Schofield, P.J., Williams, J.D., Nico, L.G., Fuller, P., and Thomas, M.R., 2005, Foreign Nonindigenous Carps and Minnows (Cyprinidae) in the United State - A Guide to their Identification, Distribution, and Biology: U.S. Geological Survey Scientific Investigations Report 2005-5041, 103 p.

This guide contains  an identification key to the eleven foreign nonindigenous cyprinids, as well as species accounts that include physical characteristics, reproduction, ecology, and distribution in its native habitat and in the United States. Biologists, resource managers and others interested in nonindigenous fishes will find it a useful tool for identifying foreign cyprinids, some of which superficially resemble their native North American counterparts. Currently available online (Click Here), and in Acrobat PDF format: 20 megabyte file. Get Acrobat Reader.