PUTORIUS. 531 



KEY TO SPECIES AND SUBSPECIES IN SUMMER PELAGE. 



A. Tail more than half as long as head and body; 

 white streak between eyes. 



a. White spot on forehead. 



a/ Sagittal crest absent ; interorbital constric- 

 tion slight ; audital bullae small and narrow. PAGE 



a." Small P. tropicalis 531 



b." Large P. t. perdus 531 



b/ Sagittal crest present; interorbital con- 

 striction considerable. 



a." Audital bullae obliquely truncate an- 

 teriorly. 



a/" Under parts orange P. frenatus 532 



b/" Under parts pale yellowish 



ochre P. f. neomexicanus 533 



b." Audital bullae narrow; under parts sal- 

 mon P. /. goldmani 533 



c." Audital bullae small, high on inner side; 



under parts orange buff P. f. leucoparia 534 



b. No white spot on forehead P. affinis 534 



503. tropicalis (Putorius), Merr., N. Amer. Faun., No. n, 1896, p. 30. 

 TROPICAL WEASEL. 



Type locality. Jisco, State of Vera Cruz, Mexico. Altitude, 

 6,000 feet. 



Geogr. Distr. State of Vera Cruz, Mexico, and along coast into 

 Guatemala. 



Genl. Char. Smaller and darker than P. frenatus; white mark- 

 ings less and color paler on belly. 



Color. Upper parts deep umber brown with a fulvous tinge; 

 head, ears, and neck black; white band between eyes and ears, and 

 patch between eyes; throat and fore feet ochraceous buff; belly and 

 inner sides of thighs orange buff; inner side of hind feet and toes 

 buffy; forehead and wrists yellow; tail with apical fourth black. 



Measurements. Total length, 442; tail vertebrae, 175; hind foot, 

 50. Skull: basal length, 37.5; Hensel, 36.5; zygomatic width, 22.5; 

 across postorbital processes, 12; interorbital width, 9; palatal length, 

 16; postpalatal length, 21.5. 



a. perdus (Putorius), Merr., Proc. Biol. Soc. Wash., xv, 1902, p. 67. 

 TEAPA WEASEL. 



Type locality. Teapa, State of Tabasco, Mexico. 



Geogr. Distr. Known only from type locality. 



