Cute, Blair 1975 Journal 1/4 MINNE Stuffy Spring, Joshua Tree National Monument, Riverside Co. Calif. March 23 Plants in area of head of stubby springs trail (on south west and jumper flats). Pinyon Pine @ Purshia Tridentata Ephedra juniper @ Nolina ROSE RICE GREGYIA SPINOZA, Cholla 5 cent Oale @ Atriplex canescens (few), east end of flat). Joshua Tree JT Eriogonium ssp. Blackbush @ Monrotila, annul grasses, bunchgrasses On the morning trap line 1 produced 30 D. merionii, 1 perognathus truei and 1 perognathus sp. line 2 produced 4 D. merionii, 3 P. truei and 2 Neotoma lepida. line 3, the longest line, which traversed several different vegetational and soil associations, produced 32 D. merionii 6 D. microps, 1 Onychognus. see map 1 Of the 6 D. microps caught, all were taken in the coleogyne-juniper association, with much hard packed gravel-sand separating the burrows. 3 were adult ♀♀ of 66,54, and 44 g. weight, 1 was 2-3 week old ♀, eyes open, weight 20 or 21 g., and 2 were Males with scrotal testes, weights 64, 59 g. all but the ??♀ were released at the trap they were taken at. The 66 g ♀ was almost surely pregnant, the other were in reproductive condition. Low Temperature at night was 1°C, windy from 1:00am on. capture sites