Okenia nakamotoensis is a small dorid, recognisable according to following characteristics :
- the body is oval, pink or red, with long appendages on the back
- there are 5 pairs of appendages, white at the base and pink or red at the tip
- the rhinophores have the same colour than the body
- there are 3 gills, white at the base and pink or red at the tip
Okenia nakamotoensis feeds on the bryozoan Tropidozoum cellariforme, on which you have to look for this species. The former name is Hopkinsia nakamotoensis.

Okenia nakamotoensis is very similar to Okenia kondoi. They can be distinguished according to the number of dorsal appendages : O. nakamotoensis has 5 pairs, while O. kondoi has only 4 pairs of appendages
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Okenia nakamotoensis is also similar to Okenia hallucigenia. The colour of the dorsal appendages allows to distinguish them : they are completely pink in O. hallucigenia and white at the base in O. nakamotoensis.

Also, Okenia nakamotoensis could be mistaken for Okenia rosacea and Okenia hiroi. But, unlike O. nakamotoensis these 2 species have a large number of dorsal papillae.

African Indian Ocean

Asian Pacific Ocean