MURIDAE— SIGMODCXNTES— HESPEKOMYS LEUUOPUS. 55 



Table IX. — Measurements of seventy-five skulls o/Hesperomys leucopus, cf-c— Continued. 



:t..l g 

 :iC: 1 



,.;■•■; 

 



I 1 ■-■ 7 

 I 4.. 



... , - 



J44. 



1 R fiS 

 IJS 4 



■•:.'. 

 I 3 yy 



I 7 9 !i 

 645 



17.01 

 04b 



i .. - ii 



••4 1 



Locality. 



Monterey, Cat 



do 



Fort Tejon, Cal 



do 



do 



do 



Simiahmoo, Wash 



Steilacoom, Wash 



do 



Charco Escondido .. .. 

 Pecos River, N. ilex . . . 



El Paso, Tex 



Turkey Creek, Tex 



El Paso, Tex 



Fort Whipple, Ariz ... 



do 



do 



Santa Cruz, Sou 



Fort Pierre, Dak 



do 



Little Missouri River . 

 Klamath Lake, Oreg . 



New Jersey 



Santa Clara, Cal 



Saint Louis, Mo 



do 



do 



Racine, Wis 



Saint Louis, Mo 



Kuoxville, Tenu 



Kemper County, Miss 



Society Hill, S. C 



Schuylkill Kiver, Pa . 



Carlisle, Pa 



Unknown 



ii.:;: 

 0.37 



0. 4". 



0. 4'2 

 0.37 

 li. 37 

 0. 35 



0.38 

 0. 38 

 0. 38 



o. ::;> 



0. 40 

 0. 4(1 

 ii. 43 

 0. 40 

 0. 42 

 0.38 

 0.38 

 0. 3G 

 038. 

 0.*36 

 0. 37 

 0.41 

 0. 38 



o. :;7 



0.35 

 0. 36 

 0. 40 

 0. 40 

 0.40 

 0. 40 

 0. 40 

 0.39 

 0.38 



0.53 

 0.52 



0. 54 



0. 51 



0. 50 

 0.50 

 0.45 



0.54 

 0.50 



11.55 

 0. 54 



0. 48 

 0.50 



(1.53 

 0. 50 



0.50 



0.5G 

 0. 49 

 0.48 



0. 55 

 0.52 

 0. 57 

 0. 51 

 0. 51 

 0.50 



0.17 

 0. 1 7 

 0. Id 

 ii. 18 



ii. 18 



o. ii ; 



0. 17 

 0. 15 

 (I. u; 

 0.17 

 0.19 

 0.18 

 0. 18 

 0.20 

 0.20 

 0. 16 

 0. 17 

 0. 18 

 0. 18 

 0. 17 

 0. 17 

 0.17 



0.20 

 0.16 

 0.16 

 0.15 

 0.15 

 0.17 

 0. 19 

 0. 18 

 0. 20 

 0.16 

 0.18 

 0.18 



tc 



0.65 



11.65 



0. 65 

 0. 64 

 0. 61 

 0. 01 

 0. 60 



0.61 

 0. 62 

 0. 06 

 0.68 

 11.68 

 0.69 

 11.59 

 0.58 



0. 63 

 O.60 

 0. 68 

 0. GO 



0.70 

 0. 60 

 0. 60 

 0. 57 

 0. 60 

 II. 64 

 0. 68 

 0.64 

 0. 65 

 0. 08 

 0.64 



Specimen and remarks 



Typical of "gambeli ". 



do. 



Representing " gambeli ". 



do. 



do. 



do. 



Supposed "austeriis"or"lioy]ii. ' 

 Typical of "austerus". 



do. 



Representing " texanus". 



do. 



do. 



do. 



Purporting to bo var. sonoriensit 

 Representing soiwrii nsis. 



do. 



do. 



Var. sonoriensis. 



do. 



do. 



do. 



Representing " gambeli ". 

 Type of " campestris ". 

 Typical of II. californicus. 

 Typical of II. michiganensis. 



do. 



do. 



do. 



Typical of II. aureolus. 



do. 



do. 



do. 



//. aureolus .' 

 H. aureolus "' 



* Iu the fractional numbers, the numerator is that of skull itself, the denominator being that of the corresponding skin, 

 t The " height" is taken by laying the skull on a glass plate (when it rests upon the incisors anil bulla- oss<a'),and measuring 

 from the glass to the highest point, which is at the panotitis, in a perpendicular that passes slightly iu front of the bulla;. 

 J From tip of incisors to back of condyle. 



All the skulls of obviously ungrown animals are excluded from the fore- 

 going table as tending to vitiate general results, although there are many 

 included of specimens in the gray state of pelage. 



On examining the table, it will be seen that the chief discrepancy the scries 

 affords is in the case of //. michiganensis. This averages noticeably less than 



