Is this an O. briareus?

lexcanaves

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I was supposed to receive a Pygmy/Dwarf species of octopus from my LFS. He looked like one at the store, but as soon as he got in the tank and spread his legs...uh-oh. A bit larger than expected. I have gotten a good opinion that believes it may be the O. briareus species. I don't know much about them to agree or disagree, but the different coloration and lack of that "irridescence" makes me wonder. Thanks for any help here!
Side note: I have a 36 gallon tank, so if it is a briareus, he will have to be returned the ocean at some point :[

Mantle: About 1.5 inches
Arm tip to Arm tip: Around 7-8 inches. I haven't been able to measure since the 1st day, but when he slinks up the sides I can tell they are longer than the original 6 in. that I measured.

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Nancy

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O. briareus has deep webbing between the arms, and this octopus appears to have almost none. So it doesn't seem to be a briareus. I looked back at photos of my briareus at 4 months, and webbing was apparent.

Find out from your LFS if this is a local species or comes from somewhere else (and ask where).

You might also try to post a couple of additional photos.

Nancy
 
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DWhatley

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Alexis,
Do you have any idea of what ocean it came from? The arms look too long to be Mercatoris but it does not appear to have enough webbing to be a baby Briareus. The Joubini is supposed to look undistinguishable from the Merc but Normans photos actually show quite a difference. Do you see any faint striping on the arms (left to right)? Does it ever show eye horns? Is it always red?
 
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Colin

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just to add that i agree that it is not looking like briareus - more pics would help though
 
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lexcanaves

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Yes it is local, from the coast of Florida. They go diving around the Florida Keys and that is where they picked them up. Their other catch was a small O. vulgaris (that was my observation, not theirs; they actually had both octos listed as "O. vulgaris"). Those are all the photos I have right now but I always have my camera ready at night, so I'll post as soon as I get some more.
Yeah, the webbing that I have seen in briareus pictures is non-existent in Doctor.
Never any eye horns that I have seen. And he seems to always stay that reddish-brown color, sometimes with a little grey like in the picture where he is feeding.
And now that you mention the striping, one night that he was exploring (which is not too often, he is pretty shy), it looked like he had some horizontal striping on his arms. It was under the red light so I couldn't say what color, maybe white-ish or tan stripes. And they were faint as you said dwhatley. Not pronounced or very noticeable.

This is the only other picture I have that is not blurry. Its during acclimation, the only time he has ever looked completely grey.
Acclimation2.jpg
 
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DWhatley

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AM,
Is Kalypso ever Merc red though? 'Tane never is (although he turns almost every other shade of brown, including patches of the orangish color in your photo).

I still think the arms are too long for a Merc but the color is right and the arm tapering (different from you pic of the young Kalypso I think) and Norman points out a pale striped look on the Joubini but I have never seen one alive or a photograph of a confirmed one (other than in Norma). The grey, however, was not a color I see in my little group (and I have seen on Octane) and the picture in Norman shows a greyish tint to the stiping. The Joubini is native to FL and is supposed to be abundant so I will stick with my guess unless it starts to grow :razz:
 
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Yes, when Kalypso was still fairly small she usually stayed deep red/brown. With exception of her arrival, I didn't see a trace of blue shimmer on her body or the pale blue/white coloration on her arms until I'd had her for several weeks.

It's from the Gulf/Caribbean Sea area. VERY long arms. I'm convinced personally.
 
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lexcanaves

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From things I have read about dwarf species personality-wise, and Doctor Octopus is just as reclusive and VERY nocturnal, if there is such a thing. BUT the physical descriptions are closer to the briareus that A.M. is describing. All I have to do is wait and see, I guess. Thanks for the replies they have all been very helpful.
How long do briareus typically live in the wild? I know that dwarf species are typically shorter lived.
 
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