174 PEROMYSCUS. 
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s.! Above grayish broccol Drowini< ic a) «ose P. polius 196 
t!” Above pale buy fulvous...1. Gea sane 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........... 5.04: 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 buff and black............. P. hemionotis 199 
zb.’Above ochraceous buff and black. 
a,” ‘Tail above wood brow s)-.5,.5 4. sae ee P. gaurus 199 
by Talk -above:Dlaekyn.cq.0 tn ancnenee P. homochrota 200 
2c. Above pinkish bull amd DIACK 16 2k \ateckies 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. zamore 202 
e.’ Above tawny ochraceous and black...P.m.consobrinus 202 
f.’ Above grayish fawn and black............. 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. ............ P. californicus 203 
b.’’ Sides buify ochraceous. =). . fs. l 6 itckhw P.hylocetes 204 
ce.’ Sides brownish fulvous. 
ay’ otal den ot hy 28 mts ssn corer P. lepturus 204 
b.’”? Smaller and paler i.:.12 us oe eae P. lophurus 204 
c./" Miniatuteiot P. lophurns \.2 5 coc. aa P. simulatus 205 
d.7’ Sides erayish browit.).0< Goes ue eee P. felipensis 205 
jv Above woitorm, clayicolon.e. 44.55. os ee P.amplus 205 
k.’ Above fulvous and black. 
a.’’ Cheeks and sides buffy fulvous..... P. tehuantepecus 206 
b.” Cheeks and sides pale rufous.......... P. oaxacensts 206 
c.’’ Cheeks and sides golden fulvous......... P.comptus 206 
l.’ Above dusky: sealbrowiycicse nee so eves 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 
p.’ Above dusky: i052. oS. case Pie P. sarhynchus 209 
