E.L. Karathan 1954 Bufo canorus (30) June 18 200 yards SE Tioga Pass Ranger Station, 9920 ft., Tuolumne Co., Coly. Lake drops off to 2 1/2' depth on W side. matted down grasses right to edge and shot through underneath with mice (micotus?) lemmings. Two juvenile frogs taken here, are immediately took cover beneath matted cover as I approached it. Mossy, soggy mat beneath meadow grasses along lake edge. Adult F seen right at edge of lake. 2:05 P.M. (DS.) In full sunlight but half submerged in water. Resting on surface of grass clumps. Choral temp. 23.5° C. Water temp. 3 1/4