_T. b. planirostris_, 8; topotypes (Burt, 1931:39) Av. 238 76 32 35.6 13.8 25.9 20.4 6.6 8.5 3.7 .... 8.8 Min. 222 66 31 33.3 12.5 24.4 19.8 6.2 8.2 3.0 .... 8.3 Max. 261 83 34 38.7 15.3 27.6 21.3 7.2 8.9 4.5 .... 9.4 _T. b. birdseyei_, 3; topotypes Av. 227 64 31 34.9 13.8 26.2 20.9 6.2 8.4 2.6 16.3 8.3 Min. 214 52 30 34.5 13.1 26.0 20.1 6.0 8.1 2.2 16.0 8.2 Max. 243 81 32 35.2 14.1 27.4 21.5 6.5 8.8 2.8 16.9 8.4 _T. b. virgineus_, 5; Beaverdam Wash, 5 mi. N Utah-Arizona Line Av. 226 68 29 34.6 13.5 25.6 20.7 6.3 8.0 3.0 16.5 8.5 Min. 216 62 27 33.5 12.8 25.0 20.0 6.1 7.6 2.4 15.3 8.3 Max. 235 70 30 34.9 14.4 26.0 21.1 6.6 8.4 3.5 17.4 8.7 _T. b. aureus_, 3; topotypes Av. 242 68 34 36.6 14.3 25.3 21.4 6.6 8.3 2.4 17.2 8.7 Min. 233 65 32 35.3 13.8 24.6 20.6 6.4 7.7 2.0 16.7 8.3 Max. 251 70 36 37.8 14.9 25.8 22.0 6.8 8.7 2.5 17.9 9.0 ---------------------------------------------------------------------- MEASUREMENTS OF ADULT MALES OF THOMOMYS--_Concluded_ ====================================================================== 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. b. howelli_, 5; 10 mi. N Moab Av. 213 67 31 33.1 13.5 23.2 20.1 6.5 8.3 2.5 16.1 8.8 Min. 205 64 30 31.8 12.8 22.8 18.9 6.4 8.0 2.3 15.1 8.1 Max. 225 68 32 35.3 14.3 24.1 20.7 6.8 8.8 2.8 17.5 9.4 No. 3094 (U. U.) _T. b. absonus_, 1; topotype 220 71 29 32.0 13.9 22.6 19.0 6.4 7.0 1.0 15.1 7.2 No. 158529 (U. S. N. M.) _T. b. osgoodi_, 1; topotype 225 70 29 33.8 13.3 22.7 19.6 6.6 8.4 3.2 16.5 8.3 _T. b. alexandrae_, 1; topotype (Benson, 1935:450) 205 59 27 33.9 13.7 24.3 19.7 6.5 8.0 ... 15.8 8.1 ---------------------------------------------------------------------- MEASUREMENTS OF ADULT FEMALES OF THOMOMYS (In millimeters)