LEPORID—LEPUS CALLOTIS ET VAR. 355 
of the plains east of the Rocky Mountains. Dr. Cooper gives its western 
limit in latitude 35° as the Colorado River. I have observed it on the plains 
of Western Nebraska and Middle Kansas; and there are specimens in the 
collection from as far east as Austin, Texas. It does not appear to overlap 
the range of Lepus californicus, but extends over the southern half of the 
range of Lepus campestris. ‘Toward the Mexican border, especially in Texas, 
it begins to very generally take on the distinctive features of variety cadlotis. 
The habitat of Lepus callotis var. cadlotis extends from about the southern 
boundary of the United States far southward into Mexico, there being speci- 
mens in the collection from Orizaba and Tehuantepec; and De Saussure 
mentions it as being common in the province of “Mechoacan”, in about lati- 
tude 19°. 
TaBLE XLIX.— Measurements of LEPUS CALLOTIS. 
I : 7 - 
3 From tip of nose | Tail to end Length of— 
g to— of— g 
3 ; —| 3 
z r Locality. f 2 8 b=! Remarks. 
s3 Ante aliat a |S Seelomee Nats A ee 8) 
ra] ol it (3) bm} be al > = = 
° 3 (i o ae o = v 
3S CANES leet eS (eet ze tla 
454 | Boisé River, Oregon Ter.........--..--..---- oe BL Soe mee 1.70 | 4.40 | 4.90 | From Baird. 
299 | Charco Escondido, Mexico ...--...-......--- Bee 75 | 2.95 | 3.25 | 2.17 | 4.58 | 5.07 |--.-do. 
134s Maple ass, LOX: csss=~ncoscseranwien=eeens<o- teen /eh BAN te oe | 2.17 | 4.58 | 4.50 | .-.do. 
165) |isesnes GO Dece ass ccnacacecunneéengod Be see 50 | 1.75 | 2.83 | 2.93 | 4.58 | 5.07 * do 
252 | Brazos de Santiago, Tex. .-.--.---. =2| a 75 | 1.88 | 2.75 | 2.25 | 4.60 | 4.75 | ...do. 
_ 301 | West of San Antonio, Tex “a 50 | 3.08 | 4.08 | 2.05 | 4.58 | 5.00 | ..-do. 
2968 | Llano Estacado, Tex.......-..-. -..--.-----: mine OO} | eran ease aero 4.95 | 5.22 |....do. 
1721 | Pecos River.-....------.------ Bre ae Aembe ee g OO) aoe eente 2.05 | 5.05 | 5.95 -do 
Vi22)|.--.=- Oseenentes as arene OD} |faeee= | eae 2.38 | 4.88 | 5.95 --do. 
346 | Fort Conrad, N. Mex Gh) posto loan 2520) |eseias 5. 95 do. 
TABLE L.—Measurements of skulls of LEPUS CALLOTIS (including vars. TEXIANUS and CALLOTIS). 
; - |s pe : 2 ¢ 
: q a 3 2 2 3 3 3 
2 a S 2 a : lq 2/8 = 
< SoS Se he San escola lie 
B 5 "Sr =o |S eS 
2 S) 43 a a f= Bu a & oO| t& ot 5 3 
Pa ¢ a =o Ss = ° 9° Sy) 2 a S 3 = 
a 5 : @ a , Se aa} = |e s|s i) =o bo 
g 2 Locality. | Bs na E BE |o ae| @ |& B| > o 2 5 
5 =| a Ss e a ne or 3 °o =) oe | La) a 
a 5 € aa D(H 2 o aa 25/2 |stilSe = e Ee 
2 EI | e Pe | a pad als lS Riis |e 8)s gj EVIE 
Eo 3 = a 8 5 2 eon (etree EL ate cele ||P 2 i ehics| 8a] 4 a. 
2/4 al2/2lalals [Seles] 8 lge/sele2] & | 8 
1 3 s S 3 a I 8 2 3 
a fess 21 2.) 28 18/8 [8 |Ba/SSl Se /BSlBs| es) 2 | 
iS) is} a oO i=) A A A |p =) pb |b =) =) =I 4 
1.75 0.90 | 1.77 | 0.80 | 0.80 | 1.22 | 1.57 |......]....-. 0.65 | 0.55 | 2.65 | 1.30 
1.73 | 0.80 | 1.50 | 0.83 | 0.70 | 1.12 | 1.45 | 0.37 | 0.33 | 0.63 | 0.52 | 2.60 | 1 69 
1.75 | 0.87 | 1.95 | 0.88 | 0.86 | 1.37 | 1.77 | 0.34 | 0.34 | 0.75 | 0.54 | 2.98 | 1,92 
1. 82 | 0.87 | 1.75 | 0.87 |...... 1,28 | 1.60 | 0.42 | 0.35 | 0.70 | 0.57 
1.63 | 0.65 | 1.50 | 0.67 |....-. 110) Sti) ese ses lence 0.60 | 0.47 
1.70 | 0.68 | 1.92} 0.80 | 0.74 | 1.36 | 1.88 | 0.50 | 0.35 | 0.65 | 0.57 
1.80 | 0.90 | 1.70 | 0.85 | 0.80 | 1.15 | 1.67 | 0.40 | 0.34 | 0.67 | 0.52 
1.82 | 0.94 | 1.75 | 0.87 | 0.84 | 1.25 | 1.70 | 0.38 | 0.35 | 0.67 | 0.55 
1.75 | 0.75 | 1.65 | 0.80 | 0.74 | 1.24 | 1.60 | 0.40 | 0.35 | 0.60 | 0.50 
* Rather young. 
