Subject: question about topotype
> A question,
> I have a shell identified as Lampsilis radiata Gmelin, 1792 and apparently
> with synonym of Unio rosaceus DeKay, 1843.
>
> The text on the label reads "Topotype of DeKay's species, 'Seneca Lake,
> N.Y.'"
>
> Just what do they mean by a Topotype?
>
> Thanks,
> Wayne
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