The Strange Worm Bathybelos

previously undescribed creature in her net. The creature, an arrow worm less than two centimeters long, is the only one of its species ever found. Its pos? session of a dorsal nervous system?in which the nerves are arranged along the animal's back?sets it apart from all other members of its phylum, the Chaetognatha, and from most other groups in the animal kingdom as well. More important, this inconspicuous or? ganism, which Owre named Bathybelos typhlops, may help us to understand the conditions under which a few ani?