poisonous cephalopods		have no shell, are gastropods, aggressive eaters, look like thick sea slugs
Giant squid		ribbon of small teeth that is used to feed
apex		can actively pump water in & out for respiration & feeding
foot		tip or top or smallest diameter of a snails spiral shell
respiratory pore		fin along full side, not a fish, eight arms & two tentacles
adductor muscle		Flambouyant cuttlefish, Blue-ringed octopus, Striped pj octopus
cuttlebone		below tentacles & above shell of snails, breathing orifice
mantle		projections in shell near hinge ligament, fit into recessed sockets
hinge teeth		fleshy lining inside of shell/valve, responsible for secretion & maintenance
incurrent & excurrent siphons		clap their valves/shell to swim, some have eyes on tips of valves
funnel		compress & stretch to open and close valves of a clam
radula		most cephalopods escape predation by releasing dark fluid from this organ
Nudibranchs		anchors the animal to surfaces & for movement, protein for humans
cuttlefishes		ground into bird & fish food, calcified internal bone in cuttlefish
gastropods		settles on pilings, boat bottoms, great whales, example barnacles
scallops		octopus use like a water jet for propulsion
fouling organism		most varied & common & largest group of molluscs
cephalopods		predators specialized for locomotion, name means "head-footed"
ink sac		most live & breed near New Zealand, not found live
squid		some chitons in this class of mollusks can reach 2 feet long
bivalvia		excellent swimmers, move forward & back with siphon, elongated
polyplacophora		cockles, scallops, oysters & mussels are in this class