ELI Kolston 1955 Bufo conexus Feb. 9 Letter dated today this date received from Robert L. Wierzej, Sacramento State College. Vial #56 (tadpoles) 3/4 mi. W of Carnegie Institution's cabin in Hawey Hall Natural Area, at east base of Mt. Conexus, 10,000 feet, Mono Co., Calif. July 30, 1952.-In a pond roughly 150 yards in irregular diameter, with much short emergent grass. Water range .65° F in shallow edges 1-2" and 64° F in over 6" deep. Elbetta Pass specimens: 2.4 miles (dry road) S of State Hwy. 4, 7800 feet, Alpine Co., Calif.-Small artificial pond 6'x15' not over 12" deep, supplied by seepage from east slope of Weyer Desert Valley. Pond in a small wet meadow grazed by cattle. Many of the larvae taken from shallow (2-3") seepage streams above pond; also sometimes in brook points. Short grass & sedge in meadow and stream. (same locality as 1952 collection). * Above Elbetta Pass is a range extension of = 16 air-line miles from Sierra Pass locality. Wierzej will publish Herpetologia 1955.