FIG. 4. _Dipodomys heermanni morroensis_, [M], adult, no. 22082, KU; S side Morro Bay, 4 mi. S Morro, San Luis Obispo County, California; 25 January, 1948. FIG. 5. _Dipodomys ingens_, [F], adult, no. 22069, KU; 25 mi. SW Mendota, San Benito County, California; 2 February, 1948. FIG. 6. _Dipodomys agilis perplexus_, [F], adult, no. 22091, KU; 1-3/10 mi. N Monolith, Kern County, California; 3 February, 1948. FIG. 7. _Dipodomys venustus sanctiluciae_, [M], adult, no. 22071, KU; 1-1/2 mi. S Jolon, Monterey County, California; 26 January, 1948. FIG. 8. _Dipodomys spectabilis spectabilis_, [F], adult, no. 22110, KU; 5 mi. NE Willcox, Cochise County, Arizona; 19 January, 1948. FIG. 9. _Dipodomys merriami merriami_, [F], adult, no. 23366, KU; E side Carson Lake, Churchill County, Nevada; 2 October, 1945. FIG. 10. _Dipodomys deserti deserti_, [M], adult, no. 23364, KU; 15 mi. WSW Fallon, Churchill County, Nevada; 3 November, 1945.] TABLE 3 RELATIVE SPECIALIZATIONS OF THE SPECIES FOR EACH INDEX Column headings: A: Humeroradial B: Intermembral C: Crural D: Tibioradial E: Femorotarsalmetatarsal F: Cranial G: Average ============================================== A B C D E F G ---------------------------------------------- ordii 5 1 1 1 1 5 2.33 microps 1 2 4 5 4 2 3.0 panamintinus 6 3 3 3 3 1 3.1 agilis 7 4 5 6 6 4 5.3 heermanni 3 6 7 9 5 3 5.5 ingens 4 7 2 8 2 10 5.5 spectabilis 2 11 6 11 7 8 7.5 phillipsii 11 5 10 2 11 7 7.6 merriami 10 9 9 4 10 6 8.0 nitratoides 9 8 8 7 9 9 8.5 deserti 8 10 11 10 8 11 9.6 ---------------------------------------------- The figure 1 represents the least specialized condition for the index, while the figure 11 represents the most specialized condition. The remainder of the numbers indicate the relative degree of specialization of each species for each index. The species that have been examined are listed in Table 3 in increasing order of specialization from top to bottom.