NORTH AMERICAN RECENT MAMMALS. 365 



Genus MEGALOMYS Trouessart.'" 



1881. Megalomys Trouessart. Le Naturaliste, vol. 1, p. 357. 



February 1, 1881. Type, Mus pilorides Desmarest. 

 1902. Megalomys Allen, Bull. Amer. Mus. Nat. Hist., vol. 16, 



p. 21. February 1, 1902. 



According to Major (Ann. and Mag. Nat. Hist., ser. 7, vol. 7, p. 205, Feb- 



mary, 1901 >, thi^ genus is not distinguishable from Oryzomys. 



Megalomys desmarestii (Fischer). 



1829. M[vs] desmarestii Fischer, Synopsis Mammalium, p. 316. 

 1885. Hesperomys pilorides Trlte, Proc. U. S. Nat. Mus., vol. 7 



(1884), p. 598. 1885. 

 1902. Megalomys desmaresfi Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 16, p. 21. February 1, 1902. 

 Type Locality. — Martinique, Lesser Antilles. (Extinct?) 



Megalomys Incise (Major). 



1901. Oryzomys lucix Major, Ann. and Mag. Nat. Hist., ser. 7, 



vol. 7, p. 206. February, 1901. 

 1905. [Megalomys] lucix Trouessart, Catal. Mamm. viv. foss., 



suppl., p. 415. 

 Type Locality. — St. Lucia, Lesser Antilles. (Extinct?) 



Genus TYLOMYS Peters. 



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

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

 Peters. 



t*Tylomys buUaris Merriam. 



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



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

 Type Locality. — Tuxtla, Chiapas, Mexico. 



Tylomys fulviv enter Anthony. 



1916. Tylomys fulviventer Anthony, Bull. Amer. Mus. Nat. 



Hist., vol. 35, p. 366. June 9, 1916. 

 Type Locality. — Tacarcuna, District of Darien, Panama. 



*Tylomys nudicaudus (Peters). 



1866. Hesperomys {Tylomys) nudicaudus Peters, Monatsber. 



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

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



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

 1897. [Tylomys] nudicaudus Trouessart, Catal. Mamm. viv. 



foss., p. 520. 

 Tyte Locality. — Guatemala. 



» On account of the existence of the earlier name Megamys (Laueillabp, 1848) applied to another genus, 

 Megalomys has been replaced by Moschomys Trouessart (Ann. and Mac;. Nat. Hist., ser. 7, vol. n, p. 

 388, April, 1903, not of Billberg, 1828) and Moschophoromys Elliot (Field Columb. Mus., publ. 90, zool. 

 ser., vol. 3, p. 270, Mar. S, 1904). This is not in accordance with the provisions of the International Code 

 (art. 36, with accompanying recommendation). The name Megalomus Hall, 1852, differs in etymology 

 as well as in form. 



