Re: Trailing Dorids

March 2, 2006
From: Jan Kocian


I just finished looking at photos from a dive two days ago, I found two pairs of Acanthodoris nanaimoensis trailing in two separate parts of the jetty. They were not going anywhere fast, the first pair was very close to the spot I found them thirty five minutes ago at the beginning of my dive. The "nose" of the trailing slug beneath the rear end of the leader.

Locality: Jetty, Washington USA, Puget Sound, NE Pacific Ocean, 24 February 2006, rocky. Length: 20 mm. Photographer: Jan Kocian.

Jan

honkoc@hotmail.com

Kocian J., 2006 (Mar 2) Re: Trailing Dorids. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15967

Dear Jan,

As usual your cartoon has made my day.  Thanks.

Well I have to admit this sure looks like trailing to me, however we usually see the follower with its head above the posterior mantle of the leader, not underneath as in your photos.  Maybe this is a new version of this interesting behavior.  One thing for sure, this adds to our list of species that apparently trail.  This is a first for an Acanthodoris.

Best wishes,
Dave Behrens

Behrens, D.W., 2006 (Mar 2). Comment on Re: Trailing Dorids by Jan Kocian. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15967

Factsheet

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