Aglajid ? from the Banda Sea
February 8, 2006
From: Nick Hobgood
Dear Bill,
We ran in to three individuals of this species where two larger ones were quickly moving towards each other while a much small third was motionless nearby. When the two met they quickly formed a ball and then parted and went in opposite directions (second photo). This all happenend in a matter of seconds. I cannot find these in any of my field guides, can you help ID them ?
Locality: East Timor, Banda Sea. Depth: 5 meters. Length: 1 cm. 05 February 2006. sandy bottom. Photographer: Nick Hobgood
Thanks
Nick
nick.hobgood@mac.com
Hobgood, N, 2006 (Feb 8) Aglajid ? from the Banda Sea. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15761Dear Nick,
These are acoel flatworms. Not as colourful as the usually large polyclad flatworms, but the acoels often occur in very large numbers. I don't know if it is just coincidence that they have a forked tail, which looks very similar to that of Chelidonura, a genus of opisthobranchs which feed on them.
Your animal is probably the same species as the one in Atsushi Ono's message [#974]. Like most flatworms they move much faster than most sea slugs.
Best wishes,
Bill Rudman
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