You can search the complete taxonomic tree of the species in the database. Click "Phylum" to get back to to the starting point. The thumbnails show examples of the Class, Order etc.

Phylum	Class	Order	Family	Species
Cnidaria	Anthozoa	Gorgonacea	Plexauridae	Eunicea
Cnidaria	Anthozoa	Alcyonacea	Plexauridae	Eunicea mammosa
Cnidaria	Anthozoa	Alcyonacea	Plexauridae	Muricea californica
Cnidaria	Anthozoa	Alcyonacea	Plexauridae	Muriceopsis flavida
Cnidaria	Anthozoa	Gorgonacea	Plexauridae	Paramuricea clavata
Cnidaria	Anthozoa	Gorgonacea	Plexauridae	Plexaurella
Cnidaria	Anthozoa	Gorgonacea	Plexauridae	Plexaurella nutans
Cnidaria	Anthozoa	Alcyonacea	Plexauridae	Plexauridae
Cnidaria	Anthozoa	Alcyonacea	Plexauridae	Pseudoplexaura