Examples include snails
During the running part of the triathlon, the worm thinks she is going to win but at the last moment a gangster’s moll (mollusc) passes her. The moll looks behind her, grins and wins. Just so that you know, a snail was last to finish!
Examples of molluscs
The garden snail – also known as the European brown garden snail – is a very slow mover and looks harmless enough, but is a major pest in gardens.
Despite having “fish” in its name, it’s not a fish, but a mollusc.