Dendrodoris carbunculosa with commensal shrimps

August 5, 2005
From: Barbara Hanchard

Dear Bill,

Today at 11.26am to be precise I found this Asteronotus cespitosus. I have seen several references to this droid being nocturnal. What would be the reason for it being observed in daylight hours? It had several shrimp piggy backing and I couldn't see any evidence of egg laying active.

Locality:  Leilei, Honiara, Solomon Islands, Pacific Ocean. Depth: 12 meters
Length: 150 mm. 16 July 2005. sandy slope, some coral. Photographer: N. Barbara Hanchard

Regards
Barbara Hanchard

barbara.hanchard@ffa.int

Hanchard, N.B., 2005 (Aug 5) Dendrodoris carbunculosa with commensal shrimps. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14275

Dear Barbara,
This is certainly as ugly as a large Asteronotus but it is Dendrodoris carbunculosa - an ugly dorid with an ugly name. I suspect the commensal shrimps are Periclimenes imperator - but I could be wrong. It used to be thought that it was a specialised commensal of Hexabranchus, but it seems to be found on many large opisthobranchs.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Aug 5). Comment on Dendrodoris carbunculosa with commensal shrimps by Barbara Hanchard. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14275

Factsheet

Dendrodoris carbunculosa

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