174 PEROMYSCUS. 
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s” Above grayish broccoli brown: ¢ oases eee P. polius 196 
t.. Above pale: buity tulveus. . 3 ae eee P. gratus 196 
u.’ Above ochraceous buff and dusky........ P. g. gentilis 197 
v.’ Above mixed buffy and brownish black...... P. pavidus 197 
w.’ Above mixed ochraceous. 94 °.--2 2 442. P.madrensis 197 
x.’ Above sandy rufous lined with black........... P.eva 198 
y.’ Above dark brown tinged with rufous...... P. nudipes 198 
z.’ Above pale yellowish gray and black...... P.merriamt 198 
za.’Above cream) butt and black. 222.5242. P. hemtonotis 199 
zb.’Above ochraceous buff and black. 
aw Tal above wood brown 4-15 - eeeee P. gaurus 199 
ib. Ral above blacker sy. 42 tee been P. homochroia 200 
zc.’ Above pinkish @ufi and black. =. .....2. 232 P. oresterus 200 
C. Size large, not under 230 mm. in total length; ears large. 
a. Tail more than half the length of head and body. 
a.’ Above cinereous gray lined with black...... P.leucurus 200 
b.’ Above pale brown tinged with buff........ P.1. gadovt 201 
c.’ Above gray tinged with fulvous........ P.melanophrys 201 
d.’ Above darker, tawny band on breast....P.m. zamoreé 202 
e.’ Above tawny ochraceous and black...P.m.consobrinus 202 
i. hove grayish fawn and blacks aan. P.xenurus 202 
g.’ Above grayish brown, face tawny........... P. zelotes 203 
h.’ Above light brownish gray and black....... P. insignis 203 
i.’ Above dark gray brown and black. 
a. sides yellowish, brown. =. se essere P. californicus 203 
bb: sides buthy, ochraceouse,. athe tia eee P.hylocetes 204 
c.’’ Sides brownish fulvous. 
as’ Total lensth; 238:muni ie. eee P. lepturus 204 
bY’, Smaller and palersa:)5 .0 eee eee P. lophurus 204 
ce.” Miniature of P. lophurus...........- P. stmulatus 205 
de Sidesserayish; browmnic..... soon es eae P. felipensis 205 
Jj. vakbove unitorm clay color .55 7 wen eee P.amplus 205, 
k.’ Above fulvous and black. 
a.’ Cheeks and sides buffy fulvous..... P. tehuantepecus 206 
b. ‘Cheeks: and’sidespale raious. (nasa P. oaxacensits 206 
c.’’ Cheeks and sides golden fulvous......... P.comptus 206 
lv. Above dusky seal brown yeh... oe P.m. orizabe 207 
m.’ Above grayish fulvous and black ........ P.m.saxatilis 207 
n.’ Above dusky brown, almost black....P. m. totontepecus 208 
o.’ Above grayish brown and black. 
a.’ Sides pale fulvous, upper lip gray........ P. auritus 209 
b.’” Sides reddish fulvous, upper lip black...... P.furvus 208 
pe Abowesdusgkey 3.2. 002). Sc) eee ete eee P. zarhynchus 209 
