Marionia ? from the Philippines

July 3, 2001
From: Erwin Koehler

Dear Bill,
here is the next one from the Philippines, Cebu Island, Moalboal, divesite "Dolphin House", depth 12 m, length 65 mm, June 01, 2001.

Koehler, E., 2001 (Jul 3) Marionia ? from the Philippines. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Erwin,
This is the one I have previously called Tritoniid sp. 3. I think Odhner would have put it in a genus Marionopsis rather than Marionia but the first task is to sort out the species names of these tropical tritoniids. It seems to be crawling over a colony of the soft coral Pachyclavularia violacea which is the food of the aeolid Phyllodesmium briareum [see Rie Nakano's photo]. Did you by chance see any sign of it feeding on this soft coral or was it just passing by?
Best wishes,
Bill Rudman

Rudman, W.,B., 2001 (Jul 3). Comment on Marionia ? from the Philippines by Erwin Koehler. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Tritoniid sp. 3

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