Trailing behaviour in Hermissenda crassicornis

December 22, 2003
From: Marli Wakeling

Hi Bill,
I had meant to send this to you a while ago, and just came across it again. These two large specimens of Hermissenda crassicornis were found exhibiting trailing behaviour as I have seen in Indo-Pacific species. I watched them for quite some time, and they were moving a quite a clip (for a nudibranch!). I've never seen this behaviour with this species before.

Dive Site: Snowflake
Location: Port Hardy, British Columbia, Canada
Date: August, 2003
Depth: 40 feet
Size: 4 cm.

Cheers,
Marli Wakeling

scubamarli@excite.com

Wakeling, M., 2003 (Dec 22) Trailing behaviour in Hermissenda crassicornis. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11719

Thanks Marli,
There has been quite a bit of behavioural work done on this species so perhaps someone can let us know if this is a common occurrence. It's not usual for aeolids to follow mucus trails like this but I suppose a species with such a broad diet as Hermissenda crassicornis, including other nudibranchs, would find the ability to 'trail' a useful behaviour
Best wishes
Bill Rudman

Rudman, W.B., 2003 (Dec 22). Comment on Trailing behaviour in Hermissenda crassicornis by Marli Wakeling. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11719

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Hermissenda crassicornis

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