[Cnidaria] Antarctic Pandaeid?

[ottuso at comcast.net]

Hi Claudia. I am a dermatologist in Vero Beach Fla. with an interest in marine dermatology/envenomations. I was wondering if you could direct me to a reference regarding identification of nematocyst speciation. I am not a marine biologist but do lecture to other physicians re. aquatic dermatology. I am also writing an article for a dermatology publication re. indirect nematocyst envenomation through nudibranchs and would appreciate any photo you may have of such--it would be used in the publication with a reference/credit to you. Thanks for your time.--Patrick Ottuso, M.D.

-------------- Original message -------------- 
From: Claudia Mills <cemills at u.washington.edu> 

> Hi Rob, 
> 
> It does seem to be a Leuckartiara or a Neoturris. I've found a number 
> of Pandeids on cruises that don't correspond well to described 
> species. You didn't give a size, but I am assuming 20-35 mm tall. It's 
> not a Zanclonia, which would have distinctive tentacles with a series 
> of adaxial nematocyst filaments, which you would have noticed. Check 
> the gonads to place in Leuckartiara (folds only) or Neoturris (folds 
> and pits) -- both genera have mesenteries between gonads and radial 
> canals, which yours has. You should check Larson's Southern Ocean 
> monograph. 
> 
> Larson and Harbison described (1990) Leuckartiara brownei from McMurdo 
> Sound, with 4 large perradial tentacles and 28 small ones between - it 
> isn't that. Neoturris pileata has a north Atlantic and Med 
> distribution - my biogeographic sense says that it is very unlikely to 
> be near Antarctica. N. breviconis (which G. Mackie has been looking at 
> up close in the last several weeks has lots of tentacles, but no 
> evidence of those exaggerated diverticulae off the radial canals and 
> no southern Ocean references at all. 
> 
> In my new Light's manual key, I divide things related to this as with 
> more, or less than 60 tentacles. There are very few choices with more 
> (L. breviconis and some huge (8 cm tall) colorless pandeid from 
> offshore surface California waters). 
> 
> There might be some "new" Antarctic or Southern Ocean things described 
> that I missed in my hour of intermittent Friday night Google Scholar 
> explorations from home. 
> 
> Claudia 
> _______________________________________________ 
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