OKINAWAN
OPISTHOBRANCH OF THE WEEK

Chromodoris sp. 3 (8mm)
Photo by Atsushi Ono

Opisthobranch of the Week Data

Taxonomy:

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


Species Account:

        This attractive little chromodorid was photographed by Atsushi Ono from the waters of Amuro Island in the Kerama Islands, 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 discovered by Atsushi during April of 2009, in 16m of water from the underside of dead coral. I've not personally seen Chromodoris sp. 3 in the waters of Okinawa's main island and Atsushi reports (pers. comm.) seeing only four individuals, but only one was collected. Atsushi considers the animal to be rare in the Kerama Islands.

Baba (1938) describes a similar animal (as Glossodoris katoi) from Izu. Japan. Here is Baba's description of the external characters of that animal:

"General body-colour translucent white, rhinophore-clavi and branchiae violet, mantle-margin edged with chrome yellow. Back with vermilion lines, following the direction of the mantle-margin, but in some places slightly ramifying and sometimes anastomosing. Underside without markings."

I've also added two images of Atsushi's single collected animal on a second page.

Literature Cited:


Page Date: 22 Nov'10
Page Modification Date: 22 Nov'10
Digitally manipulated photo
Copyright © 2010 Robert F. Bolland