Deming Station, Matagordo, and Velasco, Texas, are three places from which J. A. Allen (Bull. Amer. Mus. Nat. Hist., 14:162, May 28, 1901) listed specimens as _Didelphis virginiana_. The specimens concerned are in the Biological Surveys Collection of the U.S. Nat. Museum and bear catalogue numbers as follows: Deming Station, 32430/44266, 32432/44268, 32433/44269; Matagordo, 32431/44267; Velasco, 32812/44833. In each specimen the tail is shorter than the head and body. The specimen from Velasco is semi-black, has the basal tenth of the tail black and there is no white on the ears or tail. The specimen from Matagordo is grayish, has the basal fifth of the tail black, ears black, the right hind foot black, but there is some white on the toes of the left hind foot and on each of the forefeet. Of the three specimens from Deming Station, all are in the gray color-phase. The first has the tail black only as far from the base as there is hair and there is considerable whitish on the hind toes. The second specimen has the basal fifth of the tail black and a slight amount of whitish on the hind toes. The third specimen has the basal third of the tail black and the toes are all black. In the sum total of their characters the specimens mentioned above are referable to _Didelphis marsupialis pigra_. These five specimens, and indeed the three from Deming Station alone, show intergradation in coloration of the feet between _Didelphis marsupialis texensis_ and _Didelphis virginiana pigra_. Probably there is three-way intergradation here at Deming Station in that _D. v. virginiana_ immediately to the north is involved. The specimens mentioned above, along with the information recorded by Davis (_loc. cit._) and other authors (for example, J. A. Allen, _loc. cit._, and Bull. Amer. Mus. Nat. Hist., 16:249-279, August 18, 1902), give basis for arranging the North American _Didelphis_ as follows: _Didelphis marsupialis virginiana_ Kerr. 1792. _Didelphis virginiana_ Kerr, Animal Kingdom, p. 193, type locality Virginia. _Didelphis marsupialis pigra_ Bangs. 1898. _Didelphis virginiana pigra_ Bangs, Proc. Boston Soc. Nat. Hist., 28:172, March, type from Oak Lodge, opposite Micco, Brevard Co., Florida. _Didelphis marsupialis texensis_ J. A. Allen. 1901. _Didelphis marsupialis texensis_ J. A. Allen, Bull. Amer. Mus. Nat. Hist., 14:172, June 15, type from Brownsville, Cameron County, Texas. _Didelphis marsupialis californica_ Bennett. 1833. _Didelphis Californica_ Bennett, Proc. Zool. Soc. London, p. 40, May 17, type probably from northwestern part of present Republic of Mexico.