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.
clams, mussels, oysters, and scallops (class Bivalvia) 1  ark shell (family Arcidae) 2  cockles (family Cardiidae) 3  coquina clam (genus Donax) 4  gaper clams (Tresus nuttallii and Tresus capax) 5  geoduck (Panopea generosa) 6  jingle shells (family Anomiidae) 7  mussels (families Mytilidae and Unionidae) zebra mussel (genus Dreissena) 8  genus Nuculana.
Read and React-The Garden Snail Snail Classification You will be observing the common garden snail, Helix aspersa. It is from the Phylum Mollusca. There are more than 50,000 species of mollusk. They are invertebrates and include the octopus, squid, snails, slugs, clams, oysters, and many others. As diverse as this phylum is, all its animals include three physical traits. They have what is referred to as the: visceral mass, mantle and foot. Mollusks are further broken down into Classes.