The last paper cited in the WoRMS entry (at the bottom) appears worthy
of investigation for anybody curious; the 'edit history' in WoRMS for
the entry (under the new name) in WoRMS seems roughly contemparaneous
with the date of the publication:

source of synonymy Dornellas, A. P.; Graboski, R. M.; Hellberg, M. E.;
Lotufo, T. M. C. (2021). Phylogeography of Agathistoma (Turbinidae,
Tegulinae) snails in tropical and southwestern Atlantic. Zoologica
Scripta. DOI: 10.1111/zsc.12517., available online at
https://doi.org/10.1111/zsc.12517 [details]  Available for editors
PDF available [request]



On 10/12/22, Allen Aigen
<[log in to unmask]> wrote:
>  I suspect Ed Petuch changed it but if so, it is post 1994.
>     On Wednesday, October 12, 2022 at 05:31:19 PM EDT,
> [log in to unmask]
> <[log in to unmask]> wrote:
>
>
> OK, another one.  Who can give us background of when Tegula fasciata (Born,
> 1778) became Agathistoma fasciatum (Born, 1778)?
>
>
>
> Marlo
>
>
> [log in to unmask]
> - a forum for informal discussions on molluscsTo leave this list, click on
> the following web
> link:http://listserv.uga.edu/scripts/wa-UGA.exe?SUBED1=conch-l-L&A=1Type
> your email address and name in the appropriate box andclick leave the
> list.----------------------------------------------------------------------
>
>
> ----------------------------------------------------------------------
> [log in to unmask] - a forum for informal discussions on molluscs
> To leave this list, click on the following web link:
> http://listserv.uga.edu/scripts/wa-UGA.exe?SUBED1=conch-l-L&A=1
> Type your email address and name in the appropriate box and
> click leave the list.
> ----------------------------------------------------------------------

----------------------------------------------------------------------
[log in to unmask] - a forum for informal discussions on molluscs
To leave this list, click on the following web link:
http://listserv.uga.edu/scripts/wa-UGA.exe?SUBED1=conch-l-L&A=1
Type your email address and name in the appropriate box and
click leave the list.
----------------------------------------------------------------------