56 Field Museum of Natural History — Zoology, Vol. XL 



Map illustrating approximate distribution of Opossums in eastern United States. 

 Stragglers occasionally occur slightly farther north. 



Didelphis virginiana Kerr. Type locality — Virginia. Description as previously 

 given. 



Didelphis v. pigra Bangs. (Proc. Bost. Soc. Nat. Hist., XXVIII, 1898, p. 172.) 

 Type locality — -Oak Lodge, opposite Micco, Brevard Co., Florida. Similar 

 but smaller and somewhat darker than virginiana; tail longer and more slender. 



