From the Eadcni United States. 



65 



Measurements of One Hundred and Fifty Specimens of Sitomys americanus (Kerr). 



Nninljer. 



Skull. 



1760 



980 



981 

 982 



983 

 984 

 985 

 980 

 987 

 988 

 989 

 990 

 991 

 992 



99;; 



994 



995 



1218 



1000 



1001 



1002 



1218 



372 



805 



806 



808 



809 



810 



812 



813 



814 



815 



817 



818 



819 



822 



1215 

 1216 

 1217 

 357 

 358 

 360 

 361 



Localit3^ 



Peterboro, N. Y. 

 Geneva, N. Y . . . 



West Dedliaiii, 

 Mass. 



Date. 



Nov. 9, '92 



Dec. 25, '90 



" 27, '90 



Jan. 30, '92 



Seekonk, Mass 



Concord, Mass 

 Weston, Mass. 



a a 



I[)swich, Mass 



u a 



North Truro, Mass 



» 30, 

 " 30, 

 " 30, 

 " 30, 

 " 30, 

 " 30, 

 •' 30, 

 " 30, 

 " 30, 

 " 30, 

 " 31, 

 " 31, 

 " 31, 

 " 31, 

 " 31, 

 Mav 8, 

 "" 1, 

 " 1, 

 1. 

 " 8, 

 Apiil 6, 

 Nov. 28, 

 " 28, 

 " 29. 

 " 29, 



•" 29, 



" 29, 



" 29. 



" 29, 



" 29, 



" 30. 



Dec. 12; 



Nov. 5, 



May 2, 



Mar. 21, 



" 21, 



A])ril 1, 



" 1. 



'92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '91 

 '91 

 '91 

 '91 

 '91 

 '91 

 '91 

 '91 

 '91 

 '91 

 '91 

 '91 

 '91 

 '91 

 '92 

 '92 

 '92 

 '92 

 '92 

 '92 

 '91 

 '91 

 '91 

 '91 



CL, 



3 

 3.4 



3.2 



3.2 



3.2 



4 



3 



3.4 



3.6 



3.2 



4 



3.8 



2.4 



3.4 



3.2 



5 



2.4 



3.4 



4.6 



3.4 



3.8 



2.8 



32 



3 



4.2 



4 



3 



3.6 



3.6 



3.2 



4.2 



4 



3 



3 



2.8 



2.6 



3 



2.6 



3 



w 



22 

 20.4 

 19 

 20.4 



20.8 



20.5 



21 



20 



21 



21 



21 



20.5 



23 



20.2 



20.5 



20 



19 



21 



20 



20 



20.5 



21.4 



20.2 



20 



20.8 



21 



20.4 



20.2 



20.4 



20.8 



20.8 



20.5 



20.4 



20.5 



20.6 



20.8 



19.8 



19.8 



20 



20 



20.4 



20.8 



20.8 



20 



20.5 



20 



19.5 



19.5 



16 

 17 

 16 

 14.5 



15 



16 



15.8 



16 



15.8 



14.8 



15.2 



15 



16.5 



17 



14.8 



15.4 



13.5 



17 



14.8 



16 



15 



16.4 



15 



16 



17.2 



14.8 



14.8 



15 



15 



15.8 



15.6 



15.6 



17 



15 



15.4 



16.4 



14.4 



15.8 



16 



15 



15 



17 



16.8 



17 



16 



15.8 



16.2 



17 



