Humboldt Squid stomach contents

Discussion in 'ID Requests' started by gmcbride, May 20, 2010.

  1. gmcbride

    gmcbride Cuttlefish Registered

    Joined:
    Sep 10, 2007
    Messages:
    18
    Likes Received:
    1
    This morning we dissected a Humboldt Squid that has been frozen since it was taken in Monterey Bay a few months ago. It was a spectacular beast, as they all are. But this one had some structures inside its stomach that have me stumped. The image here is the best we could muster with an iphone.
    Each strand is the same length, about 5cm. The end of each is rounded and the thickest part. Near the middle of each strand is one spiral coil. Closer to the base the strand becomes more narrow until it tangles with the others. The strands are together where the image appears whitest but they do not seem attached to each other. Individual strands are easy to disentangle. Each strand is crystal clear and is firmer than mesoglea: they a have the spring of heavy monofilament line.
    Very little else was inside the stomach other than some likely small squid eye lenses.
    We are guessing this is part of some worm mouth parts? Our chem teacher guessed pogonphorans? I am at a loss.
    any ideas?
    Greg McBride Aptos High School
    I have attached the image
     

    Attached Files:

  2. gmcbride

    gmcbride Cuttlefish Registered

    Joined:
    Sep 10, 2007
    Messages:
    18
    Likes Received:
    1
  3. chrono_war01

    chrono_war01 Colossal Squid Supporter

    Joined:
    Oct 7, 2004
    Messages:
    2,580
    Likes Received:
    4
    Looks like fresh shark's fin cartilage.
     
  4. Jean

    Jean Colossal Squid Supporter

    Joined:
    Nov 19, 2002
    Messages:
    4,218
    Likes Received:
    138
    Location:
    Dunedin, New Zealand
    I'm thinking spermatophores, it's a little hard to see in your pic, but your description sounds very much like them.
     

    Attached Files:

  5. Tintenfisch

    Tintenfisch Architeuthis Staff Member Moderator

    Joined:
    Nov 19, 2002
    Messages:
    2,083
    Likes Received:
    171
    Those are definitely spermatophores, or perhaps empty spermatophore tunics (they look pretty clear, as you say). I'm sure you have dissected squid before, and the mention of 'probable eye lenses' also suggests that this could indeed have been the digestive system, but... are you sure? The Needham's sac (in which the spermatophores are stored after production) is a long, fat organ (in mature males) that could conceivably be mistaken for the also long, fat (when full) stomach caecum. I ask because the sac would be a much likelier place for this number of spermatophores, especially given that they are still intact, not chewed.
     

Share This Page