from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Plural form of cyclostome.


Sorry, no etymologies found.


Help support Wordnik (and make this page ad-free) by adopting the word cyclostomes.


  • Passing now to the classes that make up the group of vertebrates, we meet first the lampreys or cyclostomes without jaws, and the others with jaws, such as the fishes, amphibia, reptiles, birds, and mammals, each class distinguished by certain definite characters in addition to the vertebral column.

    The Doctrine of Evolution Its Basis and Its Scope

  • Very similar to the discoid gastrulation of the bony fishes is that of the hags or myxinoida, the remarkable cyclostomes that live parasitically in the body-cavity of fishes, and are distinguished by several notable peculiarities from their nearest relatives, the lampreys.

    The Evolution of Man — Volume 1


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