Common name: Crab-eating water snake
available through www.itis.gov
Native Range: Fordonia leucobalia is found from India's Nicobar Islands and along the mainland coast from Bangladesh and Myanmar eastwards throughout Southeast Asia to the Philippines, and southwards to Papua New Guinea and Northern Australia (Murphy, Read and Guinea, 2010).
Hydrologic Unit Codes (HUCs) Explained
Puerto Rico &
Interactive maps: Point Distribution Maps
Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Fordonia leucobalia are found here.
Table last updated 9/30/2019
† Populations may not be currently present.
Means of Introduction: Unknown.
Impact of Introduction: The impacts of this species are currently unknown, as no studies have been done to determine how it has affected ecosystems in the invaded range. The absence of data does not equate to lack of effects. It does, however, mean that research is required to evaluate effects before conclusions can be made.
References: (click for full references)
Murphy, J., M. Read, and M. Guinea. 2010. Fordonia leucobalia
. The IUCN Red List of Threatened Species. Version 2015.2. http://www.iucnredlist.org. Downloaded 23 July 2015.
Revision Date: 8/18/2015
Powell, R.S., 2019, Fordonia leucobalia (Schlegel, 1837): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=2646, Revision Date: 8/18/2015, Access Date: 10/13/2019
This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.