One valve I have is 38.5 mm, so probably that valve is worth giving to the Bailey Matthews National Shell Museum for their largest-size exhibit. Although I can’t really imagine anyone but me finding it impressive.

Thanks to everyone who answered my question.

Susan

> On Apr 11, 2021, at 3:04 PM, steve rosenthal <[log in to unmask]> wrote:
> 
> On his treatment in Lets Talk Seashells Marlo Krisberg says "to 25mm"
> 
> On the Sanibel Museum website SW FL Shell Guide   Jose Leal says "to 30mm"
> 
> On 4/11/21, Harry Lee <[log in to unmask]> wrote:
>> Forgot to mention the fact that this MollscaBase contribution occurred a
>> month after his first volume was published (August, September, 2010).
>> 
>> Harry
>> 
>> 
>> On 4/11/2021 2:50 PM, Harry Lee wrote:
>>> My customary reaction to an inquiry on the max size of a somewhat
>>> obscure bivalve species is to look at Huber (2010, 2015) since he
>>> provided the greatest dimension of all species he illustrated, and
>>> often his datum exceeds that in less authoritative works.
>>> 
>>> This time, however, I was shocked to find that it seems he did not
>>> treat the species at all despite the fact that he edited the treatment
>>> on the taxon in MollscaBase
>>> <http://molluscabase.org/aphia.php?p=taxdetails&id=420729>. This may
>>> be the first time he's disappointed me!
>>> 
>>> Harry
>>> 
>>> 
>>> On 4/11/2021 1:51 PM, John Wolff wrote:
>>>> I have it as 37.2 - but as usual, I can't give you the source since
>>>> It's in my database just for personal use.
>>>> 
>>>> John
>>>> 
>>>> On 4/11/21 1:08 PM, Susan J. Hewitt wrote:
>>>>> Can anyone give me the current WRS for Glycymeris spectralis? Thanks.
>> 
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