D.F. Hoffmeister 1939 Microdipodops megacephalus July 31 N.E. edge Alkali Lake, 4200 ft., Lake Co., Oregon Set out 56 traps last night with the particular aim of taking this genus. Caught 5 of this species, 3♀, 2♂, apparently all adults. The total catch was 23 of the 3 genera, Dipodomys?, Perognatus", Microdipodops.⁵ I take this to be a fair catch for this area on a fully-moonlighted) night. Caught this species in the soft sand bordering this dry Alkali Lake, near or at several feet distance from any visible burrows. The animals do not seem to be as tenacious as Perognathus as one was still "partly" alive in the trap, and was quickly killed. The cheek pouches were empty in all specimens except for a very small amount of brush of some undeterminable kind.