HODOMYS. 297 
tive lOw nro rE CTE S; 
PAGE 
A. Above tawny ferrugineous; tail unicolor.......... H.allent 297 
B. Above dull fulvous and black; tail bicolor....... H, vetulus 297 
Fia. XLIV. HODOMYS ALLEN!I. ALLEN’S WooD RAT. 
301. alleni (Neotoma), Merr., Proc. Biol. Soc. Wash., vil, 1892, 
i LOS. 
ALLEN’s Woop Rat. 
Type locality. Manzanillo, State of Colima, Mexico. 
Geogr. Distr. State of Colima, Mexico. 
Genl. Char. Size large; tail shorter than head and body, annu- 
lations visible; molar series large; first and second upper molars with 
a lateral triangle on each side; last lower molar S-shaped, and with a 
re¢ntrant angle on outer side. 
Color. Above tawny ferrugineous; sides of face mouse or bluish 
gray; under parts white, basal portion of hairs plumbeous; tail 
blackish, unicolor; hands and feet whitish. 
Measurements. Total length, 472; tail vertebra, 225; hind foot, 
46; ear, 29. Skull: occipito-nasal length, 52; Hensel, 45; zygomatic 
width, 26; interorbital constriction, 5; length of nasals, 19; palatal 
length, 23; length of upper molar series, 10; length of mandible, 26. 
302. vetulus (Hodomys), Merr., Proc. Acad. Nat. Scien. Phil., 1894, 
Be 230) 
GraAy-FACED Woop Rar. 
Type locality, Tehuacan, State of Puebla, Mexico. 
Geogr. Disir. Southern Mexico, State of Puebla. 
Genl. Char. Smaller than H. alleni; tail bicolor; feet white; 
cranial characters comparatively on smaller scale, but palate propor- 
tionately longer; frontals broader and less upturned at margins of 
orbits; third lower molar without antero-external sulcus. 
