P. PEARSON 1948 13 April 26, 1948 Strawberry Canyon, Berkeley, Cal. caught by Betty Davis 1101 (B.D. 12) Sorex trowbridgii montereyensis ♂ 4/26/48 Strawberry Canyon, Berkeley. 110 x 49 x 14 x 7, Testes tiny 1102 Sorex trowbridgii montereyensis ♀ V.G. smallish, looks immature, no placental area. Lubinski in Banniz + acetone 108 x 47 x 14 1103 (BD 35) Sorex trowbridgii montereyis ♀ 4 late embryos 120 x 50 x 14 1104 (BD 50) Sorex trowbridgii montereyensis ♂ 110 x 47 x 14 testis grayish, 5 mm., tubules small. Lake Merritt, S. Francisco Co., Cal. 1105 Serrinomus ♂ caught 4/22/48. killed 4/26 caught in contact with ♀, perhaps copulating. Jakes Merritt, S.F. Co., Calif. Both ovaries large. Follicles up to + 2 shot size. 1 mi S. Nacoma (Stanisla, Co.), Merced Co. April 10, 1948 1106 (CK 371) Mustela frenata xadithrogeny testes large. Some sperm + mitoses in tubules. Berkeley, Cal., May 1, 1948 1107 Tadarida mexicana May 1, 1948 found torpid in morning in sidewalk by Mary Eaton. lively when received. killed 1 pm. Rt. uterus slightly larger. Rt ovary slightly larger, with one fairly large follicle 1108 (PK 678) Pipistrellus ♂ captured 5/2/48 Goldale, Kern Co. Calif. killed 5/3/48 testes + blocks sized about length of hind foot, accessory very large, seminal tubules quite inactive without sperm. epididymis with lots of sperm, especially in pigmented part.