September 25, 1999
From: Scott Johnson
As I said, they liked to eat Plakobranchus ocellatus, which is typically present all the time. These four pictures show a couple of different Gymnodoris individuals eating Plakobranchus; the predator's body often contracted while consuming its prey.
Johnson, S., 1999 (Sep 25) Feeding behaviour in Gymnodoris striata. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1369
Thanks for the photos. Can I assume from Johnson & Boucher (1983), that these Gymnodoris were about 50mm long? which would make the Plakobranchus about 20mm. I have posted some material on G. striata and 'G. amakusana', suggesting they may be colour forms of each other. There seems to be a bit of colour variability in the photos you have sent. If you have some photos showing a range in colour variability, they would be very welcome.
Gymnodoris striata from Thailand.
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Gymnodoris striata from the Solomon Ids
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Gymnodoris striata from Saudi Arabia
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Gymnodoris striata from Red Sea
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Observations on Gymnodoris striata
From: Scott Johnson, September 25, 1999