366 MONOGRAPHS OF NORTH AMERICAN RODENTIA. 
pelage very much worn and the colors faded, seems to unquestionably belong 
to this species. 
GOGRAPHICAL DISTRIBUTION.—The present species is said to be unknown 
in the Gulf States to the eastward or northward of Alabama. Audubon and 
Bachman state that it is “numerous in all the swamps of the western part 
of that State, is still more abundant in the State of Mississippi, and in the 
lower part of Louisiana”, and that it was also obtained in Texas by Douglass 
and Mr. J. W. Audubon. Professor Baird considers doubtful its occurrence 
“in the southern part of Texas”. Dr. Lincecum, however, calls it “a widely- 
distributed species”, and says “it abounds in the canebrakes of Alabama, 
Mississippi, Louisiana, Arkansas, and Texas”, where it is found “on all the 
water-courses, even on the little branches”, but “rarely on the uplands”. The 
specimens in the present collection from Southeastern Mexico, as far south 
even as Merida, Yucatan, would seem to render probable its Decunrence in 
the lowlands bordering the Gulf of Mexico from Alabama to Yucatan. It 
also occurs as far northward as Southern Illinois. Of this fact I am assured 
by Mr. E. W. Nelson, who writes me respecting it as follows: “Z. aquaticus 
is abundant in the canebrakes near Cairo and Mound City, Illinois, and 
doubtless extends as far up the Ohio as the mouth of the Wabash, at least. 
...... I]t extends up the Mississippi as far as Cape Girardeau, to my knowl- 
edge, and probably still further in suitable situations. It is so common in 
the canebrakes near Mound City that a hunter informed me he had often, 
during the winter months, shot as many in a day as he could carry.” Pro- 
fessor Baird also says, ‘‘ Mr. Kennicott mentions a ‘Swamp Rabbit’ as occur- 
ring in the wet grounds of New Madrid, Missouri.” 
TaBLE LVIII.—Measurements of Lupus aquaticus. 
5 2 
s From tip of | Tail to end & 
8 nose to— of— Le} Ei 
Al a & 
a 3 o 
5 Locality. ot c= Remarks. 
bo A y=) 5 =| 2 
3 Ba yee |e asl ics aici fecise 
© S = ) Ci a oO 
is) 3° a - & 4 iss) 
6077) MMUssissippla ee hone oe Sonn acannon aes Soa ee eee eee 325i] (19H00)| Basen al eceess lees = 3.10 | From Baird. 
mE | loses, On on gaetene ee se aceasta ee sone ee Be soce 15500) | Seal omnes : 
2306’ | (Prairie’Mer Roupe, Lass) = 255.0. (22 < ate a -- 4.10 | 17.50 | 1.60 | 2.40 
2307 |...... (SS Ac cons SSR Ce ERA CSB DCERROCEC Es asecoe PoRCOUOASEOSIECE ES: 3.85 | 20.50 | 1.75 | 2.68 
2308) ||.-..- do..... 19:00) sees lene oe 
SUSE eee do... .< schebec 3. 19.00 | 2.20 | 2.81 
ZoL0 oom GO-2--coce" 5 NPAC Wasser esse. 
oR Calcusion Dates’ of sccnwo fet oc 5 Sos otnan caps oot eo ee ee ee 3. 33 | 16.00 | 2.08 | 2.92 
ee 
