4-8. CROTALUS 



Boulevard), Riverside (San Jacinto, Vallevista, San Jacinto 

 Valley, Banning, Tahquitz Valley at 8,000 feet, San Jacin- 

 to Mountains), San Bernardino (Ontario, Santa Ana Canyon 

 at Seven Oaks, Doble at 7,000 feet. Bluff Lake, San Bernar- 

 dino Mountains, and in the Providence Mountains in the 

 eastern part of the county), Los Angeles (Sierra Madre, 

 Mount Wilson, San Gabriel Mountains, Claremont, Santa 

 Catalina Island), Ventura (Mount Pinos), Santa Barbara 

 (Santa Barbara), Kern (Fort Tejon, Santos Creek, Delano, 

 Mohave, Tehachapi Mountains, San Emigdio Plain, Kern- 

 ville, Soda Springs on the North Fork of the Kern River, 

 Walker Pass, Bakersfield, eight miles northeast from Bakers- 

 field, 12 miles northwest from McKittrick), Tulare (East 

 Fork Kaweah River, Kern River, Sheep Meadows), Fresno 

 (Fresno, Kings River Canyon, Charlotte Creek at 8,500 

 feet), Merced (Los Baiios), Mariposa (Yosemite Valley, 

 Merced River, Dudley), El Dorado (Strawberry), San Joa- 

 quin (seven miles southwest from Tracy), San Luis Obispo 

 (seven miles southeast from Simmler, Indian Creek, Cuy- 

 ama Valley), Monterey (Carmel Valley near Del Monte 

 Ranch, Carmel, Jolon, Monterey), Santa Cruz (Santa Cruz, 

 Glenwood), Santa Clara (Gilroy, Smith Creek, Mount 

 Hamilton, Los Gatos, Black Mountain, Stanford Univer- 

 sity), San Mateo (Woodside, Sierra Morena, Corte Madera 

 Creek, Rolph Ranch), Contra Costa (Antioch), Marin 

 (Rock Spring, Mount Tamalpais), Yolo (Rumsey), Glen 

 (Winslow), Lake (Lower Lake), Sonoma (Petrified 

 Forest), Mendocino (Eden Valley Ranch, Covelo, Mount 

 Sanhedrin), Siskiyou (Gazelle, Sugar Loaf near Sisson), 

 Shasta (Baird), Modoc (Warner Mountains), and Lassen 

 (Eagle Lake), counties. 



Oregon records are from Douglas (Fort Umpqua), 

 Klamath (Klamath Falls, between Olene and Spring Lake), 

 Lake (Silver Lake and Warner Lakes), Harney (Camp 



