- Tentaculata, class Tentaculata - ctenophores have retractile tentacles
--1 is a kind of class
--1 is a member of Ctenophora, phylum Ctenophora
--1 has members:Cydippida, order Cydippida, Cydippidea, order Cydippidea, Cydippea, order Cydippea; Platyctenea, order Platyctenea; Cestida, order Cestida; Lobata, order Lobata