R. gracilis may refer to: Reithrodontomys gracilis, the slender harvest mouse, a rodent species Rhacheosaurus gracilis, an extinct marine crocodyliform species from the Late Jurassic of Germany Rhapis gracilis, the slender bamboo palm, a multi-stemmed palm tree species native to southern China Rhogeessa gracilis, the slender yellow bat, a vesper bat species found only in Mexico Rhombonotus gracilis, a jumping spider species known from Queensland, Australia
Synonym Rana gracilis, a synonym for Fejervarya pulla, a frog species
See also Gracilis (disambiguation)