Invertebrate animals features 3ºVersión en línea Join each vertebrate group with its special features. Une cada grupo de vertebrado con sus características especiales. por Jesús Mínguez Corrales 1 Molluscs 2 Insects 3 Arachnids 4 Worms They have a soft and muscular body. They have shell. The snails are. They have six legs. They have three body parts. They have wings. They have antennae. The ants are. They have eight legs. They have two body parts. They have cephalothorax. The spiders are. They have a long and soft body. They have no legs. The leech and the earthworm are.