station grid (10 meter intervals) that had a random 30 traps set. Checked a 6x8 grid. Also checked a 3 x 10 grid that straddled a ravine. The 10x10 + 6x8 grids were in the flat grassland w/ scattered ephedra. The random 30 traps were to compare proportion of flat land catch to 30 traps set in the ravine. Dingens were captured in the flatland and along the ravine. These are stout, strong animals. Upon release, they would head for a brush, stop just next to it for a moment & then hop to a burrow opening, or they would merely hop off to a burrow. A summary of the mornings and afternoons observations are presented in species accounts. D. nitrosidea are about 1/2 the size of Giant Krats. They were most abundant near or in the ravine. These animals, upon release will rapidly hop off into the center of a brush and