D Anderson 1956 Ambystoma macrodactylum -9 cp. 6700 ft June 26 Big Meadows, along Elletts Pass Road, Calaveras Co., Calif. Collected large series of small larvae in pond at side of road (South side). Pond probably temporary. Surrounded by pine trees. 50 yds long by 20-25 yds wide. No vegetation on bottom. Bottom litter mostly pine needles. Water reddish in color but quite clear (probably highly acid.) All larvae taken at between 6"-12" depth. Few R. Hyla tadpoles present. Only 1 age class of larvae present. Apparently no stream enters pond - must lie melt off from snow. 1 Thomophin taken at this pond had 2 Ambystoma larvae (some size as those collected) in stomach. Greatest concentration of larvae near broken logs - near shore line. Few larvae away from shore. None seen floating - all larvae remained close to bottom. Made netting difficult. No adults found in vicinity. June 27. Grass Lake near Fitch Pass, El Dorado Co., Calif. 3 tiny (newly hatched) larvae taken at fringes of very large shallow pond. Strong flow of water thru middle of pond but margin quiet. Pine needles & cone littered the bottom. Very difficult to find; stayed close to bottom. Many Hyla larvae & some R. muscosa larvae in water. Aug. 7 Big Meadows, along Elletts Pass Rd., Calaveras Co., Calif. about 50 newly transformed salamanders taken under logs & pieces of wood bark. All were in depression formed by newly dried up pond. Only water restricted to puddle 4' across & 2" deep. No Ambystoma in water. Large number found under small piece of wood in particularly damp spots. 19 under one piece 8" long & 4" wide, in shade of a large log. Temp of mud 17 °C. 13 found under another of approx. same size & position, temp of mud C.