OKINAWAN
OPISTHOBRANCH OF THE WEEK

Glossodoris symmetricus Rudman, 1990 (42mm)

Opisthobranch of the Week Data

Taxonomy:

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


Species Account:

        Glossodoris symmetricus is a rare animal here on Okinawa; only two specimens have been seen and collected as of this date (14 December, 1998). This beautiful animal was described by Rudman (1990) and the designated holotype is from Reunion Island in the Indian Ocean.

        The mantle of Glossodoris symmetricus is translucent white with a broad irregular opaque white line at the mid-dorsum and the edge of the mantle bears a narrow red line. The irregular opaque white mid-dorsal line is quite similar to the pattern seen in G. pallida. Certainly the animal which most closely resembles G. symmetricus on Okinawa is G. averni, but its red marginal line is much broader and it lacks the mid-dorsal white patch of G. symmetricus.

Literature Cited:


Page Date: 14 Dec '98
Page Modification Date: 16 Feb '04
Digitally manipulated photo
Copyright © 2004 Robert F. Bolland