MURID®—ARVICOLINA—ARVICOLA RIPARIUS. 
examined from the United States east of the Mississippi, with measurements of many—Continued. 
~ |Tailtoend| E } ss 
f a. ot— = s 
2B Date. Locality. Collected by— |= = sail see aes Remarks. 
Ee Bers [ote || feel 
a \a dole |e le he 
Uf Gy | aes nee eRe es Nichols; N. ¥-..-=-- R. Howell. ...-- 4.35 | 1.80 | 2.20 | 0.35 | 0.80 
1666 ¢ | Aug. —, 1856| Beesley’s Point, N.J.| S. F. Baird ...-- 5.00 | 1.80 | 2.00 | 0.42 | 0.90 
g545 Sept. —, 1856 | Carlisle, Pa .........|....do .. 4.50 | 1.45 | 1.60 0.75 
SES leas | lessees cerecsed lasccec CW eressaansads4 --do Say Nee heoten | Saeee 0.79 
Sifite || 188 | eeseeeechensed eee COE anse sens eeC0y seman S540) oeeeee| ene maa | eee Head 1.20; young. 
ee Feb. 26, 1852] ...... (imeem ates -.do. 4.50 | 1.70 | 1.80 |..... 0. 20 
is; |--- | Feb. 26, 1852|...... cit neste eenars Sido\e sacs saz BED os in| Pere eal ese ae eee 
fit ||saa0| peeceece bers ae feeeoce (UT Sc eee spensde= ~xiieocbasettc: Phot cece deca Becticny] nares Suckling. 
2257 o | Sept. 11,1856} ...... dorstce scons oe cok eee ctaces= 3.60} 1.40 | 1.60 --- | 0.78 
285 05 |PpGcaoseA tase ie nense Ose eee sere Ati eeboe pene 3.75 | 1.40 | 1.55 | 0.35 | 0.78 
2250 | ¢ | Nov. —, 1856 ]...... 0) vec seen ones beesdOpe nes tes SeA0\ eee |e eres |ece x20 || Says 
CT iy (eo |saen) Haossceens ros Williamsport, Pa .-.| I. McMinn ...-.. 5.50 | 1.60 | 1.80 | 0.40 | 0.81 
2168 |... 5.50 | 1.60 | 1.90 | 0.40 | 0.82 | | Very large and griz- 
2169 5.75 | 1.85 | 2.00 | 0.37 | 0.90 zly specimens. 
aes 4.75 | 1.65 | 1.90 |...-. | 0.76 
ots Senda) WicOi ewe 0.34 | 0.72 
4743 ERD U Ye a es 0.30 | 0.72 | Labeled “nasuta”. 
4720 = 5.00 | 1.80 | 2.05] 0.40] 0.85] do, 
Sg seo pss e ae set = a= Philadelphia, Pa ....|....do .....--.-- See oleae 0.37 | 0.£0 | Type of riparius. 
AG Doe erat | nea sae eraees Pennsylvania ..---- RECO aimclelcioarerte 4.00 | 1.40} 1.60 | 0.36 | 0.82 
PEE Neer ee aaeseecessne| |eeece Oe aeeseeernc ess SAG tL SbR6 5.10} 1.50 | 1.70 | 0.45 | 0.92 
Gino |leso [Lecenseteect! | SaaS Oy soeete been J.K. Townsend } 4,25 | 1.30 | 1.50 0.82 | Labeled “xanthogna- 
tha”. 
lode ees | ees eee do... Ee salle oy wee ana 4.60] 1.20] 1.35] ..-. | 0.79]. ao, 
4725 S| pees aaa Michigan ....--..-. J. LeConto.. --- 4.50 2 beetise 0.39 | 0.80 
Le eis | ae eoneesemcre Cleveland, Ohio. ..-.) Dr. J.P. Kirtlane) 5.00} 1.55 | 1.80 | 0.35 | 0.75 | Labeled “ nasuta’’. 
folk Peace se Cano Racine, Wis .-..-.-- Dro PR. Hoy, =5) ===. Suckling. 
oe DiyinFeton Co; Mo bey d0e. coe ee = Ne ae Peed _. do. 
Sa Saint Louis, Mo.... | Dr.G. Engelmann) ---. | ----. al see Se Ie Pe doe 
$340 |....| Nov. —, 1855] Clarke County, Va... Neisley-- | 4.00 | 1.30 | 1.45 | 0.35 | 0.80] Head 1.20. 
--- | Hillsborough, N.C..| M. A. Curtis -- | 4.(0 | 1.50 | 1.70 0.78 
20) Secccooaseao ot ease oleae oc nee Ce wee too saa 4.75 | 1.60 | 1.80 0,79 
ec) Ee ee ee Prairie Mer Rouge, | J. Fairie .---..-- 3.50 | 1.30 | 1.40 0.77 
La. 
JAE Bal (ae ee oe eee dori 2 Te eee 4.00} 1.10} 1.10] 0.37 | 0.82 
AGOSI" heen oer. Sacees- 5-2 EasternUnitedStates| W. Cooper .----. 5.50 | 1.55 | 1.75 | 0.40 | 0.80 | Labeled ‘‘rufescens"’. 
4713 | -...| —— —,1846]...... Ce Rais Dr. T. M. Brewer} 5. 00 Very gray, like “brew- 
eri”; labeled “ na- 
suta”’. 
ONO | BRE ee Boeaeee= ect eseion Gotccescexc me Major LeConte.-| -.- ans] eenin=e Young; labeled “ onet- 
da”. 
0.35 | 0.78 
0.35 | 0.76 
0.38 | 0. 83 
0. 35°] 0.78 
0.38 | 0.85 
0.33 | 0.84 
SAVORED petite sane een areca meee ren ans cee seiccccosscmsce 1509) haces 0. 80 | 
Minimum 1.10 - | 0.72 Hi Gross. 
Maximum 2000) caaeine| nsec 0.92 
167 
TABLE XLII.—List of specimens (additional to those of Tables XX XIX, XL, and XLT) of ARVICOLA RIPARIUS 
