Phylum Mollusca Flashcards
0
Q
Gastropoda
A
Largest class Snails Anus over head "Trap door" (operculum) Abalone, conch, limpets (no operculum) Cone shells Nudibranchs: nude snails, eat seaweed
1
Q
Polyplacophora
A
Uncoiled snails
Chitons
Use radula (tongue) to obtain food
2
Q
Scaphopoda
A
Tusk shells
Never seen alive
Live deep
3
Q
Bivalvia
A
Bivalve (two shells) Benthic filter feeding Oysters: irregular shell, pearls Mussels: anchor to rocks with byssal threads Close their shells to keep water in Strong adductor muscles Shipworm: fouling
4
Q
Cephalopoda
A
“Head foot”, tentacles, predators, eyes like humans, largest brain
Octopus, squid, cuttlefish, chambered nautilus
