PEROGNATHUS. 357 
toid side of parietal not longest; audital bulle separated anteriorly 
by full width or nearly full width of basisphenoid.”’ 
Bey 20 THE SPECIES AND. SUBSPECIES OF THE SUBGENUS. 
A. Rump without bristles. PAGE 
a. Size small; total length, 136 mm. 
a.’ Above buffy drab and black.......... P. p. arenarius 358 
b. Size medium; total length, 159-191 mm. 
a.’ Above vinaceous buff and black. 
ee iste FOOL, 2404 MIM: 2. le. 2 ysis P. p. angustirostris 358 
RemrbiietOObs 25 Mths 62 gtd. ba aoe P. p. pricu 358 
b.’ Above whitish drab, tinged with fawn...P. p. eremicus 359 
Beer een: Hatt, DIOWMT eo sis ks =a a nthe oe owe P. pernix 359 
= eemove broccoli brown: .........5. 066+ P. p. rostratus 359 
e.’ Above mixed dark buff and black........... P. hellert 360 
c. Size large; total length, 208-242 mm. 
a.’ Above cinnamon and brownish black......P. hispidus 360 
Pee MOVE OUVE DIDWILS. 24.0... 66k oh ease P. h. zacatecas 361 
c.’ Above yellowish brown and black.....P. h. paradoxus 361 
d.’ Above drab brown and black.............. P. baileyt 361 
e.’ Above pale buff and black.......... P.b. rhydinohris 362 
f.’ Above ochraceous buff and black........... P. cnecus 362 
B. Rump with bristles. 
a. Size large. 
a.’ Pelage very coarse, bristly. 
a.’’ Mastoids very small. 
a.’”’ Above pale fawn and black....... P. margarite 363 
b.’” Mastoids moderate. 
a.’”’ Above dark gray, lined with black. 
adie eo Tivo hic: sr ee ere P. spinatus 363 
EAE yA 2c 2 as 015 dn P.s. peninsule 363 
irate 7, PATI iui ace Ae Mek wpe 2 BPN P.s. bryantt 364 
3 
b.’ Pelage moderately coarse, not bristly. 
a.” Above drab gray, lined with black...P. intermedius 364 
eee OSes Cette IEEE ots Sk vo 8k Peas wee P.nelsont 364 
EARN cay eg ekg: | 11-2 da en ee nr P.n. canescens 365 
d.’”’ Above broccoli brown and black. 
2. utp bristles prominent. ..........': P. goldmant - 365 
Db." Ramp brsties undeveloped. ...... 2... Pgs artus: 365 
e.’’ Above dark grizzled yellowish brown 
SAC AMAOM age ey AO Cer Routan te hess oe P. fallax 366 
f’’ Above pale broccoli brown, slightly 
pated wyigte lacks ol. 5 yy Sis. 3s ae) ¢ P. jf. pallidus 366 
