The opossum is common in and near small towns and cultivated areas at
the Pacific base of the mountain range and does not thrive away from
human habitation; extensive trapping in the coastal sage and chaparral
belts produced no specimens except immediately adjacent to citrus
groves. Pequegnat (1951:47) mentions that opossums in the Santa Ana
Mountains of southern California are in the lower parts of the larger
canyons, especially near human habitation.
_Specimens examined._--Los Angeles County: Claremont, 1600 ft.,
2 (PC).