MILLER ANI) KEEN: NORTH AMERICAN MAMMALS. 79 
Genus TYLOMYS Peters. 
55. Tylomys bullaris Merriam. 
1901. Tylomys bullaris Merriam, Proc. Washington acad. 
sci., hi, p. 561. November 29, 1901. 
Type locality. — Tuxtla, State of Chiapas, Mexico. 
56. Tylomys tumbalensis Merriam. 
1901. Tylomys tumbalensis Merriam, Proc. Washington 
acad. sci., hi, p. 560. November 29, 1901. 
Type locality. — Tumbala, State of Chiapas, Mexico. 
Genus Ilolochilus Brandt, p. 89. The West Indian species are 
now placed in: 
Genus MEGALOMYS Trouessart. 
1881. Megalomys Trouessart, Le Naturaliste, i, p. 357. 
February 1, 1881. 
«/ ' 
1902. Megalomys Allen, Bull. Amer. mus. nat. hist., xvi, p. 
21. February 1, 1902. 
Type. — Mus pilorides Pallas. 
According to Maj or, (Ann. and mag. nat. hist., 7th ser., vii, p. 
205, February, 1901) this genus is not distinguishable from 
Oryzomys. 
Holochilus pilorides (Pallas), p. 89. This now stands as: 
Megalomys desmarestii (Fischer). 
1829. M[us ] desmarestii Fischer, Synopsis mammalium, 
p. 316. 
1902. Megalomys desmaresti Allen, Bull. Amer. mus. nat. 
hist., xvi, p. 21. February 1, 1902. 
Type locality. — Island of Martinique, West Indies. 
According to Major (Ann. and mag. nat. hist., 7th ser., vii, p. 
205, February, 1901) the proper name for this species is Oryzomys 
piloris (Zimmermann). 
57. Megalomys luciae (Major). 
1901. Oryzomys luciae Major, Ann. and mag. nat. hist., 7th 
ser., vii, p. 206. February, 1901. 
Type locality. — Island of Santa Lucia, West Indies. 
