Class
Sagittoidea
Sagittoidea
4 species in this taxon
class of marine worms Sagittoidea (Sagittoidea) is a class of organisms united by key anatomical and physiological traits. It contains 2 orders with 4 known species. This includes the order groups Aphragmophora, and Phragmophora. It belongs to arrow worms (Chaetognatha).