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Notonykia Nesis, Roeleveld & Nikitina, 1998

K.S.R. Bolstad, Richard E. Young, and Michael Vecchione
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taxon links [up-->]Notonykia nesisi [up-->]Notonykia africanae [down<--]Onychoteuthidae Interpreting the tree
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Containing group: Onychoteuthidae

Introduction

The most distinctive features of this genus are the intermediate number of occipital folds, the low number of hooks on the manus, and the high number of suckers on the distal portion of the club (30-40).  These suckers cover the terminal pad and the distal portion of the club proper.

Brief diagnosis:

An onychoteuthid...

Characteristics

  1. Tentacles
    1. Marginal suckers absent proximally; may flank hooks V8 and V9 through at least 177 mm ML in N. africanae.
    2. Manus with 16-18 hooks.
    3. Reduced dacylus present.
    4. Terminal pad present.
    5. 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 tip of the tentacular club of N. africanae, 40 mm ML. Note the distinct change in sucker size between the dactylus and the terminal pad. Photograph by R. Young.

  2. Head
    1. 6-7 occipital folds on each side in subadults

      The arrow in the photograph to the left points to the olfactory organ on occipital fold no. 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. Dorsolateral views of the head of N. africanae. Left - 5 of the 6 occipital folds visible, 69 mm ML, preserved. The arrow points to the olfactory organ on occipital fold no. 2. Photograph by R. Young. Right - 6 of the 7 occipital folds visible (fold no. 1 not visible), holotype. Drawing modified from Nesis, et al. (1998).

  3. Mantle
    1. Skin smooth.
    2. Gladius visible dorsally only between fins.
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      Click on an image to view larger version & data in a new window


      Figure. Dorsal view of mantle and fins of N. africanae, 69 mm ML. Photograph by R. Young.

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  4. Photophores
    1. Absent.

Comments

Except for the photographs, this description is from Nesis et al. (1998) and Bolstad (2007).

Nomenclature

According to Nesis et al. (1998), this genus erected for squid that had previously been identified as a "Notalian form" of Onychoteuthis banksii, a South Atlantic form of Ancistroteuthis lichtensteinii, or as Onykia (?) verrilli (Pfeffer).

References

Nesis, K. N., M. A. C. Roeleveld and I. V. Nikitina. 1998. A new genus and species of onychoteuthid squid from the Southern Ocean. Ruthenica 8:153-168.

Bolstad, K.S. 2007. Systematics and distribution of the New Zealand onychoteuthid fauna (Cephalopoda: Oegopsida), including a new species, Notonykia nesisi sp. nov. Reviews in Fish Biology and Fisheries 17:305-335.

Title Illustrations
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Click on an image to view larger version & data in a new window
Scientific Name Notonykia africanae
Reference Nesis, K. N., M. A. C. Roeleveld and I. V. Nikitina. 1998. A new genus and species of onychoteuthid squid from the Southern Ocean. Ruthenica 8:153-168.
Sex Female
Size 125 mm ML
Type Holotype
Copyright © Ruthenica
About This Page


EOS Research Institute, Auckland University of Technology, New Zealand


University of Hawaii, Honolulu, HI, USA


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

Correspondence regarding this page should be directed to K.S.R. Bolstad at , Richard E. Young at , and Michael Vecchione at

All Rights Reserved.

Citing this page:

Bolstad, K.S.R., Richard E. Young, and Michael Vecchione. 2016. Notonykia Nesis, Roeleveld & Nikitina, 1998. Version 29 August 2016 (under construction). http://tolweb.org/Notonykia/108188/2016.08.29 in The Tree of Life Web Project, http://tolweb.org/

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