A1 Saturday and Sunday, or Friday evening until Sunday night; the part of the week in which many people living in the West do not go to work: This/Next weekend we're going to see some friends. I have a lot of homework to do over the weekend. He spent the weekend fishing with his brother.
List of mollusks. 1  class Aplacophora. 2  clams, mussels, oysters, and scallops (class Bivalvia) 3  octopi, squid, cuttlefish, and nautili (class Cephalopoda) 4  snails and slugs (class Gastropoda) 5  class Monoplacophora. 6  class Polyplacophora. 7  class Scaphopoda. 8  extinct mollusks.
Types of Mollusk: Snails, Bivalves, Squid, and More. Most people think of mollusks as slow-moving creatures, like snails, or animals that hardly move at all, like mussels. This is only part of the picture. The oceans of the world were once dominated by schools of predatory mollusks called ammonites with sharp beaks and a surprising turn of speed.