MILLER AND REHN: NORTH AMERICAN MAMMALS. 177 
Family LEPORIDAE. 
Genus ROMEROLAGUS Merriam. 
1896. Homerolaffus Meeriam, Proc. biol. soc. Washington, x, p. 
173. December 29,1896. Type. — RomeroUufus nelscmi Merriam. 
Romerolagus nelsoni Merriam. 
1896. Romerolagus nelsoni Merriam, Proc. biol. soc. Wash¬ 
ington, X, p. 173. December 29, 1896. 
Type locality. — West slope of Mount Popocatepetl, State of 
Mexico, Mexico. Altitude, 11,000 feet. 
According to an anonymous reviewer in Natural Science (x, p. 
151, March, 1897) this animal received the name Repus diazi in 1893 
(Ferrari-Perez, Exposicion Internacional Columbiana de Chicago en 
1893. Catalogo Comision Geografico-Explorada de la Republica 
Mexicana, pi. 42, March, 1893). 
Genus LEPUS Linnaeus. 
1758. Lepus Lixxaeus, Syst. nat., x ed., i, p. 57. Type. — I^epxis 
timidus Lixxaeus. 
Subgenus Lepus Linnaeus. 
* Lepus americanus Erxleben. 
1777. \Lepus'\ americanus Erxleben, Syst. regni anim., i, p. 
330. 
1885. I^epus americanus americanus True, Proc. U. S. nat. 
mus., VII (1884), p, 601. 1885. 
Type locality. — Vicinity of Hudson Bay, Canada. 
* Lepus americanus bairdii (Hayden). 
1869. Lepus bairdii Hayden, Amer. nat., iii, p. 115. May, 
