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Neoteuthis thielei: Sucker Structure

Richard E. Young and Michael Vecchione

Arm suckers:

SEM_photograph_of_arm_III_sucker. SEM_photograph_of_arm__III_sucker.

Although the arm III sucker (left) is much larger than the arm IV sucker (right), the dentition is very similar. Both suckers have broad truncated teeth although the arm III sucker has slightly more teeth than the arm IV sucker.

Tentacular club suckers:


Oral (left) and side (right) views of a large distal-manal sucker.


  • 26 sharp, pointed teeth.
  • Lobate inner edge of outer ring.

Oral-oblique view of a small sucker from proximal-manus (left).


  • Circular shape of sucker and its orifice.
  • 13 teeth all around inner ring; largest teeth on distal margin.
  • Three concentric series of plates with pegs on outer ring.
  • The narrow width of largest pegs relative to peg length.
The photograph on the right show the relative sizes of the suckers pictured above. Left - Arm III sucker. Left-middle - Large distal-manal sucker. Right-middle - arm IV sucker. Right - Proximal-manal sucker. Photograph_comparing_sucker_sizes.


These SEM photographs of the North Pacific N. thielei are very similar to those of a North Atlantic N. thielei. SEM photographs of the North Atlantic specimen can be seen here.


All photographs are scanning electron micrographs taken by R. Young.

About This Page

University of Hawaii, Honolulu, HI, USA

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

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