4
RODENTS: PICTORIAL KEY TO SOME COMMON UNITED STATES GENERA Harold Georee Scott and Margery R. Borom . Ir---------------------------------------------,jr--------------------------.I ..... t." almost naked, ...... tail almost naked, aDoulate,.. ...... tail lorze (9-17"10IIfI) small (5-7 "Ioog) tailloog tail short bair short hair long I ..... tail bones looger tban 1/2 body lorze (about 16 "Ioog) small (7·9"loDg) NeolOma WOOf) RATS EmlmyKIII. WHITE-FOOTED MICE ..... tail booes lODger tban body .... tail buSh) tail DOt bushy TREE SQUIRRELS Qip'!!domy!. KANGAROO RATS . j ..... t.,1 bone. shorter than 1/2 body froot (eet enlarged (root (eet not enlAlJ!ed MEAOOW MICE ..... tail bones sborter than body .......... large (about 15 "long) small (about 9" long) very large (about 26"loog) Citellus GROUND SQUIRRELS Tamias-Easl EUl!mias-Wesl CHlPMJiNKS ll!m!m WooUCtll:CKS (X)

Ir---------------------------------------------,jrPRAIRIE DOGS: PICTORIAL KEY TO COMMON NORTH .AMERICAN SPECIES (Cynomys) harry Weinburgh and Margery R. Borom Tail black-tipped,

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Page 1: Ir---------------------------------------------,jrPRAIRIE DOGS: PICTORIAL KEY TO COMMON NORTH .AMERICAN SPECIES (Cynomys) harry Weinburgh and Margery R. Borom Tail black-tipped,

RODENTS: PICTORIAL KEY TO SOME COMMON UNITED STATES GENERA Harold Georee Scott and Margery R. Borom

. Ir---------------------------------------------,jr--------------------------.I ..... t." almost naked, ac:aly~ ...... tail almost naked, aDoulate,.. ...... tail hairy~

lorze (9-17"10IIfI) small (5-7 "Ioog) tailloog tail short bair short hair long

I ..... tail bones looger tban 1/2 body ~

lorze (about 16 "Ioog) small (7·9"loDg)

NeolOma WOOf) RATS

EmlmyKIII. WHITE-FOOTED MICE

..... tail booes lODger tban body .... tail buSh) tail DOt bushy

~ TREE SQUIRRELS

Qip'!!domy!. KANGAROO RATS

. j ..... t.,1 bone. shorter than 1/2 body ~

froot (eet enlarged (root (eet not enlAlJ!ed

~ MEAOOW MICE

..... tail bones sborter than body -.::~-----------.......... large (about 15 "long) small (about 9" long) very large (about 26"loog)

Citellus GROUND SQUIRRELS

Tamias-Easl EUl!mias-Wesl CHlPMJiNKS

ll!m!m WooUCtll:CKS

(X)

Page 2: Ir---------------------------------------------,jrPRAIRIE DOGS: PICTORIAL KEY TO COMMON NORTH .AMERICAN SPECIES (Cynomys) harry Weinburgh and Margery R. Borom Tail black-tipped,

LONGER THAN HEAD + BODY

TAIL

SHORTER THAN HEAD + BODY

DOMESTIC RODENT FIELD IDENTIFICATION Robert .Z. Brown

ROOF RAT Rattus rattus

UGH SLENDER LARGE POINTED

( ( LARGE

JSE BODY

E~ EYE

l ) SMALL HEAVY

THICK SMALL BLUNT

NORWAY RAT Rattus norvegicus SCALE IN INCHES

;- - 2 ;

YOUNG RAT

LARGE LARGE

/ \ FEET HEAD

\ I S LL SMALL

HOUSE MOUSE Mus musculus

Page 3: Ir---------------------------------------------,jrPRAIRIE DOGS: PICTORIAL KEY TO COMMON NORTH .AMERICAN SPECIES (Cynomys) harry Weinburgh and Margery R. Borom Tail black-tipped,

DOMESTIC RODENTS AND COCKROACHES: PICTORIAL KEY TO DROPPINGS Harold Georle Scott and Marlery R. Borom

lenRth over I 13-incb· · lenath under 1/4-inch'

ree tan RU lar, blun t elongate, pointed

RGIlUS norve,iclIs Rauus ,tttlus NORWAY RAT ROOF RAT

elongate, pointed rect.n~ul.r, blun.t with ridges

ovoid, pointed with ridllU

without rid,es length about 1/4-inch

Mus musculus

HOUSE MOUSE

lenll,b about I/S-inch

P~rip""J.ttJ .", .. ,i",.". AMERICAN COCKROACH

Peri,I.,..,,, "usua/asi".

AUSTRALIAN COCKROACH

witb ridRes length about 1/ 16-inch

B/alel/II g'''''Gflictl.

GERMAN COCKROACH

lenll,h abou, 1/16-inch

8 1./1. o,ioNt.li. - ORIENTAL COCKROACi or

Po,ip/ ••• t. /_li8in ... - SMOKY BROWN COCKROACH

lenll,h about 1/16-inch

P .. ,ipl"" .. UJ .,.,JI" ... BROWN COCKROACH

length about 1/32-ioch

Sup.llt, sllpell.cIUiu",

BROWN-BANDED COCKROACH

'All charac,eristks for average, dry, adulr droppings. S,udy groups, not indi.idual droppinllS,

183.

Page 4: Ir---------------------------------------------,jrPRAIRIE DOGS: PICTORIAL KEY TO COMMON NORTH .AMERICAN SPECIES (Cynomys) harry Weinburgh and Margery R. Borom Tail black-tipped,

PRAIRIE DOGS: PICTORIAL KEY TO COMMON NORTH .AMERICAN SPECIES (Cynomys)

harry Weinburgh and Margery R. Borom

Tail black-tipped, long, more than 1/ 5 lotalle.81h (72-115 mm.)

Black on rail cov~rin, most of distal half MEXICO ONLY

C. "'~JCicG'''u

Terminal half tail .hile without dark center

Summer color reddish (cinnamon or clay color mixed with .buff); darker on rump

CENTI(Al VALLEYS OF UTAH

UTAH PRAIRIE DOG £..p.'flitl~".s

Tail white-tipped, short, less than 1/ 5 lot.1 le.81h (40-68 mm.)

Black on tan confined to distal .chird TEXAS TO SASI.ATCHEWAN

Terminal half, tail with darle: eenler (8ray)

GUNNISON PRAIRIE DOG

Summer color At.yish (pinkish buff mixed with hlack); dark patch on cheek and above eye

WYOWING. COLORADO, AND EASTERN UTAH

IIHITE-TAILED PRAIRIE DOG C. I~~c .. r~$

.184