Many scientific researches have been done on different faunal assemblages in relation to the environmental condition from thermal sources located on the eastern Aegean Sea coast. Aliaga (Izmir) region has also thermal resources. These two thermal springs are closely located on the coast of Ilica Cape, northwest of Aliaga (Izmir) and northwest of Karaagac Cove. Their temperatures are 40 degrees C and 51 degrees C, respectively. The bottom deposits consist of rock fragments, gravel, sand, silt and clay units in the study area.