Little Omani Cuttlefish

Discussion in 'ID Requests' started by Hajar, Dec 23, 2009.

  1. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    Greetings all.

    Can anybody identify this little (roughly 10 cm) cuttlefish? It was in very shallow water at low tide near the Oman Dive Centre close to Muscat.

    Apologies for the poor images (two are stills from video). There are dark and light transverse bands on the mantle and an abundance of tubercles. When we were face to face it raised two tentacles to me.

    I think the large cuttlefish we see in the supermarkets here are Sepia pharaonis, but this little animal looks very different.

    Grateful for your help.
     

    Attached Files:

  2. cuttlegirl

    cuttlegirl Colossal Squid Supporter Registered

    Joined:
    Sep 16, 2005
    Messages:
    4,891
    Likes Received:
    236
    Location:
    Pittsburgh, PA
  3. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    Thank you for that!

    Excellent to see the variety of cephalopods living in the local sea. I couldn't identify my cuttlefish from the various Sepia illustrations, but will start to look out for different cuttlebones on the beach. I have just one in the house right now, collected for comparison with this fossil http://rusmithsgallery.fotopic.net/p58047870.html.
     
  4. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
  5. OB

    OB Colossal Squid Staff Member Moderator

    Joined:
    Oct 19, 2003
    Messages:
    3,084
    Likes Received:
    46
    S. latimanus gets fairly big, so yours would have been a juvenile, hard to tell from the pictures, they're so versatile in their presentation; just look at this one mesmerizing an intended prey (lure in this case).

     
    #5    Top
  6. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    Thanks! I find that flicker show quite amazing.
     
  7. OB

    OB Colossal Squid Staff Member Moderator

    Joined:
    Oct 19, 2003
    Messages:
    3,084
    Likes Received:
    46
    They call it "passing cloud", fairly common, actually, amongst cephalopods, check out little Flamboyant walking over the seafloor, happily passing its cloud :smile:

     
    #7    Top
  8. DWhatley

    DWhatley Cthulhu Staff Member Moderator

    Joined:
    Sep 4, 2006
    Messages:
    19,078
    Likes Received:
    1,123
    Location:
    Gainesville, GA USA
    O! B!
    :tomato:

    If you get the opportunity to photograph more, one of the physical elements that seems to be diagnostic is the shape of the eye (iris) so getting a clear, close picture may provide a better clue than any coloration or other body part. taking pictures of the aquarium residence, I find I see a lot more in some of my photos than what I observed at the moment of taking the picture so just targeting the eye and shooting away might produce more than you would think. These little guys are so tiny though, that I am not sure there is any possible id at this point. Have you gone back to see if the appear territorial?
     
  9. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    Thank you Ob! That is fascinating, astonishing and also very entertaining to watch.

    "D", I'll take better pictures next time and look them in the eyes. This one was alone and very well camouflaged until he moved. We see lots of juvenile fish (especially butterfly,damsel, sergeant majors, goatfish, groupers, some rays and morays), in the shallows so I would guess this little cuttlefish was a juvenile too. There are no mangroves in this bay, but there are in nearby bays (Qurum where I live and Bandar Khairan) and these must be great environments for the juveniles to hide in.
     
  10. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    I went for a swim after work today and spent a good long while watching these two adults. Awesome. There was quite a lot of conversation going on between the two of them - partly through touch and partly through colour changes. Can anyone put a name to this species?
     

    Attached Files:

  11. CaptFish

    CaptFish Colossal Squid Staff Member Moderator

    Joined:
    Jul 9, 2009
    Messages:
    2,832
    Likes Received:
    96
    Location:
    South Florida
    Cool! How big were they?
     
  12. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    Roughly half a metre long.
     
  13. CaptFish

    CaptFish Colossal Squid Staff Member Moderator

    Joined:
    Jul 9, 2009
    Messages:
    2,832
    Likes Received:
    96
    Location:
    South Florida
    Woah, they're huge! I thought you were going to say a few centimeters. Thanks for sharing I have no idea what they would be, but i'm sure an expert will be along shortly.
     
  14. Hajar

    Hajar Haliphron Atlanticus Registered

    Joined:
    Mar 7, 2009
    Messages:
    540
    Likes Received:
    60
    Yes, they were very impressive. I floated just above them for about 15 to 20 minutes. I'm struggling with a video editor to make a snippet with a file size small enough to load here.
     
  15. CaptFish

    CaptFish Colossal Squid Staff Member Moderator

    Joined:
    Jul 9, 2009
    Messages:
    2,832
    Likes Received:
    96
    Location:
    South Florida
    The videos on TONMO dont work work right now you need to use youtube or photobucket
     
  16. Thales

    Thales Colossal Squid Staff Member Moderator

    Joined:
    Jan 22, 2004
    Messages:
    2,996
    Likes Received:
    69
    The first one is tuff, but not S. latimanus.

    The others look like Sepia pharaonis to me.
     
  17. OB

    OB Colossal Squid Staff Member Moderator

    Joined:
    Oct 19, 2003
    Messages:
    3,084
    Likes Received:
    46
    They're all the same couple, Rich :wink: That blue lining gets me, what beauty!
     
  18. DWhatley

    DWhatley Cthulhu Staff Member Moderator

    Joined:
    Sep 4, 2006
    Messages:
    19,078
    Likes Received:
    1,123
    Location:
    Gainesville, GA USA
    I was wondering if that fluorescent blue ring would be diagnostic AND if it would suggest toxicity.
     
  19. Thales

    Thales Colossal Squid Staff Member Moderator

    Joined:
    Jan 22, 2004
    Messages:
    2,996
    Likes Received:
    69
    Olaf, I meant the first one pictured in the thread! :D
     
  20. Thales

    Thales Colossal Squid Staff Member Moderator

    Joined:
    Jan 22, 2004
    Messages:
    2,996
    Likes Received:
    69
    Diagnostic I think yes, but not toxic. I have a group of S pharaonis at home (yes I know, I should take some pics) and they show that ring when excited or striking food. Interestingly, these guys are way different from S. bandensis - much more active, aggressive, and they hoard food!
     

Share This Page