=Thomomys talpoides moorei= Goldman_The Pocket Gophers (Genus Thomomys) of Utah University of Kansas Publications, Museum of Natural History, Vol. 1 No. 1

_Thomomys fossor moorei_ Goldman, Journ. Washington Acad.

Sci., 28:335, July 15, 1938.

_Thomomys talpoides moorei_ Goldman, Journ. Mamm., 20:234,

May 14, 1939.

_Type._--Male, adult, skin and skull, No. 248222, U. S. National Museum

(Biological Surveys Collection); 1 mi. S Fairview, 6,000 ft., Sanpete

County, Utah; February 19, 1928; collected by A. W. Moore; X-catalogue

number 24799 (after Goldman, type not seen).

_Range._--Wasatch Plateau in Sanpete, Utah, Carbon and Emery counties,

and in Wasatch Mountains south of Spanish Fork Canyon.

_Diagnosis._--Size medium (see measurements). Color: Upper parts

between Cinnamon and Sayal Brown, with mixture of black hairs, grading

through Cinnamon on sides and flanks to Pale Pinkish Buff on

underparts, clearest on inguinal and pectoral regions; nose and cheeks

dusky; postauricular patches medium in size and black; ears black; chin

buffy white; front and hind feet white; tail mostly white with brownish

hairs on dorsal surface. Skull: Large, robust; nasals long and deeply

emarginate on posterior ends, and dilated distally; zygomatic arches

robust and widely spreading; zygomatic processes of maxillae heavy;

interparietal comparatively small, but always wider than long;

extension of premaxillae posterior to nasals short; tympanic bullae

moderate in size, but markedly inflated ventrally; pterygoid hamulae

long; interpterygoid space narrowly V-shaped; upper incisors long and

moderately recurved; molariform teeth light.

_Comparisons._--Topotypes of _moorei_ differ from topotypes and near

topotypes of _Thomomys talpoides uinta_ as follows: Size slightly

larger. Color: Upper parts and sides lighter; tail lighter;

postauricular patches larger and darker; ears more pointed, smaller and

darker. Skull: Larger, heavier and more massive; nasals longer, but

deeply emarginate posteriorly as in _uinta_; rostrum wider and longer;

zygomatic arches heavier and more angular; zygomatic processes of

maxillae heavier; interparietal generally smaller and shorter;

braincase wider; tympanic bullae more inflated ventrally;

interpterygoid space more narrowly V-shaped; upper incisors longer, but

not as procumbent; molariform teeth smaller.

Topotypes of _moorei_ can be distinguished from those of _Thomomys

talpoides oquirrhensis_ as follows: Size slightly larger; tail longer;

ears larger, less pointed. Color: Lighter throughout; postauricular

patches larger. Skull: More ridged and angular; nasals narrower

posteriorly, but more dilated distally; posterior ends of nasals more

deeply emarginate (while shallowly emarginate in _oquirrhensis_, they

tend to be somewhat rounded); rostrum narrower; extension of

premaxillae posterior to nasals greater; least interorbital breadth

less; zygomatic arches more angular and widely spreading; zygomatic

processes of maxillae heavier; interparietal smaller; tympanic bullae

larger and more inflated ventrally; upper incisors generally longer.

The characters that distinguish _moorei_ from _Thomomys talpoides

parowanensis_ are: Color: Lighter throughout. Skull: Broader, more

angular and more nearly flat; zygomatic arches more widely spreading;

zygomatic processes of maxillae heavier; posterior ends of nasals

emarginate rather than rounded; upper incisors longer.

For comparisons of _moorei_ with _Thomomys talpoides levis_ and

_wasatchensis_ see accounts of these forms.

_Remarks._--Specimens from Colton, show intergradation between

_moorei_, _uinta_ and _wasatchensis_, but are referable to _moorei_ in

the majority of characters. Specimens from Mount Nebo, and the mouth of

Reddicks Canyon, in the Wasatch and San Pitch mountains, respectively,

are intergrades between _moorei_ and _wasatchensis_, but are referable

to _moorei_.

