Hendrickson 1950 Journal Marsh Creek, 4 mi. E. Mt. Diablo, Contra Costa Co., Calif. Aug. 14, 1950 Took the family to this locality for a picnic and search for Reticulitermes (food for Batrachophaga). The lunch beside a fairly large pool in the otherwise dry creek bed. This pool was just below a large, gravelled shoulder on the road as it sweeps S.E. - E. around a bend in the canyon. The pool measured about 18' x 60'. (Clear, with stony-muddy bottom and some fil. algae). A search for lemmite proved unsuccessful and I returned to the pool to play with the children. Collected two Pana aurora and eight Pana boylii boylii from the pool, as well as two metamorphosing aurora (?) tadpoles and a small minnow (Agosia?). There were many adult frogs and large numbers of newly metamorphosed frogs concentrated in and near the water. Saw two Hyla regilla of this year in the pool, also.