P. Brylski 1982 Journal 0.5 mi S Benton Station, Inyo Co., Calif 24 March Farm check the traps and pick them up. Two microlipodops!! Elevation here's around 5300 ft and snow's still found in pockets (rare though). Daytime temperature was ~70°F and nighttime round 35°F. Still, either K-mice don't occur on this plot or they're still in winter estivation. I suspect the latter. Only caught on P. parvus, a nullip. ♀. She died in the trap. Probably she was among the first of her kind above ground after the winter. Can't say for sure of course. Also caught D. neviansi, and probable D. ordii [illegible] and what appears to be D. panamintius. All ♀ These latter 3 were kept in the Shermons, supplemented w/ sand, lettuce and feed. Haven't time to really look them over since I'm heading south again. Three neviansi ♀♀ of which I sacrificed and examined showed little/no sign of pregnancy. Perhaps very early. All panamintius were non-scrotal. Those 8 kept. Therefore, reproduction is not underway here for the heteromyids. Though I did release D. maniculatus (30♂♀, 1♀), one ♀ which I sacrificed showed well-developed embryos. This contrasts with the Coso Mt maniculatus which gave birth before my visit on 10-11 March 1982. The 2000 ft difference in elevation has quite a marked effect. 1230pm load up and head south. (See catalogue for species list). 25 March 1 mi E Olancho, Inyo Co., Calif Arrived here at 330pm Skip Hennis from the Rose Valley Ranch