IUCN threat status:

Data Deficient (DD)

Brief Summary

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Sepiolina nipponensis is a peculiar sepiolid whose characteristics place it between the Heteroteuthinae and the Sepiolinae. The tentacular club with a normal keel is similar to that of the Sepiolinae while the silvery sides, ventral shield and large visceral photophore are similar to those of the Heteroteuthinae. A better understanding of the features and habits of this species should greatly aid our understanding of the evolution within the family.

Brief diagnosis:

A heteroteuthin ...

  • with mantle narrowly fused to head dorsally.
  • without tentacular organ on tentacles.


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