R. Zinke Mar. 23, 1907 Diadophis ambalis ambalis Pine Canon, Mt. Diablo, Contra Costa C. Calif. 1903. Found beneath a slab of oak bark on the ground in oak woodland. SV 243mm. Mid-ventral color Capucino Yellow. Sub-caudal color between Scarlet and Brazil Red. The ventral color covers the first dorsal scale now. There is a spot of ventral color at the base of the scales on the second row. The first six supra labials have pale orange color on the lower portions, delimited above by a black margin. The ventral surface is heavily spotted with black.