Gymnodoris sp.

Image courtesy of Jayne Bruner
Milne Bay, Papua New Guinea.

Gymnodoris sp. undescribed

Members of the genus Gymnodoris are very difficult to identify. I am taking a guess here that this is Gymnodoris sp. 8 in Indo-Pacific Nudibranchs and Sea Slugs. That edition had 22 undescribed species of Gymnodoris. The new "Nudibranchs and Sea Slugs - Indo-Pacific" coming out this fall, will contain an incredible 59 undescribed Gymnodorids, in addition to the 30 species with names. In that book we have given this non-descript species the designation, Gymnodoris sp. 35.

The body is translucent light brownish white with numerous small pour-like clearings. There are minute opaque white spots on low tubercles. The viscera is clearly visible through the body wall.

Members of this genus can be separated by their gill morphology, either forming an arch or in the more classical dorid circle. The gill of this species forms a complete circle of gill branches.

A small species reaching only about 15 mm in length it is known from Papua New Guinea and the Philippines where it has been found in 7-10 m on shallow reefs under coral rubble.

Dave Behrens
Sammamish, WA 98074
Feb., 2015
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Jayne and husband Bob were YMCA certified in 1977 in the stone quarries of western Pennsylvania and northern Ohio. In the early '90s they experienced Indonesia and Papua New Guinea for the first time. Their first trip to PNG was on the maiden voyage of the Tiata with Kevin Baldwin.

Bob pursued film stills until 1999 and then switched to video. He "retired" in 2009 to "see more on the reef". Jayne was a non-photographer (land or sea) until 2008 when a fellow diver gave her a point & shoot to try. That launched a passion to capture the world of nudis that has yet to be satisfied. She currently is shooting with an Olympus OM-D E-M1 in a Nauticam housing with an Ikelite 161 strobe.

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