• Knobby or knobbed argonaut
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Coleoidea
Superorder: Octopodiformes
Order: Octopoda
Suborder: Incirrata
Superfamily: Argonautoidea
Family: Argonautidae
Genus: Argonauta
Species: Argonauta nodosa
Florianopolis, Santa Catarina, Brazil
165mm
From my collection
via Flickr https://flic.kr/p/2ipCBJD