Pteromys Californicus 23 June Blackhills, 2.6 miN Orinda Village, Contra Costals, Calif., 10202 ft. 1 juv ♂ , 227-109-25-27 1 subadult ♀ 213-111-26-24 Traps baited with walnut. Both caught on North facing slope, north side of hill under _________ 8 July ♀ no cndryos shiv in trap, caught by tail. Had chewed string, and was about 10 ft from where the trap was originally. S. side of hill, mus. sp., walnut. Under _________ 14 July ♂ 114, slipping badly, made flat skin + skull. A ♂ 42.8 gm, 239-122-26-26, thrown away.