Chaetognatha (Arrow Worms) is a phylum of animals. There are 132 species of Arrow Worms, in 26 genera and 9 families. This phylum has been around since the cambrian period. They are carnivores. They rely on dorso-ventral undulatory swimming to move around.
EOL has data for 22 attributes, including:
The environments in which many arrow worms species are known to live. Select an environment to see its arrow worms species checklist.