Rostanga sp. 3 (25mm)
Photo by Jeffrey E. Heitchler

Opisthobranch of the Week Data


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

Species Account:

        Rostanga sp. 3 is considered to be very rare in Okinawan waters. I've never personally seen this attractive animal myself and the photographer, Jeffrey E. Heitchler, reports seeing only the above featured animal. It's currently known from four locals, Indonesia, Papua New Guinea, mainland Japan, and more recently from Okinawa.

There are two photographs of this currently undescribed opisthobranch in Gosliner, et al 2015, p.200, from Papua New Guinea. Also, Rie Nakano, 2018, has a photo of it on p. 263 of her latest book. In addition, Jim Black has an image of this attractive 'branch from Lembeh, Indonesia, seen on Mike Miller's Slug Site.

        Previously I've featured on these pages two additional unknown Rostanga species from Okinawan waters:

                Rostanga sp. 1
                Rostanga sp. 2

Literature Cited:

        I've added a second page w/ a series of images of the species.

Many thanx to Jeffrey for supplying the photos and associated information for this feature.

Page Date: 10 Sep '18
Page Modification Date: 10 Sep '18
Copyright © 2018 Robert F. Bolland