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mollusca
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Characteristics of Mollusca (bivalves, gastropods, snails,
chitons, squid, and octopus)
Mouth/Anus
Mollusca have a mouth and an anus.
Bilateral Symmetry in Bivalves - University of Kansas
Symmetry
Mollusca have bilateral symmetry.
Snail Shells - molluscs.at
Skeleton
Most Mollusca have shell made of CaCO
3.
daviddarling.info
Other external recognition features
A fold in the body wall called the mantle secretes the shell. A hard rasping radula is used for feeding.
Home
Plant Phyla
Bryophyta
Filicinophyta
Coniferophyta
Angiospermophyta
Animal Phyla
Invertebrates
>
Porifera
Cnidaria
Platyhelminthes
Mollusca
Annelida
Arthropoda
Vertebrates - Chordates
>
Ray-finned Fish
Reptiles
Mammals
Amphibians
Birds