Here are some Mollusca videos (Gastropods, Bivalves, Cephalopods and the rest).
A good shot of the radula of a gummboot chiton at Victoria High School. http://www.youtube.com/watch?v=ugbhlrvUzE4
A photoshow of some beautiful chitons of the Polyplacophora. http://www.youtube.com/watch?v=okq5Tt6d5Zg&NR=1
Truly gentle giants — Giant clams of the Bivalvia. http://www.youtube.com/watch?v=ZBfviWg7kKM
Some snails are very dangerous, especially the cone shells. http://www.youtube.com/watch?v=BMOSvz5mThM&NR=1&feature=fvwp
Here is a general introduction to the Order Nudibranchia of the Class Gastropoda. http://www.youtube.com/watch?v=nHVoV0MVwSc&NR=1&feature=fvwp
Click on this link to see a collection of pictures of some of the most beautiful nudibranchs (gastropods) in the oceans, with a commentary by the photographer. http://www.youtube.com/watch?v=ap3D-z0GV9Q
Why is Hexabranchus sanguineus known as the Spanish Dancer? Click the link and find out for yourself. Not bad moves for a stomach foot! http://www.youtube.com/watch?v=SBlB1-EabgI&NR=1
The Attack of the Killer Sea Slugs, Armina californica. And it happens off our coast! http://www.youtube.com/watch?v=ef4nn45MDrs&NR=1
Pearls are not the only mollusc with valuable shells. Check out the Scaphopods. http://www.youtube.com/watch?v=Cfc0eEGHeZY
Here’s a pet octopus at Scripps. http://www.youtube.com/watch?v=P8V32WfAz0M
Here’s an octopus (Amphioctopus marginatus) doing an imitation of a hermit crab. But what is really cool is this is the first evidence of tool use by an invertebrate! http://www.youtube.com/watch?v=F9lVoP8YqBE&feature=related
Even Ted Talks do cephalopods. Check out David Gallo’s Tedt talk. http://www.ted.com/talks/lang/eng/david_gallo_shows_underwater_astonishments.html
Everything you wanted to know about the vampire squid from hell (Vampyroteuthis infernalis) but were afraid to ask. http://www.youtube.com/watch?v=q5ZQH2Uzpew and courtesy of David Attenborough http://www.youtube.com/watch?v=S3CJIKKSUpg
The insane biology of the octopus! https://www.youtube.com/watch?v=mFP_AjJeP-M
These are one of the first animals that got me interested in Marine Biology — Sea Angels (I call them Pteropods now). http://www.youtube.com/watch?v=JVMyg9dXkWo&feature=channel