RESEARCH NOTE Sean M. O’Brien* and Brent Helm Westervelt Ecological Services, 3636 American River Drive, Sacrament, CA 95864, USA https://orcid.org/0000- 0002-5161-7049 (SMO) *Corresponding Author: seanobrien1342@gmail.com Published 23 March 2025 • doi.org/10.51492/cfwj.111.1 Key words: largebranchiopod, Lepidurus packardi, playa, San Joaquin, tadpole shrimp, Tulare Basin, vernal pool Citation: O’Brien, S. M., and B. Helm. 2025. First record of … Continue reading First record of Lepidurus lemmoni (Holmes 1894) (Crustacea: Notostraca) in California’s Central Valley