A ribbon worm can also be known as a Nemertean Worm. They are soft-bodied, narrow worms that can grow up to 60 meters in length. Other synonyms for a ribbon worm include proboscis worm, Nemertini, or Nemertinea. These creatures are commonly found in marine environments and have a unique proboscis that they use to capture prey. Another interesting synonym for this animal is a bootlace worm, due to their thin, elongated appearance. Ribbon worms have a wide range of colors, from pale white to bright pink, making them a fascinating addition to the ocean's ecosystem.