_Specimens examined_ (13).--NE 1/4 sec. 22, R. 1 E, T. 23 N, 6; 2 mi. N,
5 mi. W Ludlow, 1; 2 mi. S, 11 mi. W Reva, 1; 14 mi. S, 4 mi. W Reva, 4;
15 mi. S, 4 mi. W Reva, 1.
Ord's kangaroo rat is found in sparsely vegetated flatlands throughout
Harding County, although it appears to be uncommon except in localized
areas of relatively sandy soils. Five of seven specimens taken from June
18 through 24, 1961, were young of the year, as were three of six
individuals trapped on May 31, 1968. One adult female (81.1 grams)
obtained on May 31 was lactating and had four placental scars, whereas
another that weighed 67.2 grams evidenced no recent reproductive
activity. An adult male (67.9 grams) taken on May 31 had testes that
measured 9; those of a subadult male (46.5 grams) taken on the same date
measured only 6.
The two May-taken adult females mentioned above still were completely in
winter pelage, but the adult male trapped at the same time was molting.
An adult male (57.2 grams) obtained on June 22 had completed molt save
for a small patch between the ears and immediately behind the head.
~Castor canadensis missouriensis~ Bailey, 1919