Anatomy & Physiology

The caputserpentis shell body is cover by itself mantle. The tentacles are structured on the mantle tissue. Caputserpentis use tentacles to capture food and sense. There is two sensory tentacles in front end. Also eyes and inhalant water siphon are located in the same position. The tentacles were distributing all over the mantle surface to achieve the maximum surface area to capture food. Caputserpentis move by using the muscular foot tissue. There is two ways for gastropods animal to attach, using the peristaltic muscle and the mucus to glide. The thick muscular foot tissue can produce mucus as lubricant when moving and reduce desiccation (Denny 1980). The main function of shell is to support the animal body structure and protect the animal from predator, also can avoid from over drying to death (Meyer 2003). Shell is formed by the secreted calcium carbonate from the mantle margin cells. The blood in mollusca contain large amount of calcium carbonate. That calcium carbonate were absorbed from the sea water and food. The mantle cells concentrate the calcium carbonate and create the product of shell structure as calcite (Arakawa 1965).