110 SIGMUDON. 



Sigmodon melanotis Bailey. Biological Survey collection. 



Prof. Biol. Soc. Wash., XV, p. 114, June 2, 1902. 

 501!»0. Skin and skull. Adult female. Patzcuaro, Michoacaii, Mex- 

 ico. July 15, 1802. Collected by K. W. Nelson. Origrinal num- 

 ber 2834. 



Well-niatle t-kin in j,'oo(l condition; sicull perfect, except for absence of right 

 anguhir process of mandible and broken right zygoma. 



Sigmodon hispidus microdon Bailey. Biological Survey collection. 

 Proc. Biol. Soc. Wash., XV, pp. 111-112, June 2, 1902. 

 108i67. Skin and .skull. Adult male, Puerto Morelos, Yucatan, 

 Mexico. March 18, 1001, Collected by E, W, Nelson and E, A. 

 Goldman, Original number 14581 



Well-made skin in good condition; skull pcrfec't. 



Sigmodon minimus Mearns. 



Proc. U. S. Nat. Mus., XVII, No. 994, p. 130, July 19, 1894. 

 IU>9r- Skin and skull. Adult male, '* From upper corner monu- 

 ment, New Mexico, on the Mexican boundary' line 100 miles west 

 of the initial monument on the west bank of the Rio (irande" 

 (monument No, 40, 100 miles west of El Paso, Texas). April 26, 

 1802. Collected by Dr, E, A, Mearns, l^ S. A., and E. X, Holzner. 

 Original number 1704, International Boundary Commission. 

 Skin catalogued August 80, 1803; skull, January 5, 1807. 



Fairly well made skin in good condition; extreme tip of tail missing and belly 

 a lit;ie soiled and torn. Skull has right zygomatic arch completely missing; 

 I)terygo-palataI region and both angular processes of mandible somewhat 

 injured. 



Sigmodon ochrognathus Bailey. Biological Survey collection. 



Proc. Biol. Soc. Wash., XV, p. 115, June 2, 1902. 

 110333, Skin and skull. Adult female. Chisos Mounttdns, Texas. 

 June 13, 1901. Collected by V. Bailey. Original munber 7081 . 

 Well-made skin in good condition, but right ear imperfect: .'^kiiil perfect. 



Sigmodon hispidus pallidas Mearns. 



Preliminary Dingnosesof New Mannnalsof the(ieneraSciurus, Castor, Neotoma, 

 and Sigmodon from the Mexican Border of the United States, p. 4, March 5, 

 1897. (Rei)rinted in Proc. U. S. Nat. iMus., XX, No. 11.S2, j>. o04, January 

 18, 1898.) 



inUi- >Skin and skull. Adult male, '"Erom the left bank of the 

 Kio (Irande about (i miles above El Paso, Texas, and o[)posite the 

 initial moinuncnt of the Mexican bonndary,"' Eebruai'y 10,1892, 

 Collected by Dr, E. A. Mearns, LJ. S. A., and E. X, Holzner, 

 Original munl)er 1401, International Boundary Conmiission. 

 Catalogued Api-il 2s, 1802. 



Well-made skin in good condition; skull wkh posterior half of cranial cavity 

 broken away, though many fragments an; present. 



