Janolus sp. 7 (13mm)
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:

        Atsushi Ono considers Janolus sp. 7 to be very rare in the waters of the Keramas* and reports seeing only two animals. The above featured animal was found by Atsushi in three meters of water between stones and dead coral. I've added an image of the second, but uncollected, specimen from the Keramas. This second animal was also photographed by Atsushi in the Keramas.

        I've not found Janolus sp. 7 in the waters of Okinawa's main island as of the current date. I have however featured a series of described and unknown Janolus species previously on these pages. These Janolus species are:

  • J. mirabilis
  • J. savinkini
  • J. toyamensis
  • J. sp. 1
  • J. sp. 2
  • J. sp. 4
  • J. sp. 5
  • J. sp. 6
  • J. sp. 7 (the above featured animal)
  • J. sp. 8

  •         * Keramas = the Kerama Islands Group, located 30 ~ 40 kilometers west of the Okinawa capitol, Naha.

    Page Date: 26 Jun '06
    Page Modification Date: 01 Sep '14
    Digitally manipulated photo
    Copyright © 2014 Robert F. Bolland