1925] Storer: A Synopsis of the Amphibia of California 
81 
and Camp, 1917, p. 139), Saint Helena, Napa County, and Agua 
Caliente, Sonoma County (Calif. Acad. Sci.). South of the Golden 
Gate it is confined to a narrow coastwise strip nowhere more than 
fifteen miles in width. Dunn (1918) has recently recorded the species 
from “Berkeley.” I have never found or known of specimens being 
found on the east side of San Francisco Bay, and I think it probable 
that the specimens in the Museum of Comparative Zoology which 
formed the basis of Dunn’s record were collected elsewhere, possibly 
in Marin County, and later shipped from Berkeley. 
Life-history . — In a small body of water 10 miles northwest of 
Ukiah, Mendocino County, known locally as Costen Lake (pi. 1, 
fig. 2), situated in a rather deep canon in the redwood forest, I found, 
on June 18, 1922, some large jelly masses, which, by reason of their 
size and location, I believed to be the egg capsules of this species. All 
the eggs had developed and the larvae had hatched out. These jelly 
masses were firmly attached to twigs of brush which had fallen into 
the water and the different masses were from 12 to 30 inches below 
the lake surface. At the time of my visit, the water at this particular 
spot was brilliantly clear, though most of the lake elsewhere was 
covered with a dense growth of duckweed ( Lenina , sp.) and other 
surface plants. The individual jelly masses were on the average about 
75 millimeters in diameter. The largest one recovered measured about 
75 X 75 X 100 millimeters. The jelly was firmer than that which 
surrounds the eggs of any of the California Salientia, resembling that 
in the egg mass of Triturus torosus. In the largest of the jelly masses, 
there were upward of 25 capsules from which larvae had hatched out. 
Various portions of the lake were then searched for larvae, but 
only two were found. One of these was fully 150 millimeters in total 
length, with gills still in evidence ; it was walking on the bottom of 
the lake in water about 4 feet deep, and within 50 feet of the place 
where the jelly masses were found. The other larva was discovered 
while searching the opposite end of the lake where a cold mountain 
stream entered and where there was a dense growth of water cress. 
This larva was 49 millimeters in total length. Young trout of about 
the same length were in the creek. I was told by people in the neigh- 
borhood that the large ‘gray’ larvae are sometimes seen in the deeper 
pools of the creeks in the canon bottoms nearby. 
At my request, Miss Una Boyle, whose summer home is near Costen 
Lake, searched the water of the lake late in the spring of 1923 and 
early in 1924 for egg masses of this salamander. In 1923 she found 
