• TONMOCON VII Announced | MBL at Woods Hole | Apr 6-8, 2018
  • Thanks for visiting! TONMO is the world's greatest online cephalopod enthusiast community, with interactive content going back to May of 2000, and a biennial conference. If you'd like to join in on the fun, become a TONMO member -- it's easy and free. You can follow us on Facebook and Twitter for more cephy goodness.


need an ID!

sedna

Larger Pacific Striped Octopus
Staff member
Moderator
Joined
Jul 13, 2008
Messages
1,096
Location
Livonia, MI
#1
All right, I've had him/her for a couple of days now and got a couple of shots good enough to post for an id. It seems bigger than Al (an aculeatus) but very similar in patterning and coloration. It was very shy at first but is warming up. I will start a journal after I get an ID and a name...
 

Attachments

DWhatley

Cthulhu
Staff member
Moderator
Joined
Sep 4, 2006
Messages
19,811
Location
Gainesville, GA
#3
Please tell me there is NO eyespot (it would be a black, maybe nickle size circle below each eye) on this beautiful octo! Is it day active? The eye markings and dots are making me worry that he will out grow your tank. There are others with eye starbursts and dots though. Have you seen it spread its webbing? If so does it go all the way down the arm when spread?
 

sedna

Larger Pacific Striped Octopus
Staff member
Moderator
Joined
Jul 13, 2008
Messages
1,096
Location
Livonia, MI
#5
It's tough to tell much about this one so far... He is active in the day, until we walk in the room. When I peek around the corner he's light colors, dancing around the glass and playing with the lego Divemaster Mike. Once we are spotted, he gets dark, patterns and hides. We got him curious last night by playing hide and seek, he was interactive in the early evening. His mantle is about 6 in give or take. While I was watching on Wed. he did that thing where he put up his front 2 arms, as in a guarding block (put up your dukes!), like in the photo Thales showed us, D. I don't think there are eyespots, still hard to tell. What else could be helpful for an ID?
 

sedna

Larger Pacific Striped Octopus
Staff member
Moderator
Joined
Jul 13, 2008
Messages
1,096
Location
Livonia, MI
#7
O.k., there is a reason people don't ask me to approx. size and distance... I got out a ruler and held it up to the tank, the mantle is more like 3-4 inches. I don't think the webbing extends all the way down the arm when it is spread. It totally does the skunk stripe thing on the mantle, and there are some "eyespots" on the mantle up above the siphon. There are some SMALLISH white spots above the arms, but nothing dramatic. I am going ahead and saying it is diurnal, just shy. As I mentioned before, when we walk into the room and it's alone, it is active on the glass and light grey. Right now it is watching me watch it, and is mimicing the live rock it is on. This one has the ability to look so much like the live rock that you can be staring straight at it and can't see it, but then maybe if Al hadn't been older he'd have done that, too. I can see that the tip of the first arm is blunt, maybe lost and grown back.
 

sedna

Larger Pacific Striped Octopus
Staff member
Moderator
Joined
Jul 13, 2008
Messages
1,096
Location
Livonia, MI
#9
If you enlarge the second picture of the octo on the rock, you can see the spots I mentioned. On the mantle above the eye, it is a lighter colored spot, and then above the arms there are smaller white spots ringed in black. Arms also seem generally thicker than Al's (my old aculeatus) but again this one is larger... and long, as I attempt to measure against the glass (it is out and visiting right now!) I get at least 10- 12 in.
 

DWhatley

Cthulhu
Staff member
Moderator
Joined
Sep 4, 2006
Messages
19,811
Location
Gainesville, GA
#10
If you can poke your head (well camera) around a corner and zoom in, try to get a good shot of the black ringed white spots below the eye.
 

DWhatley

Cthulhu
Staff member
Moderator
Joined
Sep 4, 2006
Messages
19,811
Location
Gainesville, GA
#13
shipposhack;125195 said:
If there are eyespots it may be Octopus Cyanea, though I am not very confident in that ID from the pictures.
That's where I am trying NOT to go ....:hmm:
 

Animal Mother

Architeuthis
Supporter
Joined
Sep 8, 2006
Messages
2,364
#14
Nah, not cyanea. They're like a ginormous hummelincki.

The thing about those pictures is they look just like Grover poses to me, but the size... do any of the Abdopus group get that big?
 

sedna

Larger Pacific Striped Octopus
Staff member
Moderator
Joined
Jul 13, 2008
Messages
1,096
Location
Livonia, MI
#15
Well, here are a couple more shots, a little blurrier than I'd like. The one sure way to get this one to hide is to take pictures. This is the color it is while it is relaxed and exploring when it thinks it is alone. I didn't mean to mislead you with descriptions, there are small white spots above each arm, but not two specific "eyespots" UNDER the eyes. There are some spots on the mantle, where I would say are ABOVE the eyes or behind them. These spots are lighter in color and not ringed in any other color. It's little "horns" seem to start there. For the most part, it looks a lot like my last octo (Al, see journal) but bigger and more secretive. Maybe better at mimicing the live rock, too... I'm just about ready to move this discussion over to the journals section.
 

Attachments

DWhatley

Cthulhu
Staff member
Moderator
Joined
Sep 4, 2006
Messages
19,811
Location
Gainesville, GA
#16
Animal Mother;125203 said:
do any of the Abdopus group get that big?
Mucktopus has said that there a quit a few in the Abdopus group and that they are difficult to identify but Norman is too old to use the Abdopus naming (He uses the term horridus species complex that seems to be the group now called Abdopus).

The mantle size on Sedna's rules out a lot of the ones where I find the eye star (Including the Northern Star-eye, kagoshimensis pg 229) so I am very glad she does not see an eye-spot but this description mentions that it is not always visible and I keep seeing a shadow where the eye spot should be ...
 

Members online

No members online now.