Note

Pterygioteuthis gemmata Description

Annie Lindgren and Richard E. Young
  1. Arms
    1. Arms IV
      1. Small suckers in 2 series in males and females
        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 views of arms IV from Pacific P. gemmata.  Top - Female, left arm.  Bottom - Male, right arm. © Annie Lindgren

      2. Left arm hectocotylized; hectocotylus plate with many small teeth.
        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. Upper left - P. gemmata toothed plates from the hectocotylus of two males from off California (redrawn from Young, 1972) and from one male from off New Zealand (redrawn from Riddell, 1985).  Bottom left - P. microlampas toothed plates from two males from off New Zealand (redrawn from Riddell, 1985). Right - A cleared hectocotylus of P. microlampas from Hawaiian waters showing the toothed plate. Black dots throughout the arm tissue are artifacts. Photograph by R. Young.

        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 of P. gemmata, 27 mm ML, off Southern California, toothed plate not visible. Drawing from Young, 1972.


  2. Tentacle suckers - in 4 series with proximal 2-4 rows with enlarged dorsal suckers.
    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 vierw of a tentacle from a female P. gemmata. © Annie Lindgren

  3. Head 
    1. Buccal membrane - with irregular papillae.
      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 from a male P. gemmata (note numerous papillae).  © Annie Lindgren

  4. Pigmentation
    1. Tentacular chromatophores
      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.  Side view of a tentacle stalk (and chromatophores) from a female P. gemmata. © Annie Lindgren

About This Page

Annie Lindgren
Ohio State University, Columbus, Ohio, USA

Richard E. Young
University of Hawaii, Honolulu, HI, USA

Correspondence regarding this page should be directed to Annie Lindgren at alindgre@gmail.com and Richard E. Young at dickphyllisyoung@gmail.com

All Rights Reserved.

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Pterygioteuthis gemmata

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