J.R.Alcorn 1943. Catalog 3\frac{1}{2}-mi. S Pátzcuaro, 7900 ft., Michoacan March 9, 1943 3881 ♂ Reithrodontomys 153, 76, 20, 15 (E.R.Hall) wt. 10.0 gm. 3882 ♂ " " 176, 100, 20, 18 (E.R.Hall) wt. 11.9 gm. 5 mi. S Pátzcuaro, 7800 ft., Michoacan. + body skel. March 10, 1943. 3883 ♀ Pocket Gopher 323, 88, 48, 7. wt. 631.3 gm. 3884 ♀ Thomomys 194, 57, 29, 5. wt. 72.9 gm. 3885 ♂ Microtus 154, 35, 22, 15. wt. 40.0 gm. 3886 ♀ " " 157, 36, 21, 15. wt. 41.3 gm. 3887 ♀ Reithrodontomys 147, 78, 20, 15. wt. 8.4 gm. 3888 ♂ Peromyscus 169, 71, 25, 19. wt. 22.8 gm. 3889 ♂ " " 162, 69, 23, 18. wt. 20.5 gm. SKULL ONLY 3890 ♀ Skunk 686, 583, 64, 34. Short stripe. Black hairs interspersed in white areas. March 11, 1943. 3891 ♂ Skunk 662, 319, 61, 30. wt. 1093.5 gm. 3892 ♀ Didelphis 581, 234, 56, 47. 3893 ♂ Microtus 134, 31, 21, 14. wt. 28.6 gm. 3894 ♀ " " 143, 26, 21, 15. wt. 33.4 gm. 3895 ♂ " " 148, 33, 23, 13. wt. 37.7 gm. 3896 ♂ Peromyscus 159, 66, 23, 18. wt. 21.3 gm. 3897 ♂ Microtus 120, 26, 20, 13. wt. 22.1 gm. 9 mi. SE Pátzcuaro, 8000 ft., Michoacan. March 11, 1943. 3898 ♂ Microtus 155, 35, 22, 15. wt. 40.4 gm. 3899 ♂ " " 148, 35, 22, 14. wt. 36.6 gm. 3900 ♂ " " 144, 32, 22, 15. wt. 32.4 gm.