Okenia sp. 2 (12mm)
Photo by Atsushi Ono

Opisthobranch of the Week Data


Frequency on Okinawa: Collection Data:
[brackets indicate range for all Okinawa-collected specimens of the species]

Species Account:

        This attractive little goniodorid, Okenia sp. 2, is unknown from Okinawa's main island as of early-February, 2012. The above featured animal is one which was photographed from the rock of a steep slope off of Zamami Island, one of a series of islands in the Kerama Islands Group, which are located 30 ~ 40 kilometers west of the Okinawa capitol, Naha. This featured animal was photographed by Atsushi Ono during March of 2010 in fourteen meters of water. Atsushi's photographs are used here with his kind permission. It should be noted that Atsushi considers the species to be very rare in the Kerama Islands as he has seen only a single individual (pers. comm.). I've added a second page w/ an additional image of the same animal from the Kerama Islands, also photographed by Atsushi.

        Okenia sp. 2 is perhaps an undescribed species, I've done a precursory search of miscellaneous opisthobranch literature and can find nothing resembling it.

        I've personally photographed and collected two described species of Okenia from Okinawa's main island, previously featured on these pages at:

Page Date: 06 Feb '12
Page Modification Date: 06 Feb '12
Digitally manipulated photo
Copyright © 2012 Robert F. Bolland