The Argonauts are a group of pelagic octopuses. They are also called paper nautiluses, referring to the paper-thin eggcase that females secrete. This structure lacks the gas-filled chambers present in chambered nautilus shells and is not a true cephalopod shell, but rather an evolutionary innovation unique to the genus Argonauta. It is used as a brood chamber and for trapped surface air to maintain buoyancy. 

The Argonauts are a group of pelagic octopuses. They are also called paper nautiluses, referring to the paper-thin eggcase that females secrete. This structure lacks the gas-filled chambers present in chambered nautilus shells and is not a true cephalopod shell, but rather an evolutionary innovation unique to the genus Argonauta. It is used as a brood chamber and for trapped surface air to maintain buoyancy. 


Jan 30th 2012 · 389 notes · Tags: #Argonaut #Cephalopod #Ocean #Under Water #Octopus #Cephalopod
  1. moonage reblogged this from pipco
  2. mergulhobyandre reblogged this from apinetree
  3. f3l0ny3 reblogged this from apinetree
  4. chrisinhou reblogged this from apinetree
  5. apinetree reblogged this from leprocrastinateur
  6. that-devil-named-vince reblogged this from leprocrastinateur
  7. leprocrastinateur reblogged this from build-your-bridge and added:
    The Argonauts are a group of pelagic octopuses. They are also called paper nautiluses, referring to the paper-thin...
  8. cock-speed reblogged this from fabulousasgard
  9. fabulousasgard reblogged this from apitoxin
  10. leftonthecouch reblogged this from lesbianinwonderland
  11. lesbianinwonderland reblogged this from allnaturallymadebyman
  12. allnaturallymadebyman reblogged this from pignite
  13. dumble-c0re reblogged this from musicbeatstherapy
  14. ekamanganese reblogged this from phasmidhugs
  15. 123milesapart reblogged this from musicbeatstherapy
  16. musicbeatstherapy reblogged this from community-sandwich
  17. community-sandwich reblogged this from wigmund
  18. wigmund reblogged this from phasmidhugs
  19. ascentasightasound reblogged this from phasmidhugs
  20. newfriendly reblogged this from phasmidhugs
  21. thehumansin reblogged this from centaurstestickle
  22. toastchan reblogged this from robbiethewabbit
  23. robbiethewabbit reblogged this from bufudyne
  24. pignite reblogged this from apitoxin
  25. bufudyne reblogged this from apitoxin
  26. apitoxin reblogged this from chiakii-nanamii
  27. chiakii-nanamii reblogged this from centaurstestickle