Scenedesmus Meyen is well known planktonic genus of Chlorococcales. It is most ubiquitous in the fresh and brackish water bodies, particularly in eutrophic conditions and constitutes the major part of the phytoplankton and are therefore at the baseline of trophic structure. The present study is an attempt made at the different fresh water bodies of Churu region of Rajasthan to know the biodiversity and taxonomic accounts of Scenedesmus Meyen during Jan.,2013-Dec.,2014. During investigation, total 19 taxa of this genus have been reported and taxonomically identified.