References

Cummings, K.S.,  J.M. Grady, and B.M. Burr. 1984. The life history of the mud darter, Etheostoma asprigene, in Lake Creek, Illinois. State of Illinois Department of Energy and Natural Resources: Natural History Survey Division, Champaign, Illinois, USA.

Encyclopedia of Life 2013. <URL: http://eol.org/pages/23815/overview> . Accessed April 10, 2013.

Froese, R. and N. Bially. Fishbase.org <URL: http://www.fishbase.org/summary/Etheostoma-asprigene.html>. Accessed April 3, 2013.

Hickman, Jr., Cleveland P., Larry S. Roberts, Susan L. Keen, Allan Larson & David J. Eisenhour. 2009. Animal diversity. McGraw-Hill, New York, NY, USA.

Holt, J. R., and C. A. Iudica. 2012. Systematic Biology: The Diversity of Life. <URL: http://comenius.susqu.edu/biol/202/taxa.htm>. Accessed April 3, 2013.

Lang, N.J., and R. Mayden. 2007. Systematics of the subgenus Oligocephalus (Teleostei: Percidae: Etheostoma) with complete subgeneric sampling of the genus Etheostoma. Molecular Phylogenetics and Evolution 43: 605-615.

Miller, R. R. 1972.Threatened Freshwater Fishes of the United States. Transactions of the American Fisheries Society 101: 239-252.

NatureServe. 2013. NatureServe Explorer: An online encyclopedia of life [web application]. Version 7.1. NatureServe, Arlington, Virginia. Available <URL: http://www.natureserve.org/explorer.>. Accessed April 3, 2013.

Ultsch, G. R., H. Boschung, and M. J. Ross. 1978. Metabolism, critical oxygen tension, and habitat selection in darters (Etheostoma). Ecology 59:99-107.


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