E.V.Miller 1940 Neotoma micropus March 24 460'±elev. 38 mi S of Nuevo Laredo, in Nuevo Leon, Mexico. Cought 2♂s and 2♀ (no embryos) in rat traps set near their nests just around the bases of prickly pear cacti's. Habitat - flat country, several species of cacti and brush. Nearly 2 inches of rain this morning. April 4 550' ft. 31 mi ENE (Bravo) Nuevo Leon, Mexico. Set 10 rat traps baited with dried fruit in thick prickly pear cactus habitat. Soil sandy, topography - very low hills. Set traps in late afternoon - about 2 hrs. after dark I looked at 8 of the traps and found 4 rats - 3♀, 1♂. April 6 Elevation about 100 ft., 24 mi ESE Reynosa, Tamaulipas, Mexico. Took 3 (1♂, 2♀) N. micropus in traps. April 11 Chaco Escondido, 20± mi S Reynosa, Tamaulipas. Took one small ♀ in habitat of fairly open mesquite and other brush and some cacti, mostly prickly pear. On April 12 I took 3♀ and 2♂ along a brush fence next to a ploughed field.