MAMMALS 
Miller, Jr., for checking the nomenclature, which 
seems to be as fleeting in mammals as in birds. 
Marsupiaria. 
1. Virginia Opossum. Didelphis virginiana vir- 
gimana Kerr. Accidental, one record. 
UNGULATA. 
2. Northern Virginia Deer. Odocoileus virgini- 
anus borealis Miller. Formerly common, extermin- 
ated, records up to 1837. 
RovENTIA. 
3. Prairie Cottontail.  Sylvilagus floridanus 
mearnst Allen. Common, first records about 1884. 
(“ Ottawa Naturalist,” 1908, pp. 158-9.) 
4. Southern Varying Hare. Lepus americanus 
virgumianus (Harlan). Formerly common, only 
recently exterminated; still found just outside in 
limits of this list. 
5. Jumping Mouse. Zapus hudsonius hudsonius 
(Zimmermann). Generally distributed, not very 
common. 
6. Red-backed Mouse. Lvotomys gapperi gapperi 
(Vigors). Described by Gapper in 1830; no recent 
records. 
7. Meadow Mouse. Microtus  pennsylvanicus 
pennsylvanicus (Ord). Abundant. 
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