956 Page 3 (cat.) 142 Eutamias α 196-81-27-17 wt. 43.5 gms. Oct. 20, 1956 Corral Hollow, ele. 700', 1 mi W./Alameda- San Joaquin Co Line, Alameda Co., Calif. 143. Dipodomys α T.L. 11mm. Q68-142-43-18 144. Aphelocoma californica ζ 145 Lanius ludovicianus α 1957 Jan. 8, 1957 Strawberry Canyon, Berkeley, Alameda Co. Calif. Reithrodontomys megalotis longiceudatus 146 Reithrodontomys ζ no embryos 124-67-17-14 147 " α 125-68-16-13 148 " ζ no embryos 136-68-18-15 149 " α 129-64-17-14 150 " ζ no embryos 194-73-17-13 151 " ζ " " 131-65-16-15 Jan. 23, 1957, alluvial fan on South side of Mt. Russell, Riverside Co., ele. 1850, Calif. 152 Dipodomys agilis ζ no embryos 292-190-45-16 wt. 48.5 gms 153 Peromyscus ζ 4embryos L.H. 164-68-20-18 wt. 20.9 gms 154 " " α T.L. 7mm. 149-68-18-16 19.9gms. 155 " " α T.L. 8mm. 199-114-21-18 19.0 gms. Jan. 23, 1957 Rocky Slope on south side of Mt. Russell, Riverside Co., ele. 1850; Calif. 156 Neotoma ζ no embryos 327-161-33-32 wt. 121.3 157 Perognathus fallax α T.L. 6mm. 189-119-24-9 wt. 18.8 gms Jan. 23, 1957 S.E. Side of Mt. Russel, ele. 1550', Riverside Co., Calif. 158 Dipodomys ζ 1embryal" " Rn.274-161-46-18 wt. 54.9 gms 1850' Jan. 23, 1957 Badlands, 10 Mi Eof Int. of Rte 60 and 79" Riverside Co., Calif. Coll W.H. Muller 159 Dipodomys ζ no embryos 287-178-41-19 61.9 gms. Below same Loc as 158 160 Peromyscus α T.L. 9mm 193-109-20-18 21.9 gms 161 " " ζ No embryos 216-114-21-18 23.8 gm's 162 " " ζ no embryos 193-112-21-28 17.6 gms