Notobryon ? from nthn Mariana Islands

April 17, 2008
From: Takao Urasawa

Concerning message #20102:

Dear Dr.Bill,
Here are three pictures which we think are of Crosslandia viridis.
This animal doesn't move at all.

Locality: LauLau Beach, 6 m, Saipan, Northern Mariana Islands, Pacific Ocean, 15 February 2008, on the dead coral. Length: 7 mm. Photographer: Takao Urasawa.

Best regards,

Takao Urasawa, 2008 (Apr 17) Notobryon ? from nthn Mariana Islands. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Ura,

Thanks for these photos. I am afraid the Scyllaeidae is in a confiused state at the moment and we will only be able to solve it when more material is available. I suspect your animal is a species of Notobryon but we would need to look at the radula to be sure.

I have included a small close-up to show the bushy secondary gills on the inside of the parapodia.

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Apr 17). Comment on Notobryon ? from nthn Mariana Islands by Takao Urasawa. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Notobryon wardi

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