MUItlD^';— HIGMODONTKS— IIKSl'KKOMYa TOUUIDUW. 



lOS) 



mens before us, nnd we do not doubt its consfnncy. It is well shown in Audu- 

 bon's Icn-imnd figure. 



One young specimen (No. 3002) from the Medicine Bow Mountiiin.s in 

 the gray jjelage, is renuuUtil)ly jmle-colorod above, the tail nearly white, tte 

 Tiiis corresponds exactly with the pale Ilesperotmjs var. sonoriensh and the 

 pale Aniicola of the Prdoinya section, from the same region. 



The only skull l)efore ns (No. Wa'-) ofVors the following measurements: — 

 Length, 1.07; interorbital width, 0.20 (the zygomata are destroyed); width 

 across cranium, 0.48 ; lower jaw, from tips of incisors to condyle, 0.72 ; length 

 of upper molar series, 0.10. 



Tadlk WX.—Meaturenuntt of nine tpeciment of Ilr.HPKiiuMYS (O.nyciiomys) LEUCOOASTKn. 



m 



4007 

 JODS 

 3091 

 3.178 

 3703 

 37U4 



July 93, 1857 

 Si'pt. 10, iej7 



Locality. 



Xunr MiMouri River . . . 



do 



KuniiiiiBWatiT 



Fort Kiley. Knnii 



Modicine lk>w MoiintAinii . . . 

 HH])ul>ii('aii Hivor, Knns. T»r 

 Neosho Falls, Kans. Tor — 



do 



do 



Collector. 



F. V. Uaydoii . 

 ...do 



do. 



U. Brandt .. 

 W. 8. Wood., 



...do 



HF.Oon... 



..do , 



..do 



MoHto- 



0.00 

 0.01 



OlOI 

 O.SO 

 0..t« 



1. 03.1. SO 

 LOoLl.t 

 I.Oo'l. 13 



I 



d 



iS 



4.0O 

 4.00 

 ItU 

 3.50 

 3. US 

 f 50 

 4.50 

 4.i» 

 4.40 



H 



0.40 



H P4 



1.40 .. 0.86 

 1. HO 39 0.85 

 1. 05 0.,% 11.88 0. CO 

 l.00O.4o'o.7OO. 40 

 i.300.40Jj.70 0.5JI 

 i. 00 a 44 0.87 0.59 

 1.300.430 83 0.48 

 1.30 0.50 0.890.53 

 1.40 0.53 a 83 0.59 



Remarks. 



Dry. 



Alcoliolio. 

 .. do. 



Not grown. 

 ..'do. 

 8trot<*"l. 

 Dry. 

 ...do. 

 ...do. 



* Other metMiirempntM of 9340, given by Ituird, aro :-.Fon« arm, 0.89 ; longest linger and claw, 0.b« ; ita ohiw alone, 

 0.90) femur, U.83i tibia, l.05| lougoat too nnd cluw, 0.30 1 Its claw ulone, 0.14. 



HESPEROMYS (ONYCHOJIYS) TORRIDUS, Cones. 

 Arliona Hole-Mou«o. 



Uaffromijt {Oiiijchomijn) lorridui, CoUKS, Proc. Acail. Nat. 8ci. Pbila. 1S74, IS."?, 



Di.\GNOSis. — O. imaghiem O. kucogastiin referens, sed caudu longiore, nu- 

 riculis prtecipue major ibus, planlia minus pilosis, unguibus tnanus debilioribus, 

 et coloribits mag'is Jlnoesccntibus, primo visa differt ; tnurino-fulvus ; rostro toto, 

 pedibus, partibusque omnibus inferioribus JUtvo-albis ; caudd lined fused angus- 

 tald nee ad apicem porrectd supra, nolatd. Long. 3v, caudw 2, manus ], pedis 

 i, auriculce fere \. 



Habitat. — Arizona. 



(No. 9886, 9.") — On comparing this animal with typical Uucogaster from 

 Kansas nnd Nebraska, the differences in general form are obvious. Truly 

 Onychomyn, with the unmistakable aspect of that section, yet the members are 



1 



