Palaeonemertea is a class of ribbon worms. There are 119 species of Palaeonemertea, in 15 genera and 4 families. It includes groups like Cephalothricidae, Tubulanidae, and Carinomidae. Individuals can grow to 5000 mm. They rely on ciliary gliding to move around.
EOL has data for 10 attributes, including: