OKINAWAN
OPISTHOBRANCH OF THE WEEK

Hallaxa sp. 1 (11mm)

Opisthobranch of the Week Data

Taxonomy:

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


Species Account:

        Hallaxa sp. 1 is considered to be very rare in the waters of Okinawa's main island as I have seen and collected only the above single featured animal. It was collected during a mid-morning SCUBA dive from an area of mixed sand and coral rubble. It was not found associated with any particular food source. I wouldn't bet on this animal being a Hallaxa species for certain but it's the nearest group I can place it into. Gosliner & Johnson, (1994) have nothing exactly like it in their review of the group but Hallaxa sp. 1 does appear to superficially resemble the white form of H. cryptica.

        I've previously featured the following five described species of Hallaxa in these pages:

  • H. cryptica
  • H. hileenae
  • H. indecora
  • H. iju
  • H. paulinae
  • Literature Cited:


    Page Date: 01 May '06
    Page Modification Date: 01 May '06
    Digitally manipulated photo
    Copyright © 2006 Robert F. Bolland