heaveninawildflower: Toucan (1801-1805) by Jacques Barraband (1767–1809) taken from ’Histoire Naturelle des Promerops’ by François Levaillant. Source - http://www.audubonhouse.org/barraband/barrapics.cfm?PageNum_rs=1 via Wikimedia.
Argonauta argo, also known as the greater argonaut, is a species of pelagic octopus belonging to the genus Argonauta. The female of the species, like all argonauts, creates a paper-thin eggcase that coils around the octopus much like the way a nautilus lives in its shell, hence the name paper nautilus. (via Illustrations conchyliologiques (1842))