Glossodoris stellatus in Papua New Guinea [2]

April 18, 2005
From: Mary Jane Adams

Here are 3 more photos to accompany Mary Jane Adams' message [#13505] about Glossodoris stellatus in Papua New Guinea. 

Upper Right: "I also saw many yellow egg coils on the underside of the host sponges. I never observed a slug laying these eggs, but another diver in my group did. The coils measured 20-24 mm across and as best as I can measure, the eggs are about 170 microns in diameter."

Lower Left: " The highest concentration of G. stellatus I saw was on Balaban's Bommie near the northwest corner of Normanby Island. On this divesite there was a dense cluster of these foliose sponges on a vertical wall. On 22 Oct. 2004, I found G. stellatus under about 15% of these leafy sponges at a depth of 10-15 meters. A few sponges had two slugs and one had four".

Lower Right: " In one photo [#13506 ] slide #43700a I noticed two rows of light brown spots on the mantle. Are these are poison glands?"

Locality: Milne Bay Province, Papua New Guinea, Pacific Ocean. Depth: 10-25 meters. Length: 50 -70 mm. Oct. 2004, Jan. 2005. Coral Reef. Photographer: M. J. Adams.

Best regards,
Mary Jane Adams

divepng@yahoo.com

M.J. Adams, 2005 (Apr 18) Glossodoris stellatus in Papua New Guinea [2]. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/13506

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