January 19, 2007
From: Bruce Potter
I recently dived under the Busselton Jetty in Western Australia, and on a night dive I found this very pretty nudibranch which I have not been able to identify in any of my books.
Locality: Busselton, 6 metres, Western Australia, Indian Ocean, 7 January 2007, under a jetty. Length: 25mm. Photographer: Bruce Potter.
It was about 25mm long.
firstname.lastname@example.orgPotter, B., 2007 (Jan 19) Spurilla australis from Western . [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19242
This is Spurilla australis. It appears to be solar powered with a pale form when it lacks zooxanthellae and a dark form like this when it has a population growing inside. It is often found on brown algae where it hunts down and eats small brown sea anemones.
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