Journal Hefner, M.S. 1975 Various locales through Walker Pass, Kern Co., California 27 April Results: [cn't] [sn't] 5 P. truei 7 Dipodomys peninsularis 3 Perognathus (longimembris) [1 large ~15gm 2 small ~ 7gm Success = 31/ 31% Large species is P. xanthomelas 100 2nd locality: 1.1 mi. by road, E. of Walker Pass Summit, 10 mi. W of Tuzokern, Kern Co., 4700 ft., California. 9. Dipodomys peninsularis 12 Peromyscus maniculatus [3 juv., 9 ad.] 2 P. boylii 1 P. truei 2 Perognathus (longimembris) [1 large ~ 15gm [small ~ 7gm Success = 26/ = 43.4 % Large species is P. xanthomelas 60 3rd locality, 3.9 mi. by road, E. of Walker Pass Summit, 9.2 mi. W. of Tuzokern, 4400 ft. Kern Co., California. 10 Peromyscus maniculatus 2 P. boylii 1 P. truei 1 Neotoma lepida 1 Onychomys torridus 5 Perognathus longimembris [all small] ~ 7gm 1 Dipodomys merriami 1 D. peninsularis