Note

Grimpoteuthis tuftsi: Description Continued

Richard E. Young and Michael Vecchione
  1. Digestive system
    1. Esophagus covered by dark purple tissue.
    2. Stomach and spiral caecum equal in size.
    3. Posterior salivary glands absent.
    4. Intestine short.
    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 the digestive tract of G. tuftsi, male, 72 mm ML. Drawing from Voss and Pearcy, 1990.

  2. Male reproductive tract
    1. Male reproductive tract illustrated but not described.
    2. 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. Male reproductive tract of G. tuftsi, 72 mm ML. Drawing from Voss and Pearcy, 1990.

  3. Female reproductive tract
    1. Proximal oviduct short; distal oviduct long.
    2. Aperature of oviduct flared with plicate collar.
    3. Oviducal gland finely plicate.
    4. 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. Female reproductive tract of G. tuftsi, 65 mm ML. Drawing from Voss and Pearcy, 1990.

  4. Eyes
    1. Large.

  5. Gills
    1. Half orange.
    2. 7-8 primary lamellae.
    3. 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. "Top" view of gill of G. tuftsi, holotype, 101 mm ML. Photograph by R. Young.

  6. Beaks
    1. Beaks illustrated but not described.
    2. 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 beaks of G. tuftsi. Left - Upper beak. Right - Lower beak. Drawings from Voss and Pearcy, 1990.

  7. Radula
    1. Radula with great individual variation. Radulas from three different octopods illustrated here.
    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. Radula, Beginning at top: Male, 72 mm ML; male, 93 mm ML; female, 65 mm ML. Drawings modified from Voss and Pearcy, 1990.

  8. Pigmentation
    1. Mantle and head light brownish-purple.
    2. Posterior borders of fins dark purple.
    3. Aboral web and arms darkish purple.
    4. Oral web and arms dark purple with lighter colored suckers and cirri.

  9. Measurements
    1. Measurements and counts can be found here.

Comments

The above description is from Voss and Pearcy, 1990.

References

Voss, G. L. and W. G. Pearcy. 1990. Deep-water octopods (Mollusca: Cephalopoda) of the Northeastern Pacific. Proc. Calif. Acad. Sci., 47: 47-94.

About This Page


University of Hawaii, Honolulu, HI, USA


National Museum of Natural History, Washington, D. C. , USA

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