C. striatus

C. striatus may refer to:
 * Conus striatus, the striated cone, a sea snail species
 * Cyathus striatus, the fluted bird's nest, a common saprobic fungus species with a widespread distribution throughout temperate regions of the world
 * Cytisus striatus, the Portuguese broom, a flowering plant species native to the Iberian Peninsula
 * Cordaticaris striatus, a species of radiodont, a type of stem-group arthropod, from the middle Cambrian of China