280 NEOTOMA. 
Color. Above pale Vandyke brown, hairs tipped with black; 
darkest on dorsal line; under parts white with a yellow tinge; breast 
crossed by a pale brown collar; chin white; hands and feet white; 
tail covered with short hairs, above clove brown, sides and beneath 
whitish; ears seal brown. 
Measurements. Total length, 498; tail vertebre, 160; hind foot, 
35; ear, 21. Skull: total length, 45; zygomatic width, 23; length of 
upper molar series, 9; length of mandible, 25; length of lower molar 
series, 9. 
278. cumulator (Neotoma), Mearns, Proc. U.S. Nat. Mus., 1898, p. 
so3. Elliot, Syn. N. Am. Mamm., 1gor, p. 154. 
CoLLector Woop Rat. 
Type locality. Old Fort Yuma, San Diego County, California. 
Geogr. Distr. Lower California and State of Sonora, Mexico, 
southern California. 
Genl. Char. Size large; color similar to that of N. intermedia, 
but paler; nasals broad anteriorly. 
Color. Above grayish fulvous, lined with black; gray on limbs 
and ochraceous buff on sides; feet and under parts white; tail black 
above, white beneath; ears mixed gray and black. 
Measurements. Total length, 406; tail vertebre, 188; hind.foot, 
37; ear, 30.5. Skull: greatest length, 47.5; greatest width, 23. 
279. bryanti (Neotoma), Merr., Amer. Nat., xxI, 1887, p. IgI. 
Cerros IstAND Woop Rat. 
Type locality. Cerros or Cedros Island, Lower California, Mexico. 
Geogr. Distr. Known only from type locality. 
Genl. Char. Size large; tail naked; specimen imperfect. 
Color. General hue dark slate, on both upper and under parts; 
fulvous patch behind ear; hands and feet white. 
Measurements. Total length, 372; tail vertebre, 165; hind foot, 
38; ear, 260. Skull: total length, 48; basal length, 44; zygomatic 
width, 25; mastoid width, 20; interorbital constriction, 5; length of 
nasals, 17.5; breadth of nasals anteriorly, 5; palatal length, 21; 
length of upper molar series, 8. 
280. ferruginea (Neotoma), Tomes, Proc. Zodl. Soc., 1861, p. 282. 
Rusty Woop Rat. 
Type locality. Duenas, Guatemala. 
Geogr. Distr. Tehauntepec, State of Oaxaca, Mexico, south into 
Guatemala. 
Genl. Char. Tail about as long as head and body; similar to 
N. juscipes, but smaller and redder. 
