342 



Measurements of the molar teeth o/Uesus americanus. 



Locality. 



Sex. 



Upper first 

 molar. 



Upper sec- 

 ond molar. 



Upper third 

 laolar. 



897 

 3857 

 8161 

 9477 

 8695 

 1155 

 1156 



987 

 1154 



988 

 3394 



991 



994 



Saint Lawrence County, New York. 



Pennsylvania 



Nulato, Alaska 



Alaska 



do 



Prairie Mer Eouge, La 



do :.: 



do 



do 



do 



Georgia 



Copper Mines, K". Mex 



do 



0.50 

 0.52 

 0.50 

 0.45 

 0.44 

 0.42 

 0.50 

 0.50 

 0.43 

 0.41 

 0.40 

 0.44 

 0.43 



0.42 

 0.35 

 0.33 

 0.38 

 0.27 

 0.33 

 0. .39 

 0.38 

 0.35 

 0.35 

 0.32 

 0.33 

 0.32 



0.78 

 0.75 

 0.76 

 0.72 

 0.67 

 0.69 

 0.76 

 0.76 

 0-'6 

 0.75 

 0.71 

 0.68 

 0.70 



0.60 

 0.54 

 0.54 

 0.48 

 0.46 

 0.47 

 0.55 

 0.58 

 0.52 

 0.57 

 0.51 

 O.-'iO 

 0.50 



1.22 

 1.17 

 1.15 

 1.00 

 0.94 

 1.00 

 1.18 

 1.15 

 0.96 

 1.11 

 1.08 

 L07 

 1.03 



0.64 

 0.60 

 0.64 

 0.52 

 0.51 

 0.53 

 0.67 

 0.65 

 0.57 

 0.63 

 0.57 

 0.57 

 0.54 



TABULAE SUMMARY. 



Species. 



Oanis lupns 



Do 



Do 



Do 



Do 



Do : 



Do 



Do 



. Do 



Do 



Do 



Do 



Canis latrans 



Do..... 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



V ulpes alopex , 



Do 



Do 



Do 



Do •...„ 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



Urocyon virginianus 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



Locality. 



Forts Simpson, Yukon, and 



Kae. 

 Forts Benton and Union... 

 Forts Kearney and Harker. 



Rio Grande aud Sonora 



Forts Simpson, Yukon, and 



Rae. 

 Forts Benton and Union. .. 

 Forts Kearney and Harker. 



Rio Grande and Sonora 



Forts Simpson, Yukon, and 



Rae. 

 Forts Benton and Union. . . 

 Forts Kearney and Harker 



Rio Grande and Sonora 



Fort Randall 



Fort Kearney 



California 



Fort Randall 



Fort Kearney 



California 



Fort Randall 



Fort Kearney 



California 



Alaska 



Mackenzie River District . 



Upper Missouri 



Essex County, New York.. 



Europe 



Alaska 



Mackenzie River District . 



Upper Missouri 



Esex County, Xew York. . . 



Europe 



Alaska 



Mackenzie River District . 



Upper Missouri 



Esex County, Kew York .. 



Europe 



Pennsylvania,'Washington, 



and Virginia. 



Texas 



Southern California 



Tehuautepec, Mexico... 

 Islands off California... 



Merida, Yucatan 



Pennsylvania, Washington, 



and Virginia. 

 Texas 



3 p. 



Average . . 



....do 



....do 



....do 



Maximum 



....do 



....do 



....do 



Minimum . 



....do 



....do 



..-.do 



Average .. 



....do 



....do 



Maximum. 



....do 



...do 



Minimum . 



....do 



....do 



Average .. 



do 



....do 



....do 



....do 



Maximum 



...do 



....do 



....do 



....do 



Minimum . 



....do 



...do 



....do .... 



....do 



Average .. 



.do 

 .do 

 -do 

 .do 



Maximum 

 ....do .... 



10.38 



9.45 

 9.69 

 8.37 

 11.50 



10.50 

 10.15 



8.75 

 9.20 



8.75 

 9.35 

 7.75 

 7.23 

 7.25 

 7.69 

 7.60 

 7.95 

 7.60 

 6.65 

 6.95 

 7. 45 

 5.98 

 5.80 

 5.78 

 5.40 

 5.58 

 6.20 

 6.10 

 6.00 

 5.68 

 5.70 

 5.70 

 5.55 

 5.40 

 5.20 

 5.50 

 4.97 



4.56 

 4.56 

 4.20 

 3.80 

 3.75 

 4.70 



4.60 



Remarks. 



5.40 



5.07 

 5.18 

 4.31 

 6.20 



5.50 

 5.50 

 4.62 

 4.50 



4.50 

 4.85 

 4.05 

 3.61 

 3.65 

 3.75 

 3.80 

 4.00 

 3.80 

 3.38 

 3.50 

 3.48 

 3.20 

 3.02 

 2.90 

 2.80 

 3.08 

 3.32 

 3.28 

 3.20 

 2.95 

 3.15 

 2.90 

 2.87 

 2.78 

 2.70 

 3.04 

 2.64 



2.64 

 2.54 

 2. .32 

 2.03 

 1.93 

 2.70 



2.70 



Var. fulvus. 



Do. 

 "macrurus." 

 Var. fulvus. 

 Var. alopex. 

 Var. fulvus. 



Do. 

 " macruriis." 

 Var. fulvus. 

 Var. alopex. 

 Yar. fulvus. 



Do. 

 " macrurxis." 

 Var. fulvus. 

 Var. alopex. 

 Var. virginianus. 



Do. 

 Do.. 

 Do. 



Var. littoralis. 

 Var. virginianus. 

 Do. 



Do. 



