[Cnidaria] nematocyst envenomation

[Claudia Mills]

Hello Patrick,

Your interest is out of my area of expertise, but your message went  
out to the entire listserver,
so maybe someone else out there will provide you with an answer.

Claudia Mills


On Jun 23, 2008, at 6:18 AM, ottuso at comcast.net wrote:

> 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 t! entacle s 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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