Male Paper Nautilus - Argonauta hians
This Male Paper Nautilus - Argonauta hians is very small in size around 6-8 mm. It was hitching a ride on something else when I first saw it, this is a typical of their behaviour. They have also been seen to hitch rides on Jellyfish and other floating animals in blue water.
Male Paper Nautilus do not have shell unlike the female. Females are usually march larger in size.
An interesting fact about Argonauts - The males only mate once in their short lifetime, whereas the females are iteroparous, capable of having offspring many times over the course of their lives.
''Argonauta hians'', also known as the winged argonaut, muddy argonaut or brown paper nautilus, is a species of pelagic octopus. The common name comes from the grey to brown coloured shell. The Chinese name for this species translates as "Grey Sea-horse's Nest". 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 . The eggcase is characterised by a wide keel that gives it a square appearance, few.. more