Howell — Mammals of the Middle Mississippi Valley. 31 



grayish, sometimes with asliojht linfFy or rufous tinge ; feet and tail clotlied 

 with grayisli hairs. A sHghtly worn April specimen is considerably paler 

 than the rest. 



The series of V2 specimens (mostly adults) from Horseshoe. Lake, 

 Missouri (April 21), average a little paler and less reddisli than tyi)ical 

 Kansas specimens, but agree with them in size and cranial characters. 



Mensurements. — Five adults from Fort Leavenworth, Kansas: total 

 length, 132 (123-141) ; tail vertebrae, 21.4; ( 19-24) ; hind foot, 20 (19-21). 

 Skull (3 adult males): occipito-nasal length, 29.9; zj'gomatic breadth, 

 17.9; interorbital breadth, 3.4; breadth of rostrum, 5.8; length of nasals, 

 8.2; maxillary toothrow, 7.5. Nine adults from Horseshoe Lake, Mis- 

 souri: total length, 134(131-138); tail vertebrae, 20.7(20-22); hind font, 

 19.5 (19-20). Skull (10 adults): occii)ito-nasal length, 28.(1; zygiimatie 

 breadth, 17.6; interorbital breadth, 3.4; breadth of rostrum, 0; length of 

 nasals, 7.6; maxillary toothrow, 7.8. 



Qeomys bursarius (Shaw). 



I'OCKET (ioPIIKH. 



Fllbrts were made to trace the southern limit of this species in Illinois. 

 It had been previously recorded from Belleville* and was found to occur 

 very sparingly at Coulterville, Woodlawn, and Odin, and a few miles 

 north of Olney. It does )iot occur on the prairie about Ducpioin, so that 

 Coulterville is considered to be about its si>uthern limit in the State. 



Sylvilagus aquaticus (F>achman). 



SWAM I* KAHl'.IT. 



This rabbit is numerous in the swampy bottoms of southeastern Missouri, 

 western Kentucky, and southern Illinois. Its upper limit in ]Mi.ssouri is 

 a few miles south of Cape Girardeau. In Illinois it ranges slightly farther 

 north in a narrow belt of swamp close to the ]^.[ississippi I\iver, to within 

 a few miles of Grand Tower. In the Ohio Valley it is found in the 

 swamps on both sides of the river to a point about five miles below (iol- 

 conda, Illinois, and Berry Ferry, Kentucky, and is reported, also, from 

 Gilbertsville, Kentucky, in the Teimessee Valley. Careful in(juiries were 

 made in the lower Wabash Valley to ascertain if this species occurred 

 there, and I was positively assured by well-informe<l residents that it 

 never was known in that region, ^\'ith the exception of a few isolated 

 areas of swamp land there is no country there suited to their habits. 



Sylvilagus floridanus alacer (Bangs). 



SOUTHWESTERN COTTONTAIL. 



This form of the cottontail ranges north to southeastern ^lissouri and 

 wt'stern Kentucky. 



S|)ecimens were taken at tbe following localities: 

 Missouri: Cushion Lake. 

 Kentucki/: Berry Ferry. 



•N. Am. Fiuma, No. S. p. 12i). isiir,. 



