124 Bangs The Cotton Mouse, Peromyscus Gossypinus. 



Size. Average measurements of six adult specimens from type locality : 

 total length, 183; tail vertebrae, 79.5; hind foot, 24.45. Maximum size 

 (of largest old adult in above average) : total length, 196 ; tail vertebrae, 

 84 ; hind foot, 25. 



Specimens examined, 6, all from the type locality. 



Peromyscus gossypinus palmarius subsp. nov. 



Type from Oak Lodge, on east peninsula opposite Micco, Brevtird 

 County, Florida. No. 3224, 9 old adult, collection of E. A. and O. Bangs. 

 Collected by 0. Bangs February 23, 1895. Total length, 183 ; tail verte 

 brae, 74; hind foot, 21. 



Geographic distribution. Peninsular Florida, north at least to Brevard 

 County on the east and Citrus County on the west. 



Subspec'ific characters. About the size of typical P. gossypinus ; hind foot 

 shorter; colors much paler and more yellowish ; no decided darker dorsal 

 band ; a black orbital ring. 



Color. Adult: Upper parts varying, according to freshness of pelage, 

 from bright russet to wood brown, usually a few darker hairs scattered 

 along middle of back, but not enough to form a dorsal band ; a black 

 orbital ring ; under parts grayish white, the hairs plumbeous at base ; 

 ears dusky ; tail bicolored, dusky above, white below ; feet grayish white. 



Size. Average measurements of twenty adult specimens from type 

 locality: total length, 181; tail vertebrae, 71.88; hind foot, 21.55. Maxi 

 mum size (of largest old adult in above average) : total length, 206 ; tail 

 vertebrae, 83 ; hind foot, 22. 



Remarks. Peromyscus gossypinus palmarius often shows a pectoral spot 

 of yellowish brown, sometimes of large size. 



It is often difficult to tell the young in the second pelage of palmarius 

 from the young of typical gossypinus, but as a rule they are lighter in 

 color, more grayish, less sooty, and have the dorsal stripe much less well 

 defined. 



Specimens examined, 166, from the following localities in Florida: Oak 

 Lodge, east peninsula opposite Micco, Brevard County, 111 ; Micco, 3 ; 

 Flamingo, 19 ; Miami, 2; Jupiter Inlet, 3 ; Crystal River, 4 ; Citronelle, 3 ; 

 Blitches Ferry, Citrus County, 21. 



Peromyscus gossypinus nigriculus subsp. nov. 



Type from Burbridge, Plaquemines Parish, Louisiana. No. 2731, 9 adult, 

 collection of E. A. and 0. Bangs. Collected by F. L. Small January 30, 

 1895. Total length, 174; tail vertebras, 79; hind foot, 24. 



Geographic distribution. Bayou region of the coast of Louisiana. 



Subspeclfic characters. Size smallest of the gossypinus series ; hind foot 

 about as in typical gossypinus ; tail proportionally longer ; colors verv dark ; 

 a broad dorsal band nearly black ; ears and upper surface of tail black ; 

 a black orbital ring. 



Color. Adult: upper parts varying from vandyke brown to sepia, often 

 with a sooty cast ; darkening along middle of back into a broad dorsal 



