116 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
246. Mustela caurina origenes Rhoads. 
1902. Mustela caurina origenes Rhoads, Proc. acad. nat. 
sci. Phila., 1902, p. 458. September 30, 1902. 
Type locality.— Marvine Mountain, Garfield County, Colo¬ 
rado. 
Family PROCYONIDAE. 
Genus POTOS Cuvier and Geoffroy. < 
This genus has been revised by Thomas (Ann. and mag. nat. hist. 
7th ser., ix, p. 266-270, April, 1902). The forms which occur, 
north of South America are : 
247. Potos flavus aztecus Thomas. 
t 
1902. Potos flavus aztecus Thomas, Ann. and mag. nat. hist., 
7th ser., ix, p. 266. April, 1902. 
Type locality.— Atoyac, State of Vera Cruz, Mexico. 
248. Potos flavus megalotus (Martin). 
1836. Cercoleptes megalotns Martin, Proc. zool. soc. London, 
1836, p. 82. 
1902. Potos flavus megalotus Thomas, Ann. and mag. nat. 
hist., 7th ser., viii, p. 266. April, 1902. 
Type locality.— Unknown. The range of the animal includes 
Costa Rica and northern Colombia. 
Genus NASUA Storr. 
249. Nasua narica molaris Merriam. 
1902. Nasua narica molaris Merriam, Proc. biol. soc. Wash¬ 
ington, xv, p. 68. March 22, 1902. 
Type locality. — Manzanillo, State of Colima, Mexico. 
250. Nasua nelsoni Merriam. 
1901. Nasua nelsoni Merriam, Proc. biol. soc. Washington, 
xiv, p. 100. July 19, 1901. 
Type locality.— Cozumel Island, Yucatan. 
