Octopus with branching arms

Tintenfisch

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Here's the Smith article; it's quite brief but does include a (rather whimsical) illustration, partially reconstructed since he mentions most of the head and viscera having been removed. :roll:





 

Tintenfisch

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It's only been 14 years since someone commented on this thread... time to resurrect :periscop:

I've seen something similar in squid twice, as well. One was a submature specimen of Onykia robusta where it looked like some arm damage had resulted in regenerating suckers, but also a bit of haywire arm regeneration, almost like an additional arm with a dense cluster of suckers was branching off (see attached black & white fig). On MBARI's Western Flyer a couple years ago, we also got a specimen of Octopoteuthis deletron where one of the arm-tip photophores (which are known to autotomise) was bifurcated (attached color fig).
 

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tonmo

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It's only been 14 years since someone commented on this thread... time to resurrect :periscop:
Love it!

One was a submature specimen of Onykia robusta where it looked like some arm damage had resulted in regenerating suckers, but also a bit of haywire arm regeneration
Interesting... so yeah maybe if there's a wound or something mid-arm, the arm regeneration just kicks in at that spot...
 

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