R. Zweifel 287 Rana boylii muscosa July 30, 1951 (2) Temperature Records BT ROCK AIR 22.6°C 21.6°C 22.0°C 25.5°C 21.0°C — 19.0°C — — 18.0°C — — All records were from frogs running on rocks about 18" to 2' above the water, and were taken within 10 minutes of one another. The water temperature was 14.6°C. When captured, most of the frogs exhibited a behavior which I have noticed before in muscosa, but don't recall for boylii. The eyes are withdrawn, the head depressed and flat flattened, and the front feet placed over the ears, as if to hide the head. Sometimes when in this position, the frog will remain quite motionless, even when released.