Red-Rimmed Melania (Melanoides tuberculatus) - A Snail in Biscayne National Park, Florida - Harmful Invader or Just a Nuisance?

http://pubs.usgs.gov/fs/2008/3006/

Explains how this potentially harmful invasive species arrived, why we are concerned, where in the area it is found, what environmental factors control its spread, and what might be done in response.

by Wingard, G. Lynn; Murray, James B.; Schill, W. Bane; and Phillips, Emily C.

U.S. Geological Survey Fact Sheet 2008-3006

This publication is available only as a PDF document.