Re: Chromodoris lochi from Indonesia

August 8, 2007
From: Ken Tucker


Concerning message #20402:

Yes, since you are interested, I have a sequence of 10 photos showing the two together, and their brief encounter. C. lochi moves across the field, eventually bumping into Phyllodesmium crypticum [first photo]. C. lochi "abruptly" changes direction, and continues on around. The second photo is perhaps a better photo if P. crypticum.

Locality: North Sulawesi, Lembeh Strait, 10 metres, Indonesia, Celebes Sea, 5 Nov 2005. Length: 2+ cm. Photographer: Ken Tucker.

Ken Tucker

ken@kilili.com

Tucker, K.C., 2007 (Aug 8) Re: Chromodoris lochi from Indonesia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20415

Thanks Ken,

Species of Phyllodesmium lack the cnidosac filled with stinging nematocysts at the tip of each ceras, which is the first line of defence for most aeolids, and instead have a large gland at the ceratal tip producing secretions apparently to deter potential predators. Perhaps that is what caused the avoidance action in your Chromodoris.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Aug 8). Comment on Re: Chromodoris lochi from Indonesia by Ken Tucker. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20415

Factsheet

Phyllodesmium crypticum

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