No joyful 286 Rana sylvatica muscosa July 30, 1951 Snow Valley, Palomar Mtn. State Park, San Diego County, Calif. Eleven frogs were collected between 10:00 am and 10:30 am from the creek in the forest section from where it enters the valley proper. The creek is deeply shaded by white alder, white fir and incense cedar. Herbaceous vegetation is very thick and contained - among other unidentified plants - bracken, nettle, thimble berry, wormwood, currant, columbine and some very aromatic mint. The prominent rock of the region is granite, and very dark gray in color. There are many boulders on the stream course, averaging 2 to 3 feet in diameter. The stream bed and bank are silty, rather than the gravelly condition more commonly associated with muscosa. When frightened the frogs burrowed into the silt on the bottoms of the pools. The deepest pools were only about one foot in depth. Frogs were seen on rocks and on the stream edge, taking advantage of any sunlight which reached the stream.