hypostome

hypostome englanniksi

1. Any of certain mouth appendages of some insects, arachnids, crustaceans, and hydrozoa; in particular:

2. The ventral mouthpart plate in trilobites;

3. The barbed attachment structure associated with the mouthparts of parasitic arachnids (e.g. ticks);

4. The oral tip surrounded by tentacles in hydrozoan cnidarians.

5. (quote-book); W. R. Evitt|title=Memoir 59: Silicified Middle Ordovician Trilobites|publisher=(w)|pageurl=https://books.google.com.au/books?id=K8RX_JEjRukC&pg=PA20&dq=%22hypostome%22%7C%22hypostomes%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjpsJazmNCHAxVqRmwGHd6YLksQ6AF6BAgxEAIv=onepage&q=%22hypostome%22%7C%22hypostomes%22&f=false|page=20

6. 2012, Georgia E. Lesh-Laurie, ''Chapter 5. Expression and Maintenance of Organismic Polarity'', Allison L. Burnett (editor), ''Biology of Hydra'', (w) (Academic Press), pages 160-161,

As a result or these interactions, the presence of a hypostome inhibits the formation of another hypostome nearby. Removal of the hypostome causes the level of inhibition to fall; regeneration of it restores this level (Webster, 1966).

7. {{quote-book|en|year=2020|author=Fatma El-Bawab|title=Invertebrate Embryology and Reproduction|publisher=Elsevier (Academic Press)|pageurl=https://books.google.com.au/books?id=m_rKDwAAQBAJ&pg=PA251&dq=%22hypostome%22%7C%22hypostomes%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjpsJazmNCHAxVqRmwGHd6YLksQ6AF6BAhfEAIv=onepage&q=%22hypostome%22%7C%22hypostomes%22&f=false|page=251

8. (quote-book)|title=Parasitology: An Integrated Approach|edition=2nd|publisher=Wiley|pageurl=https://books.google.com.au/books?id=2Eh1EAAAQBAJ&pg=PA191&dq=%22hypostome%22%7C%22hypostomes%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjpsJazmNCHAxVqRmwGHd6YLksQ6AF6BAhlEAIv=onepage&q=%22hypostome%22%7C%22hypostomes%22&f=false|page=191