Brittle Star - Information from Wikipedia on these echinoderms which are closely related to starfish, including their range, anatomy and locomotion. The Ophiuroidea - A brief introduction to modern and ancient brittle stars by UCMP Berkeley. Ophiothrix fragilis - Photographs and detailed information from the Marine Life Information Network. Amphiura chiajei - Information on this brittlestar and its distribution round the coasts of Britain, provided by the Marine Life Information Network. Amphiura filiformis - Photograph and detailed information from the Marine Life Information Network. Common Brittlestar: Ophiothrix fragilis - Photographs and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation. ADW: Subclass Ophiuroidea - Photographs and information on the basket stars, brittlestars and snake stars from the Animal Diversity Web.