more regarding sizes of ribbed mussels....
All the specimens I have seen from the west coast of FL (Sanibel area)
were quite small.
I have local (New York) specimens of G. demissa that are just over
126mm, from a local salt marsh on the south shore of Long Island
where they grow quite large.
Les Crnkovic took me to an area in Galveston TX for large granosissima
about two years ago, we got a few as big as 127.3mm that day; Les may
have larger specimens from prior years there.
On 8/5/15, Jim Brunner <[log in to unmask]> wrote:
> Marlo, Harry, et alia,
>
> G. granosissima gets quite large in NW Florida. Three specimens on hand
> from brackish waters in North Bay (St Andrews Bay complex) P.C., Florida
> measure 88.5, 83.8, 73.8mm. I believe when I collected them some 15 years
> ago that I saw some larger but rejected them because of the erosion on the
> jumbo area.
>
> Jim Brunner
>> On Jul 30, 2015, at 2:03 PM, marlo krisberg
>> <[log in to unmask]> wrote:
>>
>> See discussion and photos:
>>
>> http://z14.invisionfree.com/Conchologist_Forum/index.php?showtopic=1825
>> <http://z14.invisionfree.com/Conchologist_Forum/index.php?showtopic=1825>
>>
>>
>> On Thursday, July 30, 2015 11:19 AM, Derrick Hudson
>> <[log in to unmask]> wrote:
>>
>>
>> Hello,
>>
>> I know this is a very old string, but I'm new to CONCH-L and am
>> catching up. The paper
>> Genetics and taxonomy of ribbed mussels (Geukensia spp.), By Sarver et al.
>> 1992 addresses this question fully. As for my experience I believe that
>> G.demissa is the East coast species that spans from Rhode Isaland to South
>> Florida and that G.granosissma is the Gulf of Mexico species. I personally
>> have not found any G.demissa North of the Keys.
>>
>> Derrick
>>
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