_Oryzomys mexicanus_ Allen, Bull. Amer. Mus. Nat. Hist., 9:52,
March 15, 1897, type from Hacienda San Marcos, 3,500 ft.,
Tonila, Jalisco.
_Oryzomys couesi mexicanus_, Goldman, N. Amer. Fauna, 43:33,
September 23, 1918.
_Range._--Semitropical and tropical western part of the state.
_Specimens examined_, 14: nos. 52018-52023, 52063-52070, from 1,040
ft., 10 kms., W Apatzingan.
_Remarks._--These specimens are notably paler and have shorter
tooth-rows than those referred to _O. c. regillus_.
=Oryzomys fulvescens lenis= Goldman