MAMMALS OF THE MEXICAN BOUNDARY. 

 MeiiKiiremeiitK uf 77 spec.imenn of the genus Oi/reom)/s— Continued. 



349 



MusQ^ni number. 



58918 



58915 

 58916 

 68922 

 58923 

 58919 

 58920 



58921 



20738 



20727 

 20731 

 20734 

 20736 

 20729 

 20728 

 20732 

 20730 

 20735 



21381 

 21386 

 21379 

 21385 

 21384 

 21377 

 21378 

 21382 

 21383 

 21380 



58918 

 58915 



•'58922 

 58923 



58921 

 37036 



35876 



36871 

 36875 

 35877 

 36879 

 36873 

 35872 

 37033 

 35874 

 36878 



36170 

 36178 

 36172 

 36179 

 36177 

 36171 

 36174 

 36176 

 36176 

 36173 



SS 



2480 



2481 

 2482 

 2494 

 2495 

 2503 

 2564 



2565 

 2666 



1992 



2119 



2120 

 2121 

 2122 

 2123 

 2124 

 2125 

 2126 

 2141 

 2142 



2428 

 2429 

 2430 

 2431 

 2432 

 2433 

 2434 

 2436 

 2436 

 2437 



Locality. 



Cynomys ludovicianus arizo- 

 nensis — Continued. 



Lang's Ranch, Monument 

 - No. 66. 



-do. 

 .do. 

 -do. 

 .do. 

 -do. 



AnimasValley, Grant County 

 New Mexico. 



-do. 

 .do. 



Cloverdale, Grant County, 

 New Mexico. 



San Pedro River, at Monu- 

 ment No. 98. 



.do. 

 .do. 

 .do. 

 .do. 

 .do. 

 .do. 

 .do. 

 .do. 

 -do'. 



.do. 

 .do. 

 .do. 

 .do. 

 .do. 

 .do. 

 .do. 

 .do. 

 -do. 

 .do. 



Date. 



Sex and 

 age. 



Aug, 31 



..do.... 

 ..do.... 



Sept. 3 

 ..do.... 

 Sept. 6 

 Oct. 2 



.do., 

 .do-. 



1892. 

 July 18 



Oct. 14 



..do... 

 ..do... 

 ..do... 

 ..do... 

 ..do... 

 Oct. 14 

 ...do;.. 

 Oct. 21 

 ..do... 



1893. 

 July 28 

 ...do... 

 ...do... 

 ...do... 

 ...do... 

 ...do... 

 ...do... 

 ...do... 

 ...do... 

 ...do... 



a? ad. 



cf ad. 

 cTad. 

 cf ad. 

 otfad. 

 cf ad. 

 d'ad. 



tfad. 

 9 ad. 



(fad. 



?ad. 



? ad. 

 cf ad. 

 cf ad. 



mm. 

 380 



390 

 400 

 430 

 387 

 370 

 ' 395 



400 

 378 



367 

 349 

 360 

 373 

 365 

 387 

 382 

 392 

 392 

 360 



1^ 



mm. 

 80 



86 

 89 

 103 

 84 



mm.: 

 60 



65 

 64 

 66 

 62 



62 



•a > 



5.0 

 .6.0 

 6.0 

 6.0 

 5.0 

 5.0 



5.0 

 6.0 



5.0 



5.5 

 6.0 

 5.0 

 ,5.6 

 5.5 

 5.0 

 6.6 

 6.0 

 5.2 



.5.0 

 5.0 

 5.0 

 5.0 

 5.0 

 5.0 

 6.0 

 5.0 

 5.0 

 5.0 



aMammse, 4 pairs. 



& Tail abnormal. 



Family CASTORIDiE. 



BEAVERS, 



Skull massive, without postorbital processes, the angle of the man- 

 dible rounded, and the cheek-teeth rootless, with re-entering enamel- 

 folds. Premolars |. Habits natatorial. {Flowei' and Lydekker.) 



