You are probably looking for the different TYPES of echinoderms, they are listed below.
Echinodermata Subphylum: Eleutherozoa Superclassis: Asterozoa Classes: Asteroidea - †Somasteroidea Subphylum: Eleutherozoa Superclassis: Cryptosyringida Classes: Echinoidea - Holothuroidea -...
There are hundreds if not thousands of species in the phylum Cnidaria.
Flatworms; both parasitic and freeliving forms. Very diverse group of animals.
90,000
The phylum Echinodermata which, contains about 6,000 species.