That part of the Wasatch Mountains south of Spanish Fork Canyon is

inhabited by pocket gophers that are intergrades between _moorei_ and

_wasatchensis_, but the cranial details show them to be referable to

_moorei_. The range here ascribed to _moorei_ consists of the Wasatch

Plateau to the east of Sanpete Valley, the San Pitch Mountains and the

southern part of the Wasatch Mountains. The type locality of _moorei_

is situated in the southern end of a high valley that separates the

Wasatch Plateau from the San Pitch and Wasatch mountains. Topotypical

animals are larger and have more ridged, angular skulls than those from

the mountains.

_Specimens examined._--Total, 48, distributed as follows:

_Utah County_: Near Payson Lake, 1 (R. H.); Mt. Nebo, 25 mi.

SE Payson, 10,000 ft., 20; Colton, 8 (B. Y. U.). _Sanpete

County_: 1 mi. S Fairview, 6,000 ft., 12 (U. S. N. M.).

_Juab County_: Mouth of Reddicks Canyon, Wales Mountain (=

San Pitch Mountains), 7,500 ft., 5. _Emery County_: Lake

Creek, 11 mi. E Mt. Pleasant, 2 (C. M.).

_Additional records._--_Sanpete County_: Ephraim, 5 (see

Goldman, 1938:336).

=Thomomys talpoides fossor= Allen

_Thomomys fossor_ Allen, Bull. Amer. Mus. Nat. Hist., 5:51,

April 28, 1893; Bailey, N. Amer. Fauna, 39:111, November 15,

1915; Barnes, Bull. Univ. Utah, 12 (No. 15):85, April, 1922;

Bull. Univ. Utah, 17 (No. 12):102, June, 1927; Hall, Univ.

California Publ. Zooel., 37:4, April 10, 1931.

_Thomomys talpoides fossor_ Goldman, Journ. Mamm., 20:234,

May 14, 1939.

_Type._--Male, adult, skin and skull, No. 5240/4120, American Museum of

Natural History; Florida, 7,200 ft., La Plata County, Colorado; June

25, 1892; collected by Charles P. Rowley (after Allen, type not seen).

_Range._--In the mountains of San Juan and Grand counties, east of the

Colorado and Green rivers.

_Diagnosis._--Size medium (see measurements). Color: Upper parts

Dresden Brown, grading over sides to Pale Buff on underparts; chin

white; ears small, pointed, with deeply pigmented pinnae; postauricular

patches grayish black; nose dusky. Skull: Long and narrow; nasals long,

rounded proximally and usually simple distally; rostrum long;

interparietal triangular; tympanic bullae large, and well inflated

ventrally; basioccipital narrow; palate narrow; palatal pits shallow;

dentition light.

_Comparisons._--Near topotypes of _fossor_ can be distinguished from

topotypes of _Thomomys talpoides ocius_ as follows: Size larger

throughout. Color: Darker throughout, being dark brown as opposed to

grayish. Skull: Longer and narrower; nasals and rostrum longer;

extension of supraoccipital posterior to lambdoidal suture markedly

less; tympanic bullae markedly smaller; upper incisors longer and not

as strongly recurved.

Among the races of _Thomomys talpoides_ occurring in Utah, _fossor_

most closely resembles _Thomomys talpoides uinta_ in color and size,

but differs from it as follows: Ears smaller, more pointed and with

more darkly pigmented pinnae. Skull: Longer, narrower and weaker;

rostrum longer; nasals longer, and rounded proximally as opposed to

markedly emarginate; interparietal triangular instead of roughly

pentagonal; tympanic bullae larger and more inflated ventrally;

basioccipital narrower; palate narrower, palatal pits shallower;

dentition lighter.

_Remarks._--Bailey (1915:111) remarked that _fossor_ was one form that

held its distinctive characters over a wide range. At that time, its

range was understood to include practically all of the mountainous

parts of Colorado, Utah as far west as the central part of the state,

and parts of New Mexico, Arizona and Wyoming. Subsequently three new

forms have been named from central Utah, (Goldman 1938:334-337) thereby

showing variation to be much more prevalent than formerly supposed.

The range of _fossor_ in Utah, as now understood, is limited to the

mountainous parts of the state south and east of the Colorado and Green

rivers in Grand and San Juan counties.

