The term SQUIDLIKE MOLLUSK is referring to the CUTTLEFISH, a 10 letter word. CUTTLEFISH are marine animals belonging to the cephalopod family, which also includes squid and octopus. They have a unique internal shell called a cuttlebone, which is used for buoyancy control. CUTTLEFISH are known for their ability to rapidly change color and texture in order to blend in with their environment. They are found in tropical and temperate waters around the world.