The fringed darter, Etheostoma crossopterum, also has been a research subject since 1997 when it was discovered in Illinois (Poly and Wilson, 1998; Poly, 2000, 2003), and additional studies are underway presently. Above is a picture of a nuptial male.
Eggs of a fringed darter, Etheostoma crossopterum, from Illinois (Spring 2001, photo by W.J. Poly).
William J. Poly
Research Associate
Department of Ichthyology
California Academy of Sciences
wpoly@calacademy.org
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