The Utah specimens are not typical. At first glance some differences

are noted in the premaxillae and nasals. Four specimens in the

collections of the Museum of Natural History, University of Kansas,

three from 3 miles east of Creede, Mineral County, and one from 10

miles east of Lake City, Hinsdale County, Colorado, both of which lie

north and east of the type locality of _fossor_ show the same

characters as the Utah specimens.

Eight specimens from Oak Spring are intergrades between _fossor_ and

_ocius_. In size and color they are like _fossor_, but the skulls are

intermediate. Because the animals are more like _fossor_ in the

majority of characters, they are here referred to that race.

As a result of these studies and due to the paucity of specimens from

Utah, it is advisable, for the present, to refer all these Utah animals

to _fossor_. Additional specimens may reveal characters that will merit

the separation of the Utah animals from typical _fossor_; a desertlike

area unfavorable to _Thomomys_ exists between the type locality and

eastern Utah.

_Specimens examined._--Total, 21, distributed as follows:

_Grand County_: Oak Spring, Middle Fork Willow Creek, 15 mi.

N Thompson, 8 (C. M.); La Sal Mountains, 1 (U. S. N. M.);

Warner Ranger Station, La Sal Mountains, 3 (B. Y. U.). _San

Juan County_: Geyser Pass, 18 mi. SE Moab, La Sal Mountains,

3 (1, B. Y. U.; 2, C. M.); 5 mi. W Monticello, 1 (C. M.);

Cooley Pass, 8 mi. W Monticello, 2 (C. M.); Joshua Flat, Elk

Ridge, 8,300 ft., 3 (M. V. Z.).

=Thomomys talpoides parowanensis= Goldman

_Thomomys fossor parowanensis_ Goldman, Journ. Washington

Acad. Sci., 28:334, July 15, 1938.

_Thomomys talpoides parowanensis_ Goldman, Journ. Mamm.,

20:234, May 14, 1939; Long, Journ. Mamm., 21:176, May 14,

1940.

_Thomomys fossor_ Bailey, N. Amer. Fauna, 39:112, November

15, 1915; Barnes, Bull. Univ. Utah, 12 (No. 15):85, April,

1922; Bull. Univ. Utah, 17 (No. 12):102, June, 1927; Hall,

Univ. California Publ. Zooel., 37:4, April 10, 1931;

Presnall, Zion-Bryce Mus. Bull., 2:14, January, 1938;

Tanner, Great Basin Nat., 1:111, 1940.

_Type._--Male, adult, skin and skull, No. 158072, U. S. National Museum

(Biological Surveys Collection); Brian Head, Parowan Mountains, 11,000

ft., Iron County, Utah; September 8, 1908; collected by W. H. Osgood;

original number 3483 (after Goldman, type not seen).

_Range._--High mountains of eastern Iron and Beaver counties, and

western Kane and Garfield counties.

_Diagnosis._--Size medium (see measurements). Color: Upper parts Sayal

Brown moderately mixed with black, lightest on head; sides lightly

washed with Buff; underparts Pinkish Buff, clearest on inguinal and

pectoral regions; nose and cheeks dusky; postauricular patches large

and black; front feet, hind feet and distal half of tail white. Skull:

Long and fairly slender; zygomatic arches not widely spreading; nasals

long; rostrum long and slender; posterior ends of nasals truncate or

moderately emarginate; extension of premaxillae posterior to nasals

usually short; tympanic bullae relatively small; upper incisors long

and narrow; molariform teeth large.

_Comparisons._--Compared with _Thomomys talpoides kaibabensis_,

_parowanensis_ differs as follows: Size smaller. Skull: Shorter; nasals

shorter; zygomatic breadth less; nasals truncate or shallowly

emarginate posteriorly as opposed to rounded; upper incisors narrower.

Topotypes of _parowanensis_ differ from topotypes and near topotypes of

_Thomomys talpoides uinta_ as follows: Size larger. Color: Usually

lighter; postauricular patches larger and darker; ears small with

pinnae deeply pigmented as opposed to large and lightly pigmented.

Skull: Larger; zygomatic arches more widely spreading; nasals longer;

rostrum longer; posterior ends of nasals truncate or shallowly

emarginate as opposed to deeply emarginate; sides of zygomatic arches

nearly parallel and not so divergent posteriorly; interparietal larger

and less quadrangular; extension of premaxillae posterior to nasals

less; upper incisors less procumbent; molariform teeth larger.

