Horned+Sea+Star-+Richmond+Wilson

= **__Horned Sea Star (Protoreaster nodsus)__** = =__Class: Asteroidea__ = = =

**-Mouth and anus are close together on the underside, the anus is at the center of the disc together with the water intake. **
===**-The upper surface is often very colorful. Minute pincer-like structures called pedicellaria are present. These structures ensure that the surface of the arms stay free from algae. The underside is a lighter color. **=== ===**-There are a few starfish that have 6 or 7 arms. Others normally have 5 arms but now have more arms, because after an injury an arm divided and grew into two arms. **=== =__**Life Cycle:**__ =