W. Reiner 1950 Journal 16 Feb. Calif: Contra Costa Co., Lafayette Reservoir Visited Triturus study area for first time since 28 Jan. 1430-1815 hrs spent in area. Willows budding, soil still very damp, grass 4-6 in. high. 1800 hrs. temp. air 8.5°C, water & lake and pool mentioned below 11.5°C. 19-25, adult ff taken under boards or in open. All but two active on surface. All ff apparently in water. ff especially in evidence at dusk when they appear to begin moving about. Many more seen than could be marked in trines available. One ff recaptured, #18. Map of area made and metal number tags put on cover items. In a pool about 25 ft. across and 7 un determined depth, formed by the blocking of a ravine by a road fill, a large number of breeding Triturus noted. At least 10 amplexing pairs counted. Large numbers (30-40) non amplexing individuals (o? and ff) also seen. Water murky and thin coffee color. Amplexing pair seen near the center over deep water and, also near shore. Decided preference evident for shallow water amplexing. At least five pair in water 1-2 in. deep and one of those