gastropods

Cephalopods have much, much more complex brains than the other mollusks (such as gastropods or bivalves), so the latter is more likely.

Basically his work was in identifying and counting gastropods on islands in the South China Sea.

Lost parents, siblings, spouse, children as toxic gastropods slowly found them.

More men might be familiar with bipods (e.g., affixed to a rifle), or monopods and tripods (from the male-dominated photography hobby), or even gastropods or pedals...

One million indestructible toxic gastropods spawned across the globe.

No mentions of alternate snail species in the article with left-y shells, but apparently left vs right shells are distinguishing features of gastropods (land and sea snails).

Before gastropods evolved, stromatolites were significant reef builders.

Another poster mentions gastropods (octopus).

Tripods, bipods, gastropods, cephalopods!

I dunno...gastropods do seem pretty dumb.

Though you probably have to restrict molluskivorism (that's my word of the day) to gastropods and other less complex organisms to avoid the ethical and cost problems that would come with cuttlefish, squid, and octopus farming.

They are more "sophisticated" than molluscs, and yet we are learning fascinating and frightening things about the intelligence of gastropods.

We still say "antipodes", and "gastropods" might count.