Among named races of _Thomomys talpoides_, _parowanensis_ most closely

resembles _levis_, the race nearest geographically to the east, but

differs from _levis_ as follows: Size larger. Skull: Longer and wider;

rostrum and nasals longer; interparietal quadrangular as opposed to

roughly elliptical; upper incisors longer.

For comparisons with _Thomomys talpoides moorei_ and _wasatchensis_ see

accounts of those forms.

_Remarks._--The mountains of south central Utah are inhabited by pocket

gophers that have been designated as _Thomomys talpoides parowanensis_

and _T. t. levis_ by Goldman (1938:334, 336). They are nearly

indistinguishable in color and each is variable in cranial details. The

diagnostic characters of each form occasionally appear, in varying

degrees, throughout the range of the other. The Sevier River Valley

separates the ranges ascribed to these two forms. This valley is

inhabited by pocket gophers that belong to a different species,

_Thomomys bottae_. The ranges of these two races of _talpoides_

converge southward at the headwaters of the Sevier River. Specimens of

_parowanensis_ from the northern limits of its range from the Beaver

Mountains in eastern Beaver County and those of _levis_ from the

northern limits of its range in the Fish Lake Mountains are readily

distinguishable from each other. As the ranges converge to the

southward, there is progressively more intergradation. The type

locality of _parowanensis_ is located in the southern part of its

range, while that of _levis_ is in the extreme northern part of its

range. Therefore, due to the convergence of the two ranges at the

south, the specimens from localities near the type locality of

_parowanensis_ show the greatest amount of intergradation, if we regard

specimens of _parowanensis_ from the type locality as typical of the

race. Four specimens from Webster Flat, sixteen miles east of Cedar

City, Iron County, and three from Duck Creek, Cedar Mountains, Kane

County could equally well be assigned to either _levis_ or

_parowanensis_.

_Specimens examined._--Total, 24, distributed as follows:

_Beaver County_: Britts Meadows, Beaver Mountains, 8,500

ft., 7 (3, M. V. Z.; 2, U. S. N. M.; 2, C. M.); Puffer Lake,

Beaver Mountains, 1 (U. S. N. M.); Kents Lake, Beaver

Mountains, 1 (R. H.). _Iron County_: Lava Beds, 3-1/2 mi. SW

Panquitch Lake, 1 (C. M.); Brian Head, Parowan Mountains, 2

(1, U. S. N. M.; 1, C. M.); Webster Flat, 16 mi. E Cedar

City, 4; Bear Valley, 2 mi. E B. V. Ranger Station, 1 (R.

H.). _Garfield County_: 1/4 mi. W Sunset Point, Bryce

National Park, 8,000 ft., 1 (M. V. Z.). _Kane County_:

Navajo Lake, 3 (R. H.); Duck Creek, Cedar Mountains, 9,000

ft., 3 (1, R. H.).

_Additional records._--_Garfield County_: Panquitch Lake, 1

(see Goldman 1938:335). _Iron County_: Beaver Mountains, 9

(see Bailey, 1915:112); Buckskin Valley, 1 (see Goldman,

1938:335).

=Thomomys talpoides levis= Goldman

_Thomomys fossor levis_ Goldman, Journ. Washington Acad.

Sci., 28:336, July 15, 1938.

_Thomomys talpoides levis_ Goldman, Journ. Mamm., 20:234,

May 14, 1939.

_Thomomys fossor_ Bailey, N. Amer. Fauna, 39:112, November

15, 1915; Barnes, Bull. Univ. Utah, 12 (No. 15):85, April,

1922; Bull. Univ. Utah, 17 (No. 12):102, June, 1927.

_Type._--Female, adult, skin and skull, No. 158079, U. S. National

Museum (Biological Surveys Collection); Seven Mile Flat, 5 mi. N Fish

Lake, Fish Lake Plateau, 10,000 ft., Sevier County, Utah; October 1,

1908; collected by W. H. Osgood; original number 3616 (after Goldman,

type not seen).

_Range._--Fish Lake Mountains in Sevier County south into Garfield

County, Utah.

