Noalda sp. 1 (10mm)
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 cephalaspid, Noalda sp. 1, is unknown from Okinawa's main island as of early-November, 2010. The above featured animal is one which was photographed from a sandy bottom environment 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 twenty-seven meters of water. Atsushi's photograph is used here with his kind permission. It should be noted that Atsushi considers the species to be rare in the Kerama Islands as he has collected only two individual and seen one uncollected animal (pers. comm.).

        The above featured animal is probably the same species as the one shown in Gosliner, et al, 2008 (Noalda sp. 3, p. 38). In addition, the same individual as the above featured animal is also presented in Bill Rudman's Sea Slug Forum.

        I've added a second page with two additional images of Noalda sp. 1.

        As of the current date (late Dec '11) three undescribed species of Noalda are known from Okinawan waters and are featured on these pages. These three species are:

  • Noalda sp. 1 - The above featured animal
  • Noalda sp. 2
  • Noalda sp. 3
  • Literature Cited:

    Page Date: 08 Nov '10
    Page Modification Date: 26 Dec '11
    Digitally manipulated photo
    Copyright © 2011 Robert F. Bolland