Feb., 1912. Mammals of Illinois and Wisconsin — Cory. 197 



Special characters — Largest species of the genus, which occurs within 

 our Hmits; very similar to P. leucopus, but may be distinguished 

 by size. 



Description — Middle of back from crown to base of tail dark brown 

 shading to cinnamon brown on the sides; under parts white or 



Peromyscus gossypinm 



P. g. megacephalus 



\ 



OF MHX 



^■^ '-0 ^Arca of Intergrai 



intergradat/on 



Map illustrating approximate distribution of the Cotton Mice (Peromyscus gossypinus and 

 racesj in eastern United States. 



Peromyscus gossypinus (LeConte). (Proc. Acad. Nat. Sci. Phila., VI, 1853, p. 411.) 

 Type locality — LeConte Plantation near Riceboro, Liberty Co., Georgia. Gen- 

 eral color darker and size smaller than megacephalus. Does not occur within 

 our limits. 



Peromyscus g. megacephalus (Rhoads). Type locality — Woodville, Alabama. 

 Similar to gossypinus, but slightly paler and larger. Description and measure- 

 ments as previously given. 



Peromyscus g. palmarius Bangs. (Proc. Biol. Soc. Wash., X, 1896, p. 124.) Type 

 locality — Oak Lodge, east coast of Florida opposite Micco, Brevard Co. Smal- 

 ler and paler than gossypinus. 



Peromyscusg. anastasce (Bangs). (Proc. Bost. Soc. Nat. Hist., XXVIII, 1898, p. 

 I95-) Type locality — Point Romo, Anastasia Island, near St. Augustine, 

 Florida. About equal in size to palmarius, but palest of the group. 



