Measurements of Adult Females of Thomomys—Continued

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. convexus, 11; topotypes
Av. 197 57 27 29.9 12.5 21.7 19.3 6.6 7.7 2.6 14.7 7.4
Min. 182 43 26 27.9 11.2 21.0 18.8 6.2 7.1 2.1 13.3 7.1
Max. 204 63 28 30.9 13.4 22.3 19.8 7.1 7.9 3.1 15.2 7.7
T. b. tivius, 5; topotypes
Av. 203 68 27 29.5 11.1 21.1 17.8 6.5 7.2 2.4 13.5 6.8
Min. 192 63 26 28.0 10.5 20.1 17.3 6.3 7.1 2.0 12.7 6.4
Max. 215 74 30 31.3 11.4 22.9 19.0 6.7 7.5 3.0 14.2 7.2
T. b. bonnevillei, 7; topotypes
Av. 199 57 28 31.7 11.8 22.2 19.3 6.6 7.7 3.2 14.9 7.3
Min. 184 50 24 29.4 10.1 20.3 18.1 6.4 7.1 2.6 13.5 6.9
Max. 216 66 29 34.3 13.6 24.3 20.3 7.0 8.5 4.1 16.6 7.7
T. b. sevieri, 7; topotypes
Av. 205 62 28 30.2 11.8 21.6 18.0 6.4 7.0 2.7 14.2 7.1
Min. 199 54 28 29.4 11.3 20.6 17.7 6.1 6.6 2.1 13.9 6.6
Max. 212 70 29 30.7 12.6 22.1 18.6 6.8 7.4 3.0 14.7 7.6
T. b. wahwahensis, 8; topotypes
Av. 185 56 27 28.7 11.3 20.6 17.6 6.3 7.1 2.1 12.6 7.1
Min. 180 50 26 26.3 10.2 19.0 16.5 5.8 6.9 1.1 10.8 6.4
Max. 197 62 29 30.7 12.6 22.0 19.0 6.7 7.8 2.9 14.0 7.6
T. b. planirostris, 8; topotypes (Burt, 1931:39)
Av. 215 71 31 32.2 12.4 23.2 18.7 6.5 8.1 3.6 .... 7.9
Min. 205 61 30 31.5 11.8 22.3 18.1 6.4 7.5 2.8 .... 7.5
Max. 228 78 33 33.0 12.9 24.1 19.5 6.7 8.6 4.5 .... 8.1
T. b. birdseyei, 3; topotypes
Av. 220 71 29 31.6 11.8 22.7 18.6 6.1 7.4 2.4 14.7 7.5
Min. 217 68 28 31.4 11.0 22.4 18.3 6.0 7.3 1.6 13.3 7.4
Max. 223 75 30 32.0 12.8 23.0 19.1 6.2 7.4 3.0 15.3 7.5
T. b. virgineus, 4; Beaverdam Wash, 5 mi. N Utah-Arizona Line
Av. 211 64 29 31.6 12.2 22.6 19.4 5.9 7.5 3.1 15.1 7.3
Min. 202 60 27 31.3 11.3 22.4 18.8 5.8 7.3 2.4 14.4 7.2
Max. 218 68 30 32.1 12.8 22.7 20.0 6.1 7.8 3.7 15.5 7.6
T. b. aureus, 3; topotypes
Av. 226 57 31 33.2 13.3 23.8 19.8 6.7 8.2 1.9 15.3 8.2
Min. 217 54 30 32.8 12.5 23.3 19.6 6.4 8.0 1.6 14.5 8.2
Max. 233 64 31 34.0 14.2 24.4 19.8 6.9 8.4 2.0 16.4 8.3
No. 20300 (C. M.) T. b. howelli, 1; 10 mi. N Moab
202 59 28 32.4 12.3 21.1 19.2 6.4 7.9 2.4 15.8 8.3

Measurements of Adult Females 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
No. 158524 (U. S. N. M.) T. b. dissimilis, 1; topotype
188 61 27 28.2 10.1 19.0 16.7 6.1 7.4 2.1 12.8 6.5
No. 158528 (U. S. N. M.) T. b. osgoodi, 1; topotype
203 61 27 29.6 11.5 .... 18.3 6.9 7.4 2.0 14.0 7.3
T. b. alexandrae, 3; topotypes
Av. 205 63 28 30.9 11.8 20.8 17.9 6.4 7.6 1.8 14.1 7.5
Min. 195 57 27 28.7 11.5 20.5 17.2 6.3 7.5 1.5 13.6 7.2
Max. 215 70 29 31.5 12.1 22.2 18.6 6.5 7.7 2.0 14.7 7.7

LITERATURE CITED