I have seen 286mm but did not record the source. Possibly one of the 
"old" WRS publications.

John

At 10:25 AM 8/29/16, you wrote:
>On WRS database:
>
>Busycon carica carica...
>
>old: 281 by M Detimmerman in 1989
>  - assumed due to no photo, this was replaced with:
>new: 234.81 by Havelet Marine
>
>
>
>-----Original Message-----
> >From: Steve Rosenthal <[log in to unmask]>
> >Sent: Aug 29, 2016 9:01 AM
> >To: [log in to unmask]
> >Subject: [CONCH-L] Busycon carica sizes (again)
> >
> >About a year ago there was a discussion of B. carica in a conch-l 
> thread, and the size of some large fossil shells was cited up to 
> 244mm, and it was noted Malacolog database gave the current maximum 
> size at 249mm.
> >
> >I wonder if anybody could please check and report out on the 
> current size in the official (subscriber) registry database, or in 
> the similar past registry databases in print.
> >
> >Equally useful would be if anybody has records or knows of 
> specimens in the size range of 249mm and up, all the books and 
> online references I have stop at 9 inches, Malacolog cites 249mm (a 
> little under 10 inches), and the current online Wikipedia article 
> states up to 12 inches (305mm) but I did not  find that in the 
> references cited on the Wikipedia page itself.  (although one of 
> the four links in the refs. did not work)
> >
> >Thanks in advance for any data.
> >
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