hs) 
P 
NEOTOMA, 277 
that of squamosal joining it at almost a right angle. Mandible with 
long, acute, coronoid process, higher than condyle; roots of lower 
incisors causing protuberances on each side of the jaw; upper molar 
teeth with usually one internal and two external reéntrant loops; 
first and second lower molars with two external and two internal 
loops; last molar with only one of each; upper molars three-rooted ; 
‘lower with but two roots. 
A. Neotoma. Naked-tailed Wood Rats. 
Tail long, naked, round. 
ME Yolo brBeli sean SUBSPE CIES. 
A. Tail naked, scaly, round. 
a. Size large. 
a.’ Under parts whitish or yellowish white. 
a.’’ Tail unicolor. PAGE 
a./’’ Tail all black; upper parts mummy 
brown and brownish black ..........N.distincta 278 
b.’” Tail all dusky; upper parts reddish 
Inienviama lackey es ye Loe ea te hd N. fuscipes 278 
Tail brownish black above, pale 
brown beneath; upper parts reddish 
Jougop\@el thee Mo] 2c) aah ee N.f. macrotis 279 
by Lail bicolor. 
a.’ Above pale Vandyke brown..........1 N. torquata 279 
b.’’” Above grayish fulvous and black....N.cumulator 280 
Me mMOen WArtSiOAMC SIAL .y 5... ee ce od N.bryantt 280 
b. Size medium or small. 
a.’ Under parts white. Tail bicolor. 
a; mAbovemusty red and black............ NV. ferruginea 280 
b.”” Above grayish lead color and dark 
TERION 0%, 1 ee a N.micropus 281 
c.’’ Above ochraceous buff and black. 
ee MME eins of vs se Me ei eS eG N. leucodon 281 
Pee is Sa coy ole sate bo av esis dN AODYITOMS- | 282 
d.’’ Above pale yellowish brown and dark 
IMEI RES Mr Sa ess daz Glace aw ob is LM IAMECOMG, 9282 
e.’’ Above buffy ochraceous and black......... N.navus 282 
f.’’ Above dark fulvous brown and black..... N. sinaloe 283 
g.’’ Above grayish brown and black, tinged 
with fulvous. 
a.’ Hairs on middle of body beneath 
WMD OM OGG lac ss ss 8 oe Wa ean miele os N. arenacea 283 
