Merruvm Desrnpfions of N<’in lirarf< fr())ii North America. ISo 
breadth in prtiportitm to basal length inucli j^reater than in any otlun- 
true (iriz/Jy, al)()nt (uinallin^ tliat of / '/'.sons' ]; sagittal (O'c'st sliort. 
Last upper molar largi', its. heel normally vei'y lon^. 
Cranial characters of adult females. — SUnll ratbei' lonj; and narrow, 
with broadly spreading zy^'oinata and sti'on^ly dishc'd fronto-iiasal repdon ; 
fi'ontal sbii'ld rather flat, ben'ornin^' flatten' with advancing a^e, snleate 
between orbits, varyin<^ from lyre-pointed to shor.t-pointed : postorbital 
{/rocesses ontstanding horizontally; rostrum nearly horizontal. Inmost 
specimens the highest point of the cranium cnlminates in a rather abrupt 
change of angle at or near the fronto-parietal sntnre, forming a se/rt of 
“ hnmp,” a condition nsnal also in sknlls of female (irizzlies from the 
I’pper Vnkon and northern Ifritish Colnmbia. 
Old male to/clat compared with, old male alascensis: frontal region more 
elevated; sagittal crest shorter; zygomatic breadth much greater; heel 
of last upper molar much longer. 
Old male tokhit compared icith old male pliaeongx : length about the 
same; zygomatic breadth very much greater, particnlarly with reference 
to basal length; trowtiiU mvxh more highly arched; sagittal crest shorter 
and lower; last upper molar larger—the heel much longer. 
Adult female toldat compared with that of alascensis: size decidedly 
smaