Ochraceous Buff mixed with dusky; sides and underparts Light Ochraceous
Buff; chin, nose, cheeks and top of head grayish black; postauricular
patches black mixed with buff; front feet, hind feet, inguinal region
and distal third of tail white. Skull: Nasals relatively long; rostrum
narrow; ascending processes of premaxillae narrow; extension of
premaxillae posterior to nasals short; lambdoidal and sagittal crests
poorly developed; zygomatic arches light; jugals nearly straight;
palate narrow; molariform teeth small.
_Comparisons._--Compared with topotypes of _Thomomys bottae
trumbullensis_, _absonus_ differs in: Size smaller. Color: Markedly
lighter throughout. Skull: Smoother, less angular; zygomatic arches
weak as opposed to robust; nasals more convex as viewed laterally;
extension of premaxillae posterior to nasals less; ascending processes
of premaxillae narrower; palate narrower; palatal pits shallower;
rostrum narrower; molariform teeth smaller.
For comparisons of _absonus_ with _Thomomys bottae aureus_ see account
under that form.
Among named races of _Thomomys bottae_, _absonus_ most closely
resembles _planirostris_, but can be distinguished from the topotypes
as follows: Size markedly smaller. Color: Lighter, more buffy
throughout. Skull: Smaller, less ridged and more nearly flat; nasals
convex as opposed to flat; extension of premaxillae posterior to nasals
less; width of ascending processes of premaxillae less; zygomatic
arches weaker; palate narrower; alveolar length of upper molar series
shorter; tympanic bullae more inflated ventrally; molariform teeth
smaller and lighter.
_Remarks._--One specimen from Kanab is an intergrade between
_trumbullensis_ and _absonus_. The majority of its characters are with
_absonus_ to which it is referred (see Hall and Davis, 1934:52). Two
specimens from Escalante are intergrades between _absonus_ and
_dissimilis_, but are referable to _absonus_.
_Specimens examined._--Total, 3, distributed as follows:
_Garfield County_: Escalante, 5,258 ft., 2 (B. Y. U.), _Kane
County_: Kanab, 4,925 ft., 1 (M. V. Z.).
=Thomomys bottae alexandrae= Goldman
_Thomomys alexandrae_ Goldman, Journ. Washington Acad. Sci.,
23:464, October 15, 1933.
_Thomomys bottae alexandrae_ Benson, Univ. California Publ.
Zooel., 40:449, December 31, 1935.
_Type._--Male, adult, skin and skull, No. 250969, U. S. National Museum
(Biological Surveys Collection); 5 mi. SE Rainbow Lodge, near Navajo
Mountain, Coconino County, Arizona; June 16, 1933; collected by E. A.
Goldman; original number 23613 (after Goldman, type not seen).
_Range._--In extreme southwestern San Juan County, Utah. Known only
from Navajo Mountain, probably limited to the area enclosed on the
north by the Colorado and San Juan rivers, on the east and west by
Navajo and Piute canyons, respectively.
_Diagnosis._--Size small (see measurements). Color: Upper parts
Cinnamon Buff, grading over the sides to Pinkish Buff on underparts;
nose and top of head grayish black; hind feet and tail white;
postauricular patches large and dark. Skull: Small and not heavily
ridged; zygomatic arches widely spreading but weak; zygomatic arches
nearly parallel; tympanic bullae moderately inflated ventrally; palate
not arched; interpterygoid space U-shaped; dentition light.
_Comparisons._--Compared to topotypes of _Thomomys bottae absonus_,
_alexandrae_ differs as follows: Size smaller in every measurement
taken. Color: Upper parts Cinnamon Buff as contrasted with Light
Ochraceous Buff. Skull: Smaller in every measurement taken except
interorbital breadth and alveolar length of upper molar series which
are larger; molariform teeth larger.
Among named races of _Thomomys bottae_ occurring in Utah, _alexandrae_
most resembles _T. b. aureus_ to the northeast. It can be distinguished
from topotypes of the latter by: Size smaller in every measurement
taken. Color: Darker throughout. Skull: Smaller, slenderer and more
nearly flat; palate nearly flat as opposed to arched; zygomatic arches
weaker and not so widely spreading; interparietal narrower; tympanic
bullae smaller; dentition weaker.
_Remarks._--Goldman (1933:464) accorded _alexandrae_ full specific
status, because he found no intergradation with other races, from which
he thought _alexandrae_ had been isolated perhaps for thousands of
years by the barriers of the surrounding terrain. Benson (1935:450)
noted resemblances between _alexandrae_ and specimens of _latirostris_
from Keams Canyon, Zuni Well, and Winslow in Navajo County, Arizona (=
_aureus_), and also between _alexandrae_ and _absonus_ from Houserock
Valley, Arizona. He thought that _alexandrae_ is no more differentiated
or isolated than each of several other kinds of desert pocket gophers,
and, therefore, accorded _alexandrae_ only subspecific status, as I,
also, am inclined to do.
_Specimens examined._--One (M. V. Z.) from Soldier Spring,
Navajo Mountain, 8,600 ft., San Juan County. Fourteen
topotypes from Arizona also were examined.
MEASUREMENTS OF ADULT MALES 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. b. aureiventris_, 4; topotypes (Hall, 1930:446)
Av. 243 67 32 36.4 14.7 26.5 21.5 6.6 7.9 2.4 .... ...
Min. 232 59 31 35.3 14.0 25.5 20.9 6.1 7.8 1.8 .... ...
Max. 253 72 33 37.1 15.3 27.3 22.3 6.9 8.0 3.4 .... ...
_T. b. centralis_, 9; topotypes (Hall, 1930:446)
Av. 237 75 30 36.3 14.6 25.2 20.7 6.6 8.0 3.2 .... ...
Min. 215 61 29 34.5 13.9 24.6 19.7 5.8 7.5 2.2 .... ...
Max. 250 83 32 38.0 15.9 26.1 21.9 7.2 8.7 4.5 .... ...
_T. b. albicaudatus_, 7; topotypes (Hall, 1930:446)
Av. 228 65 31 35.4 14.0 26.1 20.5 6.6 8.1 3.2 .... ...
Min. 223 59 29 34.9 13.4 24.9 19.8 6.4 7.8 3.0 .... ...
Max. 235 72 32 36.1 15.1 27.8 21.1 6.9 8.4 3.8 .... ...
_T. b. robustus_, 9; topotypes
Av. 222 65 29 34.1 13.6 26.0 20.8 6.4 7.8 2.7 15.7 8.4
Min. 214 59 28 32.6 13.0 25.2 20.0 6.1 7.3 2.0 14.7 8.1
Max. 236 70 31 35.7 14.4 26.7 21.5 6.7 8.2 3.0 17.0 8.8
_T. b. stansburyi_, 5; topotypes
Av. 206 60 28 32.3 12.4 22.4 19.1 6.3 7.6 2.8 14.7 7.5
Min. 198 58 26 30.6 12.0 21.5 18.2 6.2 7.0 2.5 14.1 7.1
Max. 215 68 31 33.4 13.0 23.1 20.1 6.5 8.0 3.0 15.4 7.8
_T. b. nesophilus_, 4; topotypes
Av. 230 69 32 35.3 14.4 25.5 20.4 6.8 8.4 2.5 17.1 8.2
Min. 220 60 30 33.6 14.1 24.9 19.8 6.5 8.2 2.1 16.4 7.6
Max. 242 75 33 36.5 14.8 26.2 21.1 7.1 8.7 2.9 18.4 8.6
_T. b. minimus_, 2; topotypes
Av. 184 60 25 30.7 11.3 21.3 18.7 6.4 7.4 2.5 13.9 7.5
Min. 179 55 24 28.7 10.2 20.2 17.8 6.3 7.3 2.5 12.9 7.0
Max. 189 64 26 32.8 12.5 22.4 19.6 6.4 7.6 2.5 15.0 7.9
_T. b. lenis_, 2; topotypes
Av. 251 80 32 39.7 16.0 28.6 22.6 6.8 8.3 3.4 18.4 8.8
Min. 248 74 31 39.4 15.8 28.4 22.4 6.6 8.2 3.0 17.9 8.6
Max. 255 86 32 29.9 16.2 28.7 22.7 6.9 8.5 3.7 18.8 8.9
_T. b. contractus_, 8; topotypes
Av. 229 74 31 33.3 12.5 23.7 19.1 6.6 7.6 3.0 15.4 7.3
Min. 209 63 28 30.0 10.9 21.4 17.7 6.3 7.2 2.4 13.5 6.5
Max. 255 85 33 37.4 14.5 26.4 20.9 6.9 8.0 3.5 18.2 8.0
----------------------------------------------------------------------
MEASUREMENTS OF ADULT MALES 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
----------------------------------------------------------------------
No. 191959 (U. S. N. M.) _T. b. levidensis_, 1; topotype
222 65 28 33.3 12.7 24.5 19.0 6.5 7.6 3.3 15.1 8.0
_T. b. convexus_, 6; topotypes
Av. 213 59 28 33.1 14.3 24.9 21.7 6.6 8.0 2.6 16.2 8.2
Min. 206 57 27 31.3 13.9 23.8 21.0 6.5 7.7 2.1 15.2 8.0
Max. 233 68 29 35.0 14.6 26.7 22.3 6.8 8.1 2.8 17.2 8.6
_T. b. tivius_, 7; topotypes
Av. 208 69 27 31.5 12.2 22.4 18.4 6.4 7.2 2.4 14.0 7.1
Min. 199 67 25 29.3 11.9 20.6 17.1 6.0 7.0 2.1 13.2 6.5
Max. 227 70 30 34.1 12.8 25.0 19.8 6.6 7.6 3.0 15.0 7.9
_T. b. bonnevillei_, 3; topotypes
Av. 228 70 30 35.4 13.9 26.4 21.8 6.6 8.1 3.7 17.6 8.5
Min. 221 62 30 33.6 13.2 25.4 20.5 6.5 8.1 3.4 16.1 8.2
Max. 236 79 30 37.4 14.9 28.0 22.5 6.7 8.1 4.3 18.1 8.7
_T. b. sevieri_, 3; topotypes
Av. 216 67 30 32.7 12.9 22.9 18.7 6.4 7.2 2.5 15.3 7.6
Min. 210 66 29 31.7 11.8 22.2 18.0 6.2 7.0 1.8 14.5 7.5
Max. 222 68 31 33.5 13.5 23.4 19.3 6.7 7.2 3.0 16.4 7.7
_T. b. wahwahensis_, 4; topotypes
Av. 228 66 29 34.7 13.5 25.5 20.7 6.6 7.3 2.3 15.7 8.7
Min. 210 60 26 33.0 13.1 24.6 20.1 6.5 7.0 2.2 14.9 8.5
Max. 250 78 30 37.6 14.6 27.0 21.4 6.8 8.0 2.5 17.1 9.0
_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)
======================================================================
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. aureiventris_, 2; topotypes (Hall, 1930:446)
Av. 212 62 30 32.4 12.9 22.9 19.4 6.7 7.4 2.8 .... ...
Min. 208 58 29 31.8 12.6 22.5 18.9 6.6 7.0 2.7 .... ...
Max. 215 65 30 33.0 13.1 23.3 19.8 6.8 7.8 3.1 .... ...
_T. b. centralis_, 17; topotypes (Hall, 1930:446)
Av. 214 67 29 31.8 12.6 22.1 19.0 6.6 7.6 2.7 .... ...
Min. 195 55 27 30.5 11.9 21.3 18.2 5.9 7.0 2.0 .... ...
Max. 229 75 30 33.0 13.8 23.1 20.1 7.1 7.8 3.4 .... ...
_T. b. albicaudatus_, 4; topotypes (Hall, 1930:446)
Av. 211 64 30 32.5 12.9 22.9 18.8 6.6 7.7 2.7 .... ...
Min. 199 55 29 31.7 11.9 21.9 18.2 6.1 7.5 2.6 .... ...
Max. 219 70 32 33.8 13.5 24.0 19.5 6.8 8.0 3.0 .... ...
_T. b. robustus_, 11; topotypes
Av. 199 61 27 30.6 11.7 22.6 18.8 6.4 7.6 2.6 13.9 7.4
Min. 191 56 22 29.0 10.6 21.0 18.1 6.2 7.1 2.0 12.0 7.1
Max. 207 66 29 31.6 12.2 23.6 19.8 6.7 8.0 2.9 14.7 7.9
_T. b. stansburyi_, 5; topotypes
Av. 202 57 28 31.1 12.1 21.9 18.7 6.5 7.7 2.6 14.5 7.4
Min. 195 56 26 29.9 10.6 21.0 17.8 6.2 7.3 2.3 13.4 6.9
Max. 210 63 30 32.7 12.8 22.4 19.5 6.8 8.0 3.0 15.2 7.7
No. 900 (U. U.) _T. b. nesophilus_, 1; topotype
210 65 31 31.2 12.3 23.2 19.3 6.9 8.2 2.2 15.2 7.3
_T. b. minimus_, 2; topotypes
Av. 178 56 25 28.2 10.6 19.7 17.4 6.1 7.0 2.3 13.1 6.7
Min. 175 54 24 28.1 10.4 19.6 17.1 6.1 7.0 2.3 13.0 6.5
Max. 181 58 25 28.2 10.8 19.7 17.7 6.1 7.0 2.3 13.2 6.8
_T. b. contractus_, 6; topotypes
Av. 219 68 30 33.1 12.6 23.3 19.5 6.5 7.8 2.6 15.5 7.1
Min. 208 58 29 32.2 12.0 22.2 18.9 6.4 7.6 2.3 14.2 7.0
Max. 225 73 31 34.7 13.3 25.2 20.6 6.7 8.2 3.2 17.0 7.3
_T. b. levidensis_, 4; topotypes
Av. 205 69 26 30.5 11.1 21.7 17.5 6.6 7.5 2.9 14.0 7.0
Min. 194 61 26 29.3 10.6 21.5 17.3 6.3 7.2 2.8 13.0 6.9
Max. 223 73 27 30.8 11.5 21.9 17.9 6.9 7.8 3.2 14.7 7.2
----------------------------------------------------------------------
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
ALLEN, J. A.
1874. Notes on the mammals of portions of Kansas, Colorado,
Wyoming and Utah, Part IV. On the mammals of the Great
Salt Lake Valley, Utah. Bull. Essex Inst., 6:61-66, 1874.
1893. Descriptions of four new species of _Thomomys_ with
remarks on other species of the genus. Bull. Amer. Mus.
Nat. Hist., 5:47-68, April 28, 1893.
1893. List of mammals collected by Mr. Charles P. Rowley in
the San Juan region of Colorado, New Mexico and Utah,
with descriptions of new species. Bull. Amer. Mus. Nat.
Hist., 5:69-84, April 28, 1893.
1896. List of mammals collected by Mr. Walter W. Granger in
New Mexico, Utah, Wyoming and Nebraska, 1895-1896, with
field notes by the collector. Bull. Amer. Mus. Nat.
Hist., 8:241-258, November 25, 1896.
1905. Mammals from Beaver County, Utah, collected by the
Museum expedition of 1904. Brooklyn Inst. Mus. Sci.
Bull., 1:117-122, March 31, 1905.
BAILEY, VERNON.
1915. Revision of the pocket gophers of the genus
_Thomomys_. N. Amer. Fauna, 39:1-136, pls. 8, 10 figs.,
November 15, 1915.
BARNES, CLAUDE T.
1922. Mammals of Utah. Bull. Univ. Utah, 12 (No. 15):1-176,
30 figs., April, 1922.
1927. Utah mammals. Bull. Univ. Utah, 17 (No. 12):1-183, 32
figs., June, 1927.
BENSON, SETH B.
1935. A biological reconnaissance of Navajo Mountain, Utah.
Univ. California Publ. Zooel., 40:439-455, December 31,
1935.
BURT, WILLIAM H.
1931. A new pocket gopher of the genus _Thomomys_ from Utah.
Proc. Biol. Soc. Washington, 44:37-40, May 8, 1931.
COUES, E.
1875. Abstract of results of a study of the genera _Geomys_
and _Thomomys_. Part III. Zooelogy, in explorations of
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21-2786
* * * * *
Transcriber's Notes
Made minor punctuation corrections, and the following changes:
Page 11: Changed Oquirrah Mountains to Oquirrh Mountains.
Page 15: Changed interptergoid to interpterygoid.
Page 25: Changed acccounts to accounts.
Page 30: Changed distiguished to distinguished.
Page 54: Changed hpyothesis to hypothesis.
Page 57: Changed under parts to underparts.
Formatted Tables to fit width guidelines.
Bold text is shown within =equal signs=.
Italicized text is shown within _underscores_.