ORYZOMYS. 



249 



FIG. 40. ORYZOMYS VEGETUS. 

 Mus. Comp. Zool. Twice nat. size. 



UPPER TOOTH ROW. LOWER TOOTH ROW. 



Enlarged 10 times Enlarged 10 times. 



241. costaricen is (Oryzomys), Allen, Bull. Amer. Mus. Nat. Hist., 



1893, p. 239. 

 EL GENERAL RICE RAT. 



Type locality. El General, Costa Rica. 



Geogr.Distr. Costa Rica, Central America. Altitude, from 2,150 

 to 10,342 feet. 



Genl. Char. Size small; tail much longer than head and body. 

 Skull with superciliary bead absent. 



Color. Above varying from yellowish brown to yellowish chest- 

 nut, lined heavily with black; sides ochraceous buff; under parts deep 

 buff; lateral line fulvous; tail naked, unicolor, pale brown; hands and 

 feet buffy white; ears dusky brown on outside, yellowish inside. 



Measurements. Total length, 196; tail vertebrae, 117; hind foot, 

 23; ear from crown, 7. Skull: total length, 21; basal length, 17.8; 

 zygomatic width, 11.4; width of braincase, 10.1; interorbital con- 

 striction, 4.3; length of nasals, 8; length of upper molar series, 3. 

 (ex Type.) 



242. *vegetus (Oryzomys}, Bangs, Bull. Mus. Comp. Zool., xxxix,i902, 

 p. 35- 



*This is considered by Dr. J. A. Allen to be the same as 0. costaricensis. 

 See Bull. Am. Mus. Nat. Hist., 1904, p. 69. 



