Ceratosoma trilobatum with commensal shrimp
September 21, 2001
From: Mary Jane Adams
Hi Bill,
Here is another example of commensalism. The shrimp was riding around on the slug like a queen on a royal coach. This Ceratosoma trilobatum with Periclimenes imperator was photographed in Lembeh Straits, Sulawesi, Indonesia, Aug. 13, 2001. Length: about 8 cm, Depth: 5 meters
Best regards,
Mary Jane
divepng@yahoo.com
Adams, M.J., 2001 (Sep 21) Ceratosoma trilobatum with commensal shrimp. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5285Thanks Mary Jane,
Periclimenes certainly does look very obvious when it sitting out on its 'host's' back. Whether its own eyesight is good enough to detect danger or whether the defensive glands of the nudibranch are sufficient protection I wouldn't know. It is certainly a relationship which would be worth a look at.
Best wishes,
Bill Rudman
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