NORTH AMERICAN LAND MAMMALS. 179 



Genus TYLOMYS Peters. 



1866. Tylomys Peters, Monatsber, k. preuss. Akad. Wissensch. 

 Berlin, p. 404. Type, Hesperomys {Tylomys) nudicaudus 

 Peters. 



t*Tylomys bullaris Merriam. 



1901. Tylomys lullaris Merriam, Proc. Washington Acad. Sci., 



vol. 3, p. 561. November 29, 1901. 

 Type Locality. — Tuxtla, State of Chiapas, Mexico. 



*Tylomys nudicaudus (Peters). 



180G. Hesperomys (Tylomys) nudicaudus Peters, Monatsber. 



k. preuss. Akad. Wissensch. Berlin, p. 404, pi. 1, figs. 1-4. 

 1885. Hesperomys nudicaudus True, Proc. U. S. Nat. Mus., 



vol. 7 (1884), p. 598. 1885. 

 1897. [Tylomys] n wlicaudus Trouessart, Catal. Mamm. viv. foss., 



p. 520. 

 Type Locality. — Guatemala, 



*Tylomys panamensis (Gray). 



1873. Neomys panamensis Gray, Ann. and Mag. Nat. Hist., 



ser. 4, vol. 12, p. 417. 

 1885. Hesperomys panamensis True, Proc. L^. S. Nat. Mus., 



vol. 7 (1884), p. 598. 1885. 

 1897. [Tylomys] panamensis Trouessart, Catal. Mamm. Adv. foss., 



p. 520. 

 Type Locality. — Panama. 



t^Tylomys tumbalensis Merriam. 



1901. Tylomys tumbalensis Merriam, Proc. Washington Acad. 



Sci., vol. 3, p. 560. November 29, 1901. 

 Type Locality. — Tumbala, State of Chiapas, Mexico. 



*Tylomys watsoni Tliomas. 



1899. Tylomys watsoni Thomas, Ann. and IMag. Nat. Hist., 



ser. 7, vol. 4, p. 278. October, 1899. 

 Type Locality. — Bogava, Chiriqui, Panama. Altitude, 800 

 feet. 



Genus OTOTYLOMYS Merriam. 



1901. Ototylomys Merriam, Proc. Washington Acad. Sci., vol. 3, 

 p. 561. November 29, 1901. Type, Ototylomys phyllotis 

 Merriam. 



Ototylomys fumeus Allen. 



1908. Ototylomys fumeus Allen, Bull. Amer. Mus. Nat. Hist., 

 • vol. 24, p. G5». October 13, 1908. 

 Type Locality. — Matagalpa, Nicaragua. 



