LEPORIDM—CRANIAL CHARACTERS. 285 
III. Postorbital process anchylosed with the skull. Hind feet short. Pelage 
never white. 
A. Width of the skull half of the length. 
Mi sizemedionn * Natl long. 225 2 vec hao. 32 See - palustris. 
B. Width of the skull considerably less than half the length. 
size nrc. ab ailishortam ojo Rt 8 aquaticus. 
TABLE III.—Showing the ratio of the width and other measuremcnts of the skull to the length. 
og 5 eS SE d 
El al iets leet OI et aS 
: ae\/2i2 |g412 |8 
: ple ela eels «lg 
A 4 = 4a ° Syst] Ey a a s 
8 ev fateh al) Gee RSE she rere te! to | & 
2 Species. qa 2 E —E | 2 2h) or Fy a sg Locality. 
2 = ao | ¢ | @¢ |3 ge] a eal s 
ony Ee oO o oO om Zeleels E E 
° a =I =| en a) ° 8 a 
Ee ee) See SS ete epee been teh al ieeete |e 
oO 3 2 2 e 5 So) S a 
a ilafila]s/Se|se/88le8| 5] 
I g g s @l/ag|aslae ae] eB Bg 
2} = 3 Gi Gi BR AA ae ae o ° 
A 5 A A a) p p p | Hw 
7 | Lepustimidus var. arcticus | 0.52 | 0.43 | 0,22 | 0.22 | 0.33 | 0.44 | 0.19 | 0.19 | 0.73 | 0.50 | Various localities. 
6 | Lepus americanus var. | 0.50 | 0.41 | 0.21 | 0.19 | 0.30 | 0.40 | 0.19 | 0.15 | 0.71 | 0.47 |New York and Penn- 
americanus. sylvania. 
14) coe GI) cess conasscace vee-- | 0.50 | 0,41 | 0,21 | 0.18 | 0.31 | 0.41 | 0.19 | 0.15 | 0.70 | 0.47 | Oxford County, Maine. 
RON ean ame AOS aca copetecoect rosea. 0.50 | 0.40 | 0.22 | 0.18 | 0.33 | 0.41 | 0,19 | 0.15 | 0.70 | 0.47 | British Possessions. 
6 | Lepus americanus var. | 0.50 | 0.39 | 0.21 | 0.18 | 0.30 | 0.40 | 0.15 | 0.14 | 0.68 | 0.47 | Washington Territory. 
Washingtoni. 
1 | Lepus timidus ........ bhedes 0.49 | 0.45 | 0.24 | 0.24 | 0.32 | 0.42 | 0.18 | 0.14 | 0.67 | 0.46 | Bavaria. 
1 | Lepus variabilis ...... e-----| 0.51 | 0.38 | 0.22 | 0.21 | 0.32 | 0.44 | 0.19 } 0.16 | 0.72 | 0.52 | Sweden. 
5 | Lepus cuniculus....... -----| 0.46 | 0.47 | 0.18 | 0.17 | 0.31 | 0.44 | 0.17 | 0.14 | 0.69 | 0.47 | Upton, Oxford County, 
Maine (domestic). 
0.45 | 0.21 | 0.20 | 0.32 | 0.42 | 0.17} 0.14 | 0.73 | 0.47 | Various localities. 
0.41 | 0.21 | 0.18 | 0.32 | 0.41 | 0.17] 0.14 | 0.68 | 0.38 | California and Lower 
California. 
0.41 | 0.22 | 0.20 | 0.32 | 0.41 | 0.16 | 0.14 | 0.68 | 0.39 | Vicinity of San Fran- 
cisco, Cal. 
TAU | be does... Hconodisaecisee 0.45 | 0.41 | 0.20 | 0.19 | 0.31 | 0.39 | 0.16 | 0.14 | 0.66 | 0.39 |Cape San Lucas, Lower 
California, 
15 | Lepus campestris 0. 42 | 0.24 | 0.23 | 0.33 | 0.42 | 0.19 | 0.15 | 0.68 | 0.49 | Various localities. 
29 | Lepus sylvaticus var. syl- | 0.50 | 0.43 | 0.21 | 0.17 | 0.32 | 0.43 | 0.19 | 0.15 | 0.69 | 0.46 | ....do. 
vaticus. 
i) eee CW seeeeateeeets seeaseee 0.50 | 0.43 | 0.22 | 0.18 | 0.32 | 0.43 | 0.19 | 0.16 | 0.69 | 0.46 | Washington, D.C. 
bs esse (Oe cedcRocHouee pee nee 0.49 | 0.42 | 0.21 | 0.17 | 0.32] 0.43 | 0.18 | 0.15 | 0.69 | 0.46 | Georgia. 
15 | Lepus sylvaticus var. arte- | 0.50 | 0.43 | 0.20 | 0.18 | 0.33 | 0.43 | 0.19 | 0.14 | 0.72} 0.49 | Various localities. 
misia. 
0. 42 | 0.20 | 0.18 | 0.32 | 0.43 | 0.18 | 0.14 | 0.70 | 0.49 | Texas. 
0.43 | 0.20 | 0.18 | 0.33 | 0.42 | 0.18 | 0.14 | 0.70 | 0.49 | Deer Creek, Nebraska. 
0.43 | 0.19 | 0.16 | 0.31 | 0.40 | 0.18 | 0.14 | 0.69 | 0.45 | Various localities. 
0.44 | 0.19 | 0.17 | 0.32 | 0.42 | 0.19 | 0.14 | 0.69 | 0.45 | Vicinity of San Fran- 
cisco, Cal. 
| aan dO Sreaskeseemascs-eesee 0.51 | 0.41 | 0.19 | 0.17 | 0.31 | 0.39 | 0.18 | 0.16 | 0.65 | 0.45 | Cape San Lucas, Lower 
California. 
13 | Lepus palustris............. 0.51 | 0.40 | 0.18 | 0.20 | 0.31 | 0.42 | 0.20 | 0.15 | 0.74 | 0.50 | Saint Simon's Island, 
Georgia. 
5 | Lepus aquaticus..........-. 0.46 | 0.43 | 0.19 | 0.18 | 0.32 | 0.44 | 0.19 | 0.15 | 0.72 | 0.48 | Louisiana and Missis- 
sippi. 
