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)

•

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

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.

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