U.S. Geological Survey, Biological Resources Division, Patuxent Wildlife Research Center
NODC Taxonomic Code, database (version 8.0)
McDiarmid, Roy W., Jonathan A. Campbell, and T'Shaka A. Touré
Journal/Book Name, Vol. No.:
Snake Species of the World: A Taxonomic and Geographic Reference, vol. 1
xi + 511
The Herpetologists' League
Washington, D.C., USA
Used by some to refer to "lizards" (broadly), but ITIS is following a somewhat different classification
ITIS taxonomy is based on the latest scientific consensus available,
and is provided as a general reference source for interested parties.
However, it is not a legal authority for statutory or regulatory purposes.
While every effort has been made to provide the most reliable and up-to-date
information available, ultimate legal requirements with respect to species
are contained in provisions of treaties to which the United States is a
party, wildlife statutes, regulations, and any applicable notices that have
been published in the Federal Register. For further information on U.S.
legal requirements with respect to protected taxa, please contact the
U.S. Fish and Wildlife Service.