NEOTOMA. NELSONIA, 
FULVOUS-BELLIED Woop Rat. 
Type locality. Toluca Valley, State of Mexico, Mexico. 
Geogr. Distr. State of Mexico, Mexico. 
Genl. Char. Similar to N. tenuicauda, but larger; ear 
M3 16. 
Nelsonia Merr., Proc. Biol. Soc. Was KI, 1897 277, figs. 14-15 
Type A 1 n 1 Merriam 
Skull similar to that o irge Peron but flatter torbital 
slits fainth tching upper sur e oO I “oot of zygoma 
interior angle of antorbital slits protrudes forwards as processes; teeth 
large; crowns flat, with deep reéntrant angles; third upper molar 
with one deep external reéntrant angle separating the crown into 
Fic. 46. NELSONIA NEOTOMODON. 
No. 90893 Am, Mus. Nat. Hist. Coll. Nat. size. 
UPPER TOOTH ROW. LOWER TOOTH ROW 
Enlarged 6 times. Enlarged 6 times 
