Descriptions of the major species of Echinodermata (starfish, brittle star, sea urchin, feather sta...
A brief description of the phylum followed by a long list of annotated photographs.
Overview of the systematics and ecology of starfish, brittle stars, sea cucumbers, sea urchins, and...
Characteristics and phylogeny of the spiny-skinned animals: sea urchins, starfish, and their allies...
A collection of photographs of developing starfish and sea urchins with information about each.
Provides images from the printed books and manuscripts in the collections of the Smithsonian Instit...
Some characteristics of the phylum that includes starfish, sea cucumbers, sea urchins, crinoids and...
Project based at the Natural History Museum, London, aiming to provide information for amateurs and...