Note

Pterygioteuthis hoylei: description continued

Annie Lindgren
  1. Arms
    1. Arms I - with globular suckers distal to hooks.
      Click on an image to view larger version & data in a new window
      Click on an image to view larger version & data in a new window


      Figure. Oral view of arm I from P. hoylei.  Top - female, right arm, distal region (with globular suckers).  Bottom - male, left arm. © Annie Lindgren

    2. Arms II - males can have enlarged hooks and hook sheaths.
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      Click on an image to view larger version & data in a new window


      Figure.  Right arm II of a male P. hoylei. Top - 4 hooks with sheaths intact.  Bottom - 4 hooks with sheaths removed.  © Annie Lindgren

    3. Arm IV - right.
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      Click on an image to view larger version & data in a new window


      Figure.  A female P. giardi (with no suckers or hooks).  Stained faintly with methylene bllue (green color). © Annie Lindgren

      Click on an image to view larger version & data in a new window
      Click on an image to view larger version & data in a new window


      Figure.  Oral view of male for P. hoylei.  Top - 1 sucker and 2 hooks visible.  Bottom - a recently preserved specimen with hooks, protective membranes, and chromatophores between membranes still visible. © Annie Lindgren

    4. Arm IV - hectcotylus
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      Click on an image to view larger version & data in a new window

      Click on an image to view larger version & data in a new window
      Click on an image to view larger version & data in a new window

      Figure. Hectocotylus (left arm IV) from a male P. hoylei. Top/Left - close-up view of hectocotyus teeth.  Bottom/Right - complete view of hectocotylized arm.  © Annie Lindgren

    5. Close-up of hectocotylus membrane (with numerous ridges and 2 large teeth)
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      Click on an image to view larger version & data in a new window

      Figure. Lateral side view of the hectocotylus plate and surrounding membranes from P. hoylei. © Annie Lindgren

  2. Tentacle club suckers in 4 even series.
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    Click on an image to view larger version & data in a new window

    Figure.  Oral view of tentacle club for a female P. hoylei. © Annie Lindgren

  3. Head
    1. Buccal crown with ridges only.
      Click on an image to view larger version & data in a new window
      Click on an image to view larger version & data in a new window

      Figure.  Oral view of the buccal membrane of a male P. hoylei. Note ridges that run along buccal membrane.  © Annie Lindgren

  4. Photophores
    1. Visceral photophores
      1. 1 abdominal organ (with 3 additional small organs anterior - posteriormost not visible in picture below).
      2. 2 branchial organs.
      3. 2 anal organs (smaller than branchial).
      Click on an image to view larger version & data in a new window
      Click on an image to view larger version & data in a new window

      Figure.  Ventral view of visceral photophores in a female P. hoylei. © Annie Lindgren

    2. Eye photophores with 10 large and 5 minute organs.
      Click on an image to view larger version & data in a new window
      Click on an image to view larger version & data in a new window

      Figure.  Ventral view of the small eye photophores of P. hoylei. © Annie Lindgren

Back to P. hoylei main page
About This Page

Annie Lindgren
Ohio State University, Columbus, Ohio, USA

Correspondence regarding this page should be directed to Annie Lindgren at alindgre@gmail.com

All Rights Reserved.

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