Howell — Two New Cotton Rats from Florida. 75 



known in detail; it seems to be confined mainly to islands or beaches on 

 the southwest coast of Florida. Specimens from the mainland at 

 Englewood are somewhat intermediate in color between insulicola and 

 floridanus, but are best referred to the former. 



The writer is indebted to Dr. Wilfred H. Osgood for calling attention 

 to this form and for permission to describe it. 



Specimens examined. — Total number, 21, from localities as follows: 

 Florida: Captiva Island, 2'; Sanibel Island, 10'; Chadwick Beach 

 (near Englewood), 3; Englewood, 5; Pine Island (Lee County, 1.^ 



Some specimens from Sanibel Island are slightly more suffused with 

 buff on the back and sides, but all are paler than in floridantis. 



Measurements. — Type (adult female): Total length, 302; tail verte- 

 brae, 112; hind foot, 32. Skull: Occipitonasal length, 38.1; zygomatic 

 breadth, 21; cranial breadth, 15.9; length of nasals, 15; maxillary tooth 

 row, 6.8. 



Remarks. — The range of this pale, gray race of the cotton rat is not 

 known in detail; it seems to be confined mainly to islands or beaches on 

 the southwest coast of Florida. Specimens from the mainland at 

 Englewood are somewhat intermediate in color between insulicola and 

 floridanus, but are best referred to the former. 



The writer is indebted to Dr. Wilfred H. Osgood for calling attention to 

 this form and for permission to describe it. 



Specimens examined. — ^Total number 21, from localities as follows: 

 Florida: Captiva Island, 2'; Sanibel Island, 10'; Chadwick Beach (near 



Englewood), 3; Englewood, 5; Pine Island (Lee County), I.'' 



United States Department of the Interior, Fish and Wildlife Service, 

 Washing:ton, D. C. 



' Field Mus. Nat. Hist. 

 ' Amer. Mus. Nat. Hist. 



