A.L.Ziegler 1957 Sorex ornatus 2.5 mi. E Orinda, 500 ft., Contra Costa Co., California. Mar 18/68 Mike Marsh got in 1 on each date Feb2oo. Both coll. both or one in good breeding condition. Taken in live traps on his study area which also has Microtus californicus & Reithrodontys megalotis. 1.0 mi. N, 2.0 mi. E Martinez (San Marsh), Contra Costa Co., Calif. Feb 17 Caught 2 in marsh near coast of short-grassed field. Much of marsh in Sanicaniño but this small farming locality mostly in a mowed-down grassy area. Also took several Microtus & about 18 Reithro. Rattines (or zootom R. megnoris?)