Is there an orientation that should be measured, or just the greatest diameter?

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  On Mon, Sep 27, 2021 at 6:23 PM, Alain ALLARY<[log in to unmask]> wrote:   
hi Steve,the registeted wrs is now 37,6 mm (2015)in the last wrs book i have

regards

Alain


envoyé : 25 septembre 2021 à 19:09
de : Steve Rosenthal <[log in to unmask]>
à : [log in to unmask]
objet : [CONCH-L] another WRS query


Can anybody share any WRS data available for our local cup-and-saucer shell, Crucibulum striatum (Say)? Nothing is listed for this species in the older (1980s) hard copy WRS lists that I have; the largest sizes I can find referenced are 34mm (Malacolog online database) and 35mm (Rehder's Smithsonian Field Guide to North American Seashells). The 35mm size is also listed as the upper size limit on gastropods.com. 

Thanks

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