1925] Storer: A Synopsis of the Amphibia of California 219 
In California, Hyla regilla ranges more widely than any other 
amphibian,- the deserts in the southeastern portion of the State being 
the only general areas where it does not occur. It is found at sea 
level in many places along the coast and it ranges up in the Sierra 
Nevada to, or above, timber line. Some stations of high altitude are 
the following: Warner Creek at 8000 feet on Lassen Peak, Shasta 
County (Mus. Yert. Zool.), Mount Conness at 11,600 feet, Yosemite 
National Park (Grinnell and Storer, 1924, p. 661), south fork of 
Merced River at 8900 feet (Stejneger, 1893, p. 224), Whitney 
Meadows, 9800 feet, and Whitney Creek, 10,000 feet or over 
(Stejneger, 1893, p. 223). It is found locally in several of the moun- 
tain ranges east of the Sierra Nevada, as in the Panamint and Charles- 
ton ranges at altitudes of from 2600 to 6000 feet (Stejneger, loc. cit.). 
The easternmost stations of occurrence in southern California are 
as follows: Johnson Canon, Panamint Mountains (Stejneger, 1893, 
p. 223) ; Shoshone, Inyo County (Mus. Yert. Zool.) ; Resting Spring, 
Mohave Desert (Merriam in Stejneger, 1893, p. 222) ; Kern Yalley 
at Weldon (Mus. Yert. Zool.) ; Fort Tejon (Cope, 1889, p. 360) ; 
Antelope Yalley near La Liebre Rancho (Stejneger, 1893, p. 224) ; 
Oro Grande, San Bernardino County, Bluff Lake, San Bernardino 
Mountains, Cabezon, Riverside County, Schain’s Ranch, San Jacinto 
Mountains, and Carizzo Creek, eastern San Diego County (specimens 
in Mus. Yert. Zool.). This species has not been recorded along the 
east base of the Sierra Nevada and no specimens or records are known 
from Owens Yalley. 
Ilyla regilla is the only salientian which is found on the islands 
off the coast of California, having been recorded from Santa Cruz 
Island (Yarrow and Henshaw, 1878, p. 208; see Yan Denburgh, 1905, 
p. 23), and on Santa Rosa and Santa Catalina islands (Yan Denburgh 
and Slevin, 1914, pp. 135, 137). Off the coast of Lower California it 
is found on Cerros (or Cedros) Island (Streets, 1877, p. 35; Yan 
Denburgh, 1905, p. 23). 
Life-history . — Ecologically as well as geographically, Hyla regilla 
is but slightly restricted. Adults sequester themselves in all sorts of 
shelters, even at distances of half a mile from water. Growths of 
water cress or other plants along streams, brush and piles of debris 
along river banks, burrows of meadow mice and other terrestrial 
mammals, crevices in boulders, artificial drains and culverts of various 
sorts, basements of buildings and crevices in outbuildings — all of these 
