Annotated Checklist of the large branchiopod crustaceans of Idaho, Oregon and Washington, USA, with the “ rediscovery ” of a new species of Branchinecta (Anostraca: Branchinectidae) Author Rogers, D. Christopher Author Hill, Matthew A. text Zootaxa 2013 3694 3 249 261 journal article 10.11646/zootaxa.3694.3.5 2659f6ab-ff8f-42ec-be88-b1a683b7e8a3 1175-5326 215629 20516F66-54A7-436F-8092-D9E5C0ED4EC9 Eubranchipus serratus Forbes, 1876 New records. OREGON: Harney County: Roadside pools on highway 20 just west of Burns, 1 April 2007 , D. C. Rogers, DCR-685. Lake County: Roadside ditch, on west side of Highway 395, north of Lakeview, 27 March 1998 , D.C. Rogers, R. E. Hill, DCR-132. Numerous pools and playas between Summer Lake and Lake Abert, off Red House Road, 12 April 2000 , D.C. Rogers, C. L. Rogers. Wasco Co.: The Dalles, vernal pool on Chenoweth Plateau, Columbia River Gorge National Scenic Area, 45˚ 37’ 21.37”N, 121˚ 14’ 11.25’W, 237m elevation, 1 April 2009 , S. Wille, det. D. C. Rogers. Comments . This species needs to be examined across its range, as there appears to be great morphological plasticity. It ranges from Alberta and Saskatchewan ( Canada ), south to Oklahoma, and Arizona, west to Washington and California ( USA ).