United States National Museum - si-pddr - Smithsonian Institution

76 MACROQEOMYS ZYGOGEOMYS DICROSTONYX LEMMUS.
Macrogeomys dolichocephalus Merriam.
North AiiKT. Fauna, No. «, p. ISi), pi. r>- pi. 10, iia. 7; i>l. ^^^, i\i:. 19, January 31,
1895.
sVsVs- ^1^J>^ {i»^l skull. Adult niiilc. San Joso, Co.>^ta Rica. JanuaiT,
18(56. Collected l)y flose C. Zeledon. Explorations in Costa
Rica under Dr. A. Von Frantzius. Skin catalogued Novend>er 0,
1866; skull, October 31, 1893.
Skin not very well made up, 1)ut apparently in good condition; skull nearly
perfect, .somewhat damaged about pterygoids, and a (juadrangular hole is in
supraoccipital, running up from foramen magnum.
Genus ZYGOGEOMYS.
Zygogeomys trichopus ]\Ierriaui. Biological Survey collection.
North Ainer. Fauna, No. S, i)p. liXMOS, pi. (i; pi. 13, fig. 24; ]>\. 14, fig. 1;
lig. 10, January 31, 1895.
jtl. In,
50107. Skin and skull. Adult male. Nahuatziii, Michoacaii. Mexico.
October 11, 1892. Collected by E. W. Nelson. Original number
3571.
Well-made skin in good condition; skull pcrfi'ct.
Family MFRID.E.
Genus DICROSTONYX.
Dicrostonyx unalascensis ^Nlerriam. r)i()logical Surve}' Collection.
Troc. Wash. Acad. Sci., II, ]>. 25, :\Iarcli 14, 1900.
!»9. Skull oidy. Adult. Unalaska, Alaska. July 8, 1899. Collected
by Dr. C. Hart Merriam.
Nearly perfect skull from owl pellet.
Lemmus minusculus Osgood. •
Genus LEMMUS.
North Amcr. Fauna, No. 24, pp. 36-37, November 23, 1904.
Biological
Survey collection.
119612. Skin and skull. Adultmale. Kakhtul Rivc'r, near mouth of
Malchatna River, Alaska. September 1, 1902. Collected by W. H.
O.siTood iuid A. G. Maddren. Original iuuu])er 1903.
Well-made skin in good condition; skull perfect.
Myodes nigripes True.
Diagnoses of New North American INIammals, p. 2, April 2(3, 1894. (Reprinted
in Troc. U. S. Nat. Mus., XVII, No. 999, p. 242, November 15, 1894.)
= Lemmus nigripes (True). See Miller, North Amer. Fauna, No. 12, p. 37, July
23, 189(J.
59152. Skin and skull. Adult male. St. (Jeorge Island, Alaska.
August 18, 1892 (or 1893). C'ollectcd by C. H. Townsend, U. S.
Bureau of Fisheries steamer Alhafross. Catalogued February 5,
1894.
Well-madi^ skin in good condition; skull with part of left zygoma and both
coronoid processes of mandil)le absent; otherwise jierfect.