1925] St over: A Synopsis of the Amphibia of California 
63 
(Storer, MS) ; Concord and Pacheco, Contra Costa County (specimens 
in Mus. Vert. Zool.) ; Oakland, Alameda County (L. H. Miller, MS) ; 
Mayfield and Palo Alto (Dunn, 1918, p. 457), Stanford University 
(specimens in Calif. Acad. Sci.), and Mount Hamilton, Santa Clara 
County (Storer, 1915, p. 56) ; Monterey (Gray, 1853, p. 11) ; vicinity 
of San Juan, San Benito County (Calif. Acad. Sci.) ; Fresno (Cope, 
1889, p. 86), and Oleander, Fresno County (Stoner, MS) ; Kings River 
below Kingsburg in Kings County (J. D. McDonald, MS) ; and Fort 
Tejon, Kern County (Cope, 1889, p. 85). 
Cope (1867, p. 192), after mentioning the Petaluma material, adds 
“Numerous specimens from near San Francisco in Mus. Compar. 
Zoology.” Dunn (1918) in listing the material in the Museum of 
Comparative Zoology, gives only Mayfield and Palo Alto, but men- 
tions a number of specimens. This may be the same material. 
Fowler and Dunn in 1917 (p. 8) recorded “ Arnby stoma tigrinum” 
in California from “McCloud River and spring at 1,500 feet elevation 
in Coast Range of Humboldt County. ’ ’ The first station is already a 
locality of record for Dicamptodon ensatus and the second is in the 
heart of the known range of that species; both localities are beyond 
the geographic limits heretofore known for Arnby stoma tigrinum 
[= calif or niense] . In view of the critical nature of these records the 
writer asked the authors to reexamine their material which consisted 
only of larvae. This they have done and they now (March, 1924) 
determine it to be Dicamptodon ensatus. 
The foregoing material suggests that the area occupied by Arnby- 
stoma calif orniense includes the Great Central Valley and the adjacent 
foothill districts. The species evidently does not occur in the north- 
western humid coast belt (which area is occupied by Dicamptodon 
ensatus ), nor in any part of the State south or east of the Tehachapi. 
Life-history . — Little is known concerning the habits of the adults 
of Ambystoma calif orniense. Save during the rainy season the 
animals are seldom found. Mr. Harry J. Snook states that in and 
about the city of Stockton, San Joaquin County, adults are occasion- 
ally seen in the basements of houses during the winter rainy period. 
One or two of the animals found in such situations are usually brought 
each year to his class in biology in the Stockton High School. In the 
spring, summer, and autumn months nothing is seen of them. Near 
Ripon, San Joaquin County, on April 2, 1912, an adult female (no. 
8240, Mus. Vert. Zool.), was washed up out of a ground squirrel hole 
in a field which was being irrigated. At Oleander, Fresno County, 
