Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https://
means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Pulmonate snails are the first intermediate host in the life cycle of Bolbophorus damnificus, an important digenetic trematode in Mississippi catfish aquaculture. Two species, the marsh ramshorn...
data.gov
An official website of the GSA's Technology Transformation Services