From Wikipedia, the free encyclopedia
Jump to: navigation, search
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Ostracoda
Order: Myodocopida
Family: Cypridinidae
Genus: Gigantocypris
Skogsberg, 1920 [1]

See text

Gigantocypris is a genus of ostracod crustaceans in family Cypridinidae,[1] and probably the most famous ostracod in the world.[2] Its members are extremely large for ostracods, measuring up to 25 millimetres (1.0 in) across.[3] The animals are orange–red in light, but live at depths of 900–1,300 m (3,000–4,300 ft),[3] where there is no natural sunlight. Despite this, they are equipped with a pair of large eyes which, rather than using lenses to focus light onto a retina, use parabolic mirrors a few millimetres across.[4] It is thought that Gigantocypris uses these eyes to find sources of bioluminescence for it to prey on,[2] and it feeds upon copepods and small fish.[3]


The genus contains six species:[1][5]


  1. ^ a b c "Gigantocypris Skogsberg, 1920". Integrated Taxonomic Information System. Retrieved October 13, 2010. 
  2. ^ a b Todd Oakley (July 24, 2008). "Ostra-blog 1 – Gigantocypris". Evolutionary Novelties. 
  3. ^ a b c "Giant ostracod". Monterey Bay Aquarium. Archived from the original on July 18, 2011. Retrieved December 3, 2009. 
  4. ^ "Concave mirror eyes". Encyclopædia Britannica. 
  5. ^ David Horne (2010). "Gigantocypris Skogsberg, 1920". World Register of Marine Species. Retrieved September 7, 2011. 

External links[edit]