RACCOONS OF NORTH AND MIDDLE AMERICA 49 



pterygoids more divergent posteriorly; molariform teeth smaller. 

 Similar in general to those of P. /. marinus and P. I. inesperatus, 

 ])iit distinguished by narrower frontal region and smaller molariform 

 teeth. 



Measurements. — Type: Total length, 694 mm.; tail vertebrae, 263; hind foot, 

 118; weight (pounds), 8.5. Average of five adult males from Big Pine Key and 

 No Name Key: 710 (656-738); 247 (216-273); 111 (108-113); weight (pounds), 

 8 (7.5-9.5). Average of four adult females from Torch Key (type locality), 

 Boca Chica Key, and No Name Key: 688 (660-720); 240 (226-253); 105 (103- 

 110); weight (pounds), 6.1 (5.5-6.5). Skull: Type: Greatest length, 111; 

 condylobasal length, 104.7; zygomatic breadth, 66.7; interorbital breadth, 19.8: 

 least width of palatal shelf, 14.9; maxillary tooth row (alveoli), 38.8; upper 

 carnassial, crown length, 7.8, crown width, 8.5. Average of seven adult males 

 from Big Pine Key and No Name Key: Greatest length, 109.8 (105-113.8); 

 condylobasal length, 102.9 (97.8-106.2); zygomatic breadth, 69.4 (62.5-78.1); 

 interorbital breadth, 21.8 (19.6-23.9); least width of palatal shelf, 14.8 (13.9-16); 

 maxillary tooth row, 39.2 (38.1-40.4) ; upper carnassial, crown length, 7.8 (7.6-8), 

 crown width, 8.6 (8-9). Average of four adult females from Torch Key, Boca 

 Chica Key, and No Name Key: Greatest length, 104.9 (101-107.7); condylobasal 

 length, 94 (96.5-100.5); zygomatic breadth, 61.9 (60.7-64.2); interorbital breadth, 

 21.1 (20-22.2); least width of palatal shelf, 14.4 (14-15); maxillary tooth row, 

 38 (37.4-38.5); upper carnassial, crown length, 7.5 (7.3-7.8), crown width, 8.3 

 (7.8-8.8). 



Remarks. — The home of this race of raccoons is on the group of 

 Florida Keys farthest from the mainland. As is the case with the 

 other Florida Key raccoons they live mainly, and sometimes entirely, 

 in mangrove swamps without access to fresh water except dining rains. 

 The brilliant light of their environment may have affected their 

 general color more than the others, as suggested by their pale, faded 

 tints. In general form and proportions the skull resembles that of 

 P. I. elucus rather more closely than those of its geographically nearer 

 insular relatives. It is much smaller, however, and suggests a minia- 

 ture of that of the mainland animal. 



S2)ecimens examined. — Total number, 33, as follows: 



Florida: Big Pine Key, 16; ^i Boca Chica Key, 2; Geiger's Key, 2; '^'' Key West, 3 

 (1 skull without skin); ^3 No Name Key, 5; Stock Island, 3; 23 Torch Key 

 (type locality), 2. 



PROCYON LOTOR FUSCIPES Mearns 



Texas Raccoon 



Proci/on lotorfiiscipes Mearns, Biol. Soc. Washington Proc. 27: 63, March 20, 1914. 



Type locality. — Las Moras Creek, Fort Clark, Kinney County, Tex. 

 (altitude 1,011 feet). 



■' Ten in Mus. Coiup. Zool. 



" Mus. Comp. Zool. 



23 One in Mus. Coinp. Zool. 



