New Zealand mudsnail sightings distribution : NAS--nonindigenous aquatic species.

Bibliographic Details
Corporate Authors: Nonindigenous Aquatic Species Program (U.S.), Geological Survey (U.S.)
Format: Government Document Map Database
Language:English
Published: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [2008-]
Subjects:
Online Access:https://purl.fdlp.gov/GPO/LPS99458
Description
Published:Began in 2008.
Item Description:Title from HTML home page last updated April 10, 2008 (viewed on Aug. 7, 2008).
Shows sightings from 1987 to present.
Includes location map.
Electronic resource.
Physical Description:1 electronic map : HTML file.
Publication Frequency:Updated daliy, 2008-
Format:Mode of access: Internet from the USGS web site. Address as of 8/7/08: http://nas.er.usgs.gov/taxgroup/mollusks/newzealandmudsnaildistribution.asp ; current access via PURL.