from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Plural form of ostracod.


Sorry, no etymologies found.


  • Among the stems and leaves of the ancient mosses, the researchers found fossils of tiny crustaceans called ostracods, fragments of larval casings of mosquito-like flies called midges and a millimeter-wide bit of a beetle shell.

    Science News / Features, Blog Entries, Column Entries, Issues, News Items and Book Reviews

  • Their research has revealed fossilized evidence for reproduction using giant sperm in a group of small aquatic crustaceans, called ostracods, dating back to

    Scientific Blogging

  • Boy ostracods attract girl ostracods by using flashing lights.

    Archive 2009-07-01

  • Boy ostracods use "a special long leg" to pass sperm into girl ostracods.

    Archive 2009-07-01

  • Freshwater ostracods are remarkable for their high frequency of species which have abandoned sexual reproduction.


  • Freshwater ostracods go through eight moult stages before they mature.


  • While transitions to parthenogenesis are rare in most other animal groups, about one-third of all freshwater ostracods have given up sex.


  • Freshwater ostracods are free-living except for members of one group which are commensal on the gills of crayfish.


  • The ability of eggs, larvae, and adults to withstand freezing and desiccation is a very important biological characteristic which aids the dispersal of ostracods from one body of water to another.


  • Several large muscles are directly attached to the carapace, and these points of attachment leave scars that are useful in discriminating some groups of ostracods.



Log in or sign up to get involved in the conversation. It's quick and easy.