Overlooked for Decades (image) University of Illinois at Urbana-Champaign Caption The new species, Barbicambarus simmonsi (left) is more than twice the size of a typical crayfish found in Shoal Creek (which drains into the Tennessee River) -- and yet generations of aquatic biologists who frequented the area somehow missed it. Credit L. Brian Stauffer Usage Restrictions Photo may be used only with stories about the research described in the news release. Please credit: L. Brian Stauffer. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.