confirm this ID?

Discussion in 'ID Requests' started by dagtaggart, Apr 3, 2010.

  1. dagtaggart

    dagtaggart Cuttlefish Supporter

    Joined:
    Mar 16, 2010
    Messages:
    22
    Likes Received:
    0
    i was told this is an indonesian long-arm octopus, or amphioctopus marginatus. can anyone confirm or deny that for me? his mantle is about 3/4" and tentacles maybe 4-5". thanks!

    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
  2. Neogonodactylus

    Neogonodactylus Haliphron Atlanticus Staff Member Moderator

    Joined:
    Mar 17, 2003
    Messages:
    658
    Likes Received:
    137
    Looks like an Abdopus aculeatus to me.

    Roy
     
  3. dagtaggart

    dagtaggart Cuttlefish Supporter

    Joined:
    Mar 16, 2010
    Messages:
    22
    Likes Received:
    0
    how big does this species get? is it diurnal or nocturnal?
     
  4. Ryan Smith

    Ryan Smith Wonderpus Registered

    Joined:
    Feb 16, 2010
    Messages:
    193
    Likes Received:
    0
    Yeah, It looks like an Aculeatus. Not 100% sure though, it does have a few features that are a bit different but then again octos can change a few of these features. If it is an Acleatus it would be a common mistake as they come from the same area and are similar. BUT I believe you said it was nocturnal in another post? Correct me if Im wrong but if its nocturnal it is NOT an Aculeatus, and some species from the macropus complex, so if its nocturnal I would say it is the species the supplier said it is.
     
  5. mucktopus

    mucktopus Haliphron Atlanticus Staff Member Moderator

    Joined:
    Dec 31, 2003
    Messages:
    523
    Likes Received:
    51
    Looks like a juvenile Abdopus. If it's A. aculeatus then it's probably about half grown but there are some smaller species in the genus. We know of one nocturnal species, but it has much shorter arms.
     
  6. DWhatley

    DWhatley Cthulhu Staff Member Moderator

    Joined:
    Sep 4, 2006
    Messages:
    19,079
    Likes Received:
    1,126
    Location:
    Gainesville, GA USA
    Ryan, even though the little ?nocturnal macropus complex octos like Puddles and Beldar come from a Indonesia, they do not look like the abdopus complex animals and are easily distinguished. I did notice that the eyes are not open very wide and wonder if the tank lighting is too intense for this diurnal species though.
     
  7. dagtaggart

    dagtaggart Cuttlefish Supporter

    Joined:
    Mar 16, 2010
    Messages:
    22
    Likes Received:
    0
    should i try keeping only the actinics on during the day? he has been mostly nocturnal so far but did come out the one time during the day. also, it's only power-compact lighting, definitely not the brightest.
     
  8. DWhatley

    DWhatley Cthulhu Staff Member Moderator

    Joined:
    Sep 4, 2006
    Messages:
    19,079
    Likes Received:
    1,126
    Location:
    Gainesville, GA USA
    IMO it is a diurnal species and the squinted eyes (if they stay that way when it is out) suggest the light it too bright. You can try just the actinics (or just the white without the actinics) to see if it makes a difference in the eyes and the daytime appearances (too little lighting is not a problem for any octo but other tank inhabitants may be a concern). If it does then lighting adjustments may be in order.
     
  9. sedna

    sedna Larger Pacific Striped Octopus Supporter Registered

    Joined:
    Jul 13, 2008
    Messages:
    1,076
    Likes Received:
    104
    The aculeatus I've kept have been diurnal. I think it's generally accepted that octos don't need bright lighting, I only kept the actinics on with them. They still would nap in their dens durning the early afternoons, coming out all morning and the evenings. Have fun with him!
     

Share This Page