_Diagnosis._--Size medium (see measurements). Color: Upper parts near

Sayal Brown, moderately mixed with black, darkest on head and middorsal

region, grading to Cinnamon Buff on sides and flanks; underparts

Pinkish Buff, clearest on inguinal and pectoral regions; chin, cheeks

and nose dusky; postauricular patches large and black; front feet, hind

feet and distal half of tail white; ears small and deeply pigmented.

Skull: Slender and weak; zygomatic arches not widely spreading;

posterior ends of nasals rounded; nasals moderately long and narrow;

rostrum long and narrow; extension of premaxillae posterior to nasals

short; interparietal usually much wider than long; pterygoid hamulae

ridged; interpterygoid space usually narrowly V-shaped; upper incisors

short.

_Comparisons._--Compared with topotypes of _Thomomys talpoides moorei_,

_levis_ differs as follows: Size smaller; tail shorter. Color: Darker

throughout, especially on dorsal surface due to more black of the

underfur; underparts deeper buff. Skull: Narrower, less massive;

zygomatic processes of maxillae weaker and not as widely spreading;

interparietal generally wider; extension of premaxillae posterior to

nasals less; posterior ends of nasals rounded rather than emarginate;

upper incisors shorter, less procumbent.

Topotypes of _levis_ differ from near topotypes of _Thomomys talpoides

uinta_ as follows: Size larger. Color: Upper parts slightly darker;

postauricular patches much darker and larger; ears small and deeply

pigmented as opposed to large and lightly pigmented; tail darker all

around at base, with white part more extensive and with fewer

buff-colored hairs. Skull: More convex dorsally; zygomatic arches more

widely spreading and angular; nasals longer; rostrum longer;

interparietal wider and more elliptical; posterior ends of nasals

rounded as opposed to emarginate; extension of premaxillae posterior to

nasals less; pterygoid hamulae more ridged; interpterygoid space more

narrowly V-shaped; upper incisors shorter and less procumbent.

Topotypes of _levis_ can be distinguished from those of _Thomomys

talpoides kaibabensis_ by markedly smaller measurements.

For comparisons with _Thomomys talpoides parowanensis_ and

_wasatchensis_ see accounts of those forms.

_Remarks._--Specimens from the Escalante Mountains and the Aquarius

Plateau are not typical. They are of approximately the same color as

_levis_, but are larger than _levis_ and have cranial details that

indicate intergradation with _kaibabensis_ to the south. They resemble

_kaibabensis_ in large size, long nasals and widely spreading zygomatic

arches, but are like _levis_ in shape of the interparietal, extension

of premaxillae posterior to the nasals, rounded posterior ends of

nasals, ridged pterygoid hamulae and relatively short upper incisors.

Additional material from these regions may prove these animals to merit

separation and naming.

_Specimens examined._--Total, 15, distributed as follows:

_Sevier County_: Seven Mile Flat, 5 mi. N Fish Lake, Fish

Lake Plateau, 10,000 ft., 2 (U. S. N. M.); Fish Lake

Experiment Station, 2 (U. S. A. C). _Garfield County_: Posy

Lake, Aquarius Plateau, 2 (B. Y. U.); 18 mi. N Escalante,

9,500 ft., 3; Steep Creek, Boulder-Teasdale Road, Boulder

Mountain, 4 (B. Y. U.); Summit Birch Creek, Escalante

Mountains, 2 (B. Y. U.).

MEASUREMENTS OF ADULT MALES OF THOMOMYS

(In millimeters)

======================================================================

Total length

| Length of tail

| | Length of hind foot

| | | Basilar length

| | | | Length of nasals

----------------------------------------------------------------------

_T. t. gracilis_, 4; topotypes

Av. 204 53 28 31.5 13.4 21.7 18.3 6.4 7.6 1.3 15.4 7.2

Min. 194 47 27 30.3 12.9 21.1 17.8 6.3 7.3 1.0 14.7 6.7

Max. 210 63 28 33.5 14.2 22.0 19.0 6.5 7.9 1.7 16.4 7.5

_T. t. oquirrhensis_, 4; topotypes

Av. 209 58 28 32.2 13.9 21.9 19.0 6.9 7.6 0.9 15.8 7.7

Min. 197 55 28 31.9 13.7 21.4 18.5 6.7 7.2 0.6 15.5 7.5

Max. 216 60 29 32.8 14.3 22.8 19.5 7.1 7.9 1.0 16.2 7.9

_T. t. wasatchensis_, 10; topotypes

Av. 221 67 28 31.3 13.4 21.5 18.9 6.5 7.4 1.1 15.1 7.4

Min. 204 60 26 27.4 11.6 19.1 17.2 6.0 6.6 0.9 14.0 6.7

Max. 237 75 31 34.5 15.2 23.7 20.4 7.3 8.0 2.0 16.5 8.2

_T. t. uinta_, 5; SW slope Bald Peak, Uinta Mts.

