No. 177506 (U. S. N. M.) _T. t. ocius_, 1; 12 mi. W Linwood, Henrys Fork, Wyo. 200 62 26 27.5 11.5 19.9 17.8 6.2 6.8 1.0 13.5 7.0 _T. t. parowanensis_, 2; Britts Meadow, Beaver Mountains Av. 215 59 28 34.3 14.5 22.4 18.6 6.0 8.1 1.4 17.3 7.9 Min. 202 48 27 34.1 14.1 22.0 18.4 5.8 8.0 1.0 17.2 7.6 Max. 228 69 29 34.6 14.8 22.7 18.9 6.2 8.2 1.7 17.3 8.2 ---------------------------------------------------------------------- MEASUREMENTS OF ADULT FEMALES OF THOMOMYS (In millimeters) ====================================================================== Total length | Length of tail | | Length of hind foot | | | Basilar length | | | | Length of nasals | | | | | Zygomatic breadth | | | | | | Mastoid breadth | | | | | | | Interorbital breadth | | | | | | | | Alveolar length of | | | | | | | | upper molar series | | | | | | | | | Extension of premax | | | | | | | | | post. to nasals | | | | | | | | | | Length of | | | | | | | | | | rostrum | | | | | | | | | | | Breadth | | | | | | | | | | | of rostrum ---------------------------------------------------------------------- _T. t. gracilis_, 2; topotypes Av. 190 58 27 29.7 12.0 19.7 17.3 6.4 7.3 1.2 14.0 6.5 Min. 185 54 27 29.5 11.9 19.7 16.9 6.3 7.2 1.1 14.0 6.4 Max. 194 61 27 29.9 12.0 19.7 17.6 6.5 7.4 1.4 14.0 6.6 _T. t. oquirrhensis_, 7; topotypes Av. 203 56 27 30.2 12.9 20.4 18.2 6.8 7.5 0.8 14.8 7.2 Min. 193 52 25 28.5 12.2 19.5 17.5 6.6 6.7 0.5 14.2 6.9 Max. 215 59 28 31.5 13.3 21.0 19.1 7.2 8.0 1.0 15.5 7.5 _T. t. wasatchensis_, 19; topotypes Av. 205 62 27 31.5 12.7 20.5 18.0 6.5 7.4 0.9 14.6 7.2 Min. 180 52 23 28.1 11.2 19.3 17.2 6.2 6.0 0.6 13.0 6.8 Max. 222 70 30 32.5 14.5 22.0 19.9 6.7 8.1 1.2 16.2 7.5 _T. t. uinta_, 2; SW slope Bald Peak, Uinta Mts. Av. 181 49 25 28.4 11.6 19.8 17.3 6.6 7.2 1.3 13.5 6.8 Min. 177 47 25 28.3 11.6 19.8 17.2 6.4 7.0 1.1 13.3 6.8 Max. 185 50 25 28.4 11.6 19.8 17.4 6.7 7.3 1.5 13.6 6.8 _T. t. moorei_, 5; topotypes Av. 206 62 26 29.9 12.8 21.5 18.4 6.6 7.3 1.3 14.6 6.8 Min. 198 55 24 29.0 12.3 21.0 18.0 6.4 7.0 1.0 14.0 6.4 Max. 213 69 28 31.2 14.1 22.5 19.1 6.8 7.5 1.6 15.6 7.0