49 
to severe epidemics, sometimes almost to the extent of extermi- 
nation. 
60. SAN DIEGO COTTONTAIL. Sylvaticus auduboni 
sanctidiegi. 
Common from the coast to the pine forests. 
61. ARIZONA COTTONTAIL. Sylvaticus auduboni 
arizone. : 
Rather common in places in the foothills bordering the Colo- 
rado Desert and east through Arizona. 
62. ASHY BRUSH RABBIT. Sylvaticus bachmani cinerascens. 
Common in thick brush from the coast to the higher moun- 
tains. Seldom seen in the open. 
Order PINNIPEDIA. Seals. 
Family PHOCIDAS.  Earless Seals. 
Seals are abundant along Arctic seashores; common along 
those of temperate regions ; less common or wanting along trop- 
ical coasts. The food is fish and some crustaceans and mollusks. 
The fish are caught by pursuit in the water. Seals must come 
to the surface every few minutes to breathe, and they come 
ashore occasionally to rest and to bask in the sun. 
63. SAN GERONIMO HARBOR SEAL. Phoca richardi 
geronimensis. 
Occasional in San Diego Bay and at sea; a small herd stays 
in Mission Bay. They destroy many fish and in that way are 
injurious to human interests with but little good to offset the 
loss. 
Family OTARIIDA£. Eared Seals. 
64. CALIFORNIA SEA LION. Zalophus californianus. 
Occasional along the coast. Prefer the neighborhood of rocky 
islands, which are lacking near the coast in this county. 
Elephant Seals, Macrorhinus angustirostris, formerly were 
abundant on some of the Santa Barbara Islands. I know of no 
records of any Elephant Seals having been seen on shore within 
San Diego County but this probably occurred at times when they 
were still common. The species is very nearly exterminated, a 
small herd of about a dozen individuals that occasionally comes 
ashore on Guadaloupe Island being the only known survivors. 
Order CARNIVORA. Flesh-eating Mammals. 
Family FELIDAS. Cats. 
65. PACIFIC COAST PUMA. “Mountain Lion”. Felis 
oregonensis. 
Still occasionally found in San Diego County. I have never 
seen one alive out of a cage. The food is flesh exclusively. Be- 
ing large and powerful they are able to catch large game, such 
