RIBBLE D.O. 1986 Peromyscus truei (count-4) Russell Reservation, Contra Costa Co., Calif. July 13 # 601 ♀?, mature, scrotal testes (baldly, very small). Ear-tagged & released. Trapline I (nw of observatory) st#1 602 ♀, mature, parous, closed vulva. " " " st 1 603 ♂?, early mature (head grey), testes barely scrotal. " " " st 2. 0100 ♂?, early mature (head grey), testes barely scrotal. Ear-clipped & released " st.6 * Ear clip system: 100 200 300 40 20 30 0110 ♀, immature, nulliparous. Ear-clipped & released " st.6 0120 ♂?, mature, scrotal testes. " " " st.9 0100 ♂?, early mature, nonbreeding " " Trapline II (end of valley rd.) st.3 0110 ♂?, mature, testes swollen but non-scrotal " " " st.3 0120 ♂?, mature, nonbreeding - " " " st.4 898 ♂?, mature, scrotal testes. Previously tagged by D. Wagner. " " st.6 0100 ♀, mature, vulva perforate, parous. Ear-clipped & released Trapline III (along of valley rd) st. 1 0110 ♂?, mature, scrotal testes. " " " st.83 0120 ♀, early subadult, nulliparous " " " st.5 0130 ♀, subadult, nulliparous. " " " st-5 0200 ♀, subadult, nulliparous " " " st.7. 0210 ♂?, mature, scrotal testes " " " " 0220 ♂?, mature, scrotal testes " " " " st.8 0230 ♀, mature, vulva closed, appears nulliparous. " " " " 0300 ♀, immature, nulliparous. Tiny ≈ 10g " " " st.9 0310 ♀, mature, pregnant (palpable) " " " " st.10 0100 ♀, subadult, nulliparous " " Trapline II (>side of valley) st. 2 0300 ♂?, mature, testes swollen intermediately but not-scrotal " " (natural notch) st.4 0110 ♂?, immature, nonbreeding. " " " st.6 0120 ♂?, immature, nonbreeding. Tiny ≈ 10g " " " st.7 0130 ♀, mature, vulva closed, probably early pregnancy " " " st.7 0200 ♀, mature, vulva closed, parous " " " st.8