OKINAWAN
OPISTHOBRANCH OF THE WEEK

Goniodoridella savignyi (Pruvot-Fol, 1933) 10mm

Opisthobranch of the Week Data

Taxonomy:

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


Species Account:

        Goniodoridella savignyi is considered to be rare on Okinawa as I have seen and collected a total of 10 individuals from 5 separate dives (the 19 Feb 93 collection is composed of 5 individuals, but only 1 was measured {7mm}; the 22 Mar 97 collection is made up of 2 individuals {8mm & 11mm}) over a period of more than twenty years of diving in Okinawan waters. The only other Okinawan member of the genus featured on these pages is a currently undescribed animal from the Keramas*.

        The 8 animals from the Tengan Pier area were collected from perhaps the same identical physical site, i.e., from a discarded metal superstructure composed of angle iron, covered with dense growths of small feathery hydroid colonies. The two specimens from Horseshoe were collected from a vertical rock wall covered with red algae and miscellaneous poriferans, bryozoans, and cnidarians.

        * Keramas = the Kerama Islands Group, located 30 ~ 40 kilometers west of the Okinawa capitol, Naha.


Page Date: 23 Apr '99
Page Modification Date: 01 Oct '15
Digitally manipulated photo
Copyright © 2015 Robert F. Bolland