Av. 199 51 27 31.5 13.1 21.7 19.4 6.3 7.6 1.1 15.2 7.4

Min. 185 47 26 29.6 12.1 20.3 19.0 5.7 7.3 0.7 13.5 7.2

Max. 208 54 28 32.8 13.8 22.2 20.0 6.5 7.8 1.4 15.6 7.6

_T. t. moorei_, 7; topotypes

Av. 216 65 29 32.4 13.9 22.9 19.2 6.5 7.7 1.5 15.9 7.3

Min. 203 52 27 31.3 13.0 21.5 18.4 6.0 7.3 0.9 14.8 6.7

Max. 236 72 31 34.7 14.5 23.7 20.0 7.0 8.2 2.0 16.3 7.7

_T. t. fossor_, 8; Cascade Creek, La Plata Co., Colo.

Av. 215 61 29 31.7 13.2 21.2 18.7 5.9 7.5 0.6 15.5 7.1

Min. 202 54 27 30.5 12.0 20.5 18.2 5.5 7.0 0.0 14.5 6.9

Max. 228 70 30 33.0 14.4 23.5 19.9 6.3 7.9 1.1 16.9 7.4

_T. t. ravus_, 3; topotypes

Av. 248 73 30 35.2 14.6 24.8 21.4 6.3 8.3 2.4 17.1 8.2

Min. 244 70 29 34.5 14.3 23.6 20.5 6.0 8.2 2.2 16.7 8.1

Max. 253 74 30 35.9 15.1 25.7 22.5 6.7 8.4 2.7 17.5 8.5

No. 55270 (U. S. N. M.) _T. t. pygmaeus_, 1; topotype

165 40 20 24.6 10.2 16.3 15.1 5.4 5.9 0.7 12.0 5.7

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

----------------------------------------------------------------------

_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

_T. t. fossor_, 4; Cascade Creek, La Plata Co., Colo.

Av. 215 57 29 32.6 14.2 22.0 19.0 6.0 7.5 0.7 16.2 7.3

Min. 204 51 28 31.3 13.6 21.5 18.0 5.7 7.1 0.5 15.9 7.0

Max. 223 63 30 34.0 14.8 22.9 19.6 6.3 7.8 1.0 16.3 7.5

No. 13684 (C. M.) _T. t. ravus_, 1; topotype

241 71 28 35.7 14.5 24.4 21.5 6.2 7.8 2.7 17.1 8.1

No. 178868 (U. S. N. M.) _T. t. pygmaeus_, 1; Fossil, Wyo.

167 52 20 24.0 10.2 16.5 14.8 5.2 5.6 0.7 11.1 5.8

_T. t. ocius_, 3; topotypes

Av. 201 60 25 30.0 13.5 20.5 17.9 6.2 7.2 0.8 15.0 7.4

Min 196 57 25 29.9 13.0 19.9 17.5 6.1 7.1 0.5 14.7 7.3

Max. 205 64 25 30.1 14.0 21.5 18.6 6.3 7.3 1.0 15.3 7.5

_T. t. parowanensis_, 4; Britts Meadow, Beaver Mountains

Av. 221 58 29 33.2 14.5 22.8 19.0 6.0 7.8 0.9 15.4 7.3

Min. 207 50 28 30.5 12.8 22.7 18.6 5.8 7.4 0.5 14.7 7.0

Max. 240 66 30 34.8 15.5 23.0 19.6 6.2 8.1 1.5 17.8 7.7

The Pocket Gophers (Genus Thomomys) of Utah University of Kansas Publications, Museum of Natural History, Vol. 1 No. 1 · 第 2 / 8 段