Sorry for the recent re-posting of the message below consequent to my
premature upload a few minutes ago.
For Indo-West Pacific marine snail immigrants, there is precedent for a
comparable itinerary: SW from the E Atlantic to the New World and thence
northward; see
<https://listserv.uga.edu/scripts/wa-UGA.exe?A2=ind0908D&L=CONCH-L&P=R2152&X=OA18543384ED61B837A&Y=hglee2%40mindspring.com>.
Of course there are myriad hypothetical scenarios, but ocean currents
and veliger vagility certainly are part of the calculus.
Harry
> On 3/9/2022 4:57 AM, steve rosenthal wrote:
>> Hello Paolo et al
>>
>> At the suggestion of one respondent, I have made a posting to
>> iNaturalist with photos of two specimens, including one that is almost
>> fully glossy. The collection locality is Playa Secreto (Secret Beach,
>> aka Secret Beach spot) in Isabella, NW Puerto Rico.
>>
>> On 3/9/22, Paolo G. Albano <[log in to unmask]> wrote:
>>> Hi Steve,
>>> Naria turdus was introduced into the Mediterranean Sea, with most
>>> specimens coming from the Gulf of Gabes in Tunisia.
>>> It is thus not entirely surprising that it is now found elsewhere
>>> outside its native range, although the location is unexpected and
>>> indeed
>>> points to shipping as a probable vector.
>>> I would be interested in more information on the current findings
>>> and in
>>> photos, if you can.
>>> Cheers, Paolo
>>>
>>>
>>> On 08-Mar-22 20:31, Steve Rosenthal wrote:
>>>> I'm currently in NW Puerto Rico with a couple of other shell
>>>> collectors,
>>>> and at one beach we've been finding reasonably fresh dead specimens of
>>>> what appears to be Cypraea (now Naria) turdus. They are certainly
>>>> not
>>>> the two local comparably-sized species (cinerea or acicularis,
>>>> which we've
>>>> also found dead specimens of to use as comparators; they are not
>>>> close in
>>>> shape, pattern or color, and especially noteworthy is the weight
>>>> per size
>>>> of the turdus). I'm less than completely surprised because on at
>>>> least
>>>> the last couple of auctions on Shellauction.net, a dealer/seller
>>>> in Aruba
>>>> ("ArubaShellClub") has been offering locally collected specimens of
>>>> "Naria
>>>> turdus gabrieli" with the following comment
>>>>
>>>> "A new introduced species, a really exquisite gem!, taken at night
>>>> under
>>>> rock by Aruba Shell Club Members and discoverers of this species new
>>>> locality, possible introduced as veliger larvae, in ballast water from
>>>> visiting oil tankers. Taken December 2021"
>>>>
>>>> It would be interesting to know where else in the Caribbean this shell
>>>> might be spreading. Aruba is pretty far from Puerto Rico!
>>>> Do any other collectors now of other records?
>>>>
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>>> --
>>>
>>>
>>>
>>> Dr. Paolo G. ALBANO, Ph.D. (he/him) Senior Scientist, Stazione
>>> Zoologica
>>> Anton Dohrn, National Institute of Marine Biology, Ecology and
>>> Biotechnology, Naples, Italy Research Associate, Department of
>>> Paleontology, University of Vienna, Austria E-mail: [log in to unmask];
>>> Skype: pg.albano Twitter: @pg_albano; Google Scholar
>>> <http://scholar.google.it/citations?user=DZ4zNfQAAAAJ>
>>>
>>> NEW Native biodiversity collapse in the Eastern Mediterranean
>>> <https://royalsocietypublishing.org/doi/10.1098/rspb.2020.2469> open
>>> access Full publication list including links to pdfs and journal
>>> webpages here
>>> <https://homepage.univie.ac.at/paolo.albano/publication_list.html>
>>> Lessepsian migration project: Historical ecology of Lessepsian
>>> migration
>>> <http://www.univie.ac.at/lessepsian/index.html> Personal web-site:
>>> http://homepage.univie.ac.at/paolo.albano/
>>>
>>> ----------------------------------------------------------------------
>>>
>
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