March 2, 2003
From: Dave Behrens
Have wanted to correct the range on Halgerda okinawa but didn't have photo documentation to back up the claim. H. okinawa is a casual occurrence in the Lembeh Straits of Indonesia in addition to the type locality in Okinawa. The attached photographs are by Carine Schrurs and Constantinos Petrinos. Con reports - During a dive at a dive site called NUDI RETREAT we located several Halgerda okinawa within an area of 10 meters at a depth of 42.5 meters.
email@example.comBehrens, D., 2003 (Mar 2) Halgerda okinawa from Lembeh Straits. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/9322
These animals certainly match the colour of the Okinawan specimens except for the absence of the black lines on the ridges. The broken black rings near the mantle edge, which are so well developed in this Indonesian animal, seem to definitely link it to the Okinawan animals, one of which shows markings which could easily be derived from these rings. This is an interesting find.
Halgerda okinawa from Lembeh
From: Zeineb Alhaidari, October 29, 2009
Halgerda okinawa from Indonesia
From: Stéphane Sandon, June 13, 2006
Halgerda okinawa from East Timor
From: Brian Francisco, March 10, 2006
Halgerda okinawa from the Philippines
From: Erwin Koehler, May 23, 2005
Halgerda okinawa mating from Indonesia
From: Francis et Pirjo Pellet, January 7, 2004
From: Bill Rudman., June 11, 2000