tongue Snail
9
Finger Print Snail
10
Queen Conch
11
(No Transcript)
12
(No Transcript)
13
Horse Conch
14
Cowrie
15
Land Snails
16
Nudibranch
17
Red-lined Sea Goddess
18
Lettuce Sea Slug
19
Slugs
20
Class Bivalvia- two shells
21
(No Transcript)
22
Flame Clam
23
Clams
24
Giant Clams
25
Scallop
26
Tree Oyster
27
Oyster
28
Mussels
29
Class Cephalopoda

• head foot
• Body divided into head arms
• Well developed nervous system

30
(No Transcript)
31
Octopus
32
Reef Squid
33
Cuttlefish
34
(No Transcript)
35
Nautilus
36
Class Polyplacophora

• Eight Overlapping Plates
• Dorsoventrally Flattened

37
Chiton
38
Chiton(From the bottom)
mouth
gills
foot