1925] Storer: A Synopsis of the Amphibia of California 
141 
Measurements of Adult Specimens of Aneides lugubris farallonensis from 
South Farallon Island, California 
M. V. Z. No. 
Date 
Total length 
Length of tail 
Snout to gular 
fold 
Greatest width 
of head 
Orbit 
Interorbital 
space 
o 
h 
Hand 
Axilla to groin 
Hind leg 
Hind foot 
8588 
Sept. 
6, 1922 
126 
54 
19.0 
13.6 
4.0 
3.0 
18.8 
9.1 
35 
22.7 
12.0 
8600 
Oct. 
26, 1922 
126 
54 
18.2 
13.5 
3.6 
2.5 
20.4 
8.6 
33 
22.0 
11.4 
8601 
Oct. 
26, 1922 
130 
60 
16.5 
12.5 
3.5 
2.6 
17.6 
7.0 
36 
19.4 
10.2 
History.- — Early specimens of this form were included under the 
name of the mainland form. In 1905 Van Denburgh described the 
island form as distinct. 
Range— Aneides lugubris farallonensis is confined to South Far- 
allon Island, which is in the Pacific Ocean about 28 miles west by south 
offshore from San Francisco. 
Life-history. — The occurrence of a stock of Aneides lugubris on 
the Farallon Islands has been known at least since 1882 (Boulenger). 
One writer (Keeler, in Blankenship and Keeler, 1892, p. 151) has 
ventured the statement that the salamanders may have been intro- 
duced in recent times through the agency of man. For many years 
prior to 1900 the Farallon Islands were visited each summer at fre- 
quent intervals by men from San Francisco who collected eggs of the 
California Murres which nest on the island for the city markets. This 
traffic probably suggested to Keeler the possibility of the salamanders 
having been introduced. The introduction of trees, for example 
Monterey cypresses, carried as nursery stock to South Farallon, 
would have afforded a possible means of transport. But the fact that 
the island population of Aneides differs from the mainland stock in 
structure and coloration indicates that it has been present there over 
a long period of time, without doubt since the Farallones were last 
separated from the Coast Range. 
On August 18, 1922, I visited South Farallon Island and during 
the afternoon made a search for Aneides l. farallonensis. The ground 
above the surf was everywhere quite dry and although I turned over 
many rocks and boards no specimens could be found. The animals 
were presumably in deeper shelter where adequate moisture was avail- 
able. I was told that a short time previously several of the salaman- 
