S. crenulata

S. crenulata may refer to:
 * Stenomelania crenulata, species of brackish and freshwater snail
 * Sebastiania crenulata, species of plant in the family Euphorbiaceae
 * Sannantha crenulata, species of flowering plant in the myrtle family
 * Scorpaenopsis crenulata, species of venomous marine ray-finned fish