Good news. Not a Giant African Land Snail - its a beneficial snail, the Orthalicus
floridensis, the banded tree snail- response from the Helpline Supervisor from the Florida Department of Agriculture and Consumer Services.
This is an update on the Photo of the day / sighting from Sunday, 8/4/2014 - "is this the invasive Giant African Land Snail? Found Sun 8/3/14 on the edge of Palmetto Bay / Cutler Bay" (post immediately below.
The full e-mail posted below. Thank you for getting responding so quickly!
On Aug 4, 2014, at 10:41 AM, DPIHelpline <DPIHelpline@freshfromflorida.com
That is not the giant African land snail, it's the Orthalicus
floridensis, the banded tree snail. It is the largest native land snail
and is beneficial by cleaning trees. It can get up to around 2.5
Here is a link to our website that has a snail ID sheet, which you may find helpful: http://www.freshfromflorida.com/content/download/23825/485859/snail-id-sheet.pdf
Thank you for your concern and willingness to help FDACS with our
efforts to locate and control the giant African land snail. If you see
any other suspect looking snails, please feel free to send in more
photos or contact our helpline at 1-888-397-1517.
Kathryn C. Shepard
Public Information Specialist II / Helpline Supervisor
Division of Plant Industry
Florida Department of Agriculture and Consumer Services
PO Box 147100
Gainesville, FL 32614-7100