PROCEEDINGS : BOSTON SOCIETY NATURAL HISTORY. 
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93. Oryzomys yucatanensis Merriam. 
1901. Oryzomys yucatanensis Merriam, Proo. Washington 
acad. sci., hi, p. 29-1. July 26, 1901. 
Type locality.— Chichen-Itza, Yucatan. 
94. Oryzomys zygomaticus Merriam. 
1901. Oryzomys zygomaticus Merriam, Proc. Washington 
acad. sci., hi, p. 285. July 26, 1901. 
Type locality.— -Nenton, Guatemala. 
Subgenus Oligoryzomys Bangs. 
1900. Oligoryzomys Bangs, Proc. New England zool. club, 
i, p. 94. February 28, 1900. Type.— Oryzomys navus 
Bangs. 
95. Oryzomys vegetus Bangs. 
1902. Oryzomys ( Oligoryzomys ) vegetus Bangs, Bull. mus. 
comp, zool., xxxix, p. 35. April, 1902. 
Type locality.— Boquete, Chiriqui, Panama. Altitude, 4000 
feet. 
Genus ZYGODONTOMYS Allen. 
Oryzomys chrysomelas Allen, p. 92, now stands as : 
Zygodontomys chrysomelas (Allen). 
1902. Zygodontomys chrysomelas Bangs, Bull. mus. comp, 
zool., xxxix, p. 37. April, 1902. 
96. Zygodontomys seorsus Bangs. 
1901. Zygodontomys seorsus Bangs, Amer. mat., xxxv, p. 
642. August, 1901. 
Type locality.— San Miguel Island, Panama. 
Genus REITHRODONTOMYS Giglioli. 
97. Reithrodontomys australis.vulcanius Bangs. 
1902. lleithroddntomys australis vulcanius Bangs, Bull. mus. 
comp, zool., xxxix, p. 38. April, 1902. 
