29 October--Molluscan Movement
Gastropods
use foot, progressive peristalsic wave of contraction
that contracts and relaxes fibers that insert on the sole of the foot.
need to be attached, yet move
other modes
larval forms--veliger and trochophore
use of ciliary bands
air bubbles
flapping of wing-like foot
Cephalopods
active mode of locomotion
jet propulsion
passive mode of locomotion
bouyancy