Eurythermic: (of an organism) able to tolerate a wide range of temperatures. Stenothermic: <span>A </span>stenothermic<span> is a species or living organism only capable of living or surviving within a narrow temperature range. </span> Euryhaline<span>: (of an aquatic organism) able to tolerate a wide range of salinity. </span>Stenohaline: <span>(of an aquatic organism) able to tolerate only a narrow range of salinity.