Phaneropthalmus sp. 1 (ca.20mm)
Photo by Shawn Miller

Opisthobranch of the Week Data


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

Species Account:

        Phaneropthalmus sp. 1 is considered to be rare in the waters of Okinawa's main island; I've not personally found this animal, however the above illustrated individual was photographed by Shawn Miller and three additional animals were photographed by Randy Birt. I've added a second page with images of the three Okinawa-photographed animals by Randy. All four of the animals were found on night dives from several Okinawa sites.

        Nishina Masayoshi (2002) has an image of a similar animal from Japan (Hachijo Island) posted on the Sea Slug Forum. Gosliner, et al (2008, p. 29) also show a very similar animal.

        The following information is taken from Gosliner, et al (2008):

Identification: This species has predominately white pigment on the mantle with scattered darker spots.
Natural History: Found under coral rubble in shallow water under coral rubble.
Distribution: This small species has been found from Madagascar, the Philippines, Guam, and Japan.

Literature Cited:

Page Date: 13 Aug '12
Page Modification Date: 13 Aug '12
Digitally manipulated photo
Copyright © 2012 Robert F. Bolland