The term you are looking for is "mollusks." Mollusks are a diverse group of invertebrate animals that include clams, squids, snails, and many other organisms. As you mentioned, they typically have soft bodies but possess hard shells for protection. To find the answer to your question, you could start by identifying the characteristics of these animals. By recognizing that they are invertebrates and have hard shells, you can deduce that they belong to the broader category of mollusks.
