Class
- Tentaculata
Ctenophores have retractile tentacles.
- Nuda
Ctenophores lacking tentacles; comprises one genus: beroe.
Also contains
- ctenophore
Biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes...
- Pleurobrachia
Sea gooseberries.
- Pleurobrachiidae
Sea gooseberries.