The difference between Bimacs.

Discussion in 'Physiology and Biology' started by Castor, Jul 22, 2003.

  1. Castor

    Castor Vampyroteuthis Supporter

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    Hello all, I have a question that I have been trying to answer with a little research. :?: I don't fully understand the broken/unbroken chain attributes of the two species, but is that the only difference? Just curious.

    Thanks in advance!

    I would also like to inform everyone that Henry is under suspicion for cannibalism. I thought he and Harvey would have plenty of space, and hiding places to get along with one another, but I was wrong.
     
  2. Steve O'Shea

    Steve O'Shea Colossal Squid Supporter

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    Hmmmmmm. Exactly what is your question (could you recast it)? Sorry, as written it has me a little confused.
    Ta
    Steve
     
  3. Nancy

    Nancy Titanites Staff Member Moderator

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    Hi Castor and Steve,

    I think what Castor is referring to is the difference between O. bimaculatus and Octopus bimaculoides. The bimaculoides is the "bimac" we often refer to on this website.

    O. bimaculatus is larger (body 8", arms almost 32"), has a smaller egg size, and a different false eye spot, with a broken chain.

    O. bimaculatus (our "bimac") has a body amost 5" long and arms almost 14 inches. It has larger eggs, is more day active, and has an iridescent ring in the form of an unbroken chain.

    Steve, you probably have much more information than this, but these are the main differences, as far as I can find.

    I've attached an Ollie pic which shows his unbroken ring.

    Castor, does this mean that Harvey is missing?

    All the best,
    Nancy

    [​IMG]
     
  4. Castor

    Castor Vampyroteuthis Supporter

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    Nancy, that is exactly what I was looking for. Thanks for the quick response. The picture helped out a lot. You guys are the greatest! :notworth:

    Unfortunately, Harvey is either missing, or, as I believe, succumb to Henry's appetite. :(

    Felix, El Gato!
     
  5. OctopusV

    OctopusV GPO Registered

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    Interesting, I was wondering about that myself until I found this thread, I have a question myself: How many species of Two-Spot Octos are there, and are there any differences in location? Thanx in advance, OV!

    :nautilus: :octopus: :squid: :meso: :ammonite: :nautiloi: :vampyro: :belemnit: :cuttle:
     
  6. joel_ang

    joel_ang Architeuthis Registered

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    Well there are 2 "two spot octopuses" which we currently know of.
     
  7. Scouse

    Scouse Haliphron Atlanticus Registered

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    Does anyone have a piciture of O. bimaculatus showin the broken chain?
     
  8. lotus101

    lotus101 O. vulgaris Registered

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    I know you can't see the eyespots, but I tried.
    I found it in MarineDepot.com.

    [​IMG]
     
  9. Colin

    Colin Colossal Squid Supporter

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    Octopus filosus also has 2 spots like a bimac... quite similar looking
     
  10. joel_ang

    joel_ang Architeuthis Registered

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    Also octopus cyanea has two eye spots but they are black, not the iridesent blue which can be found on bimaculoides or bimaculatus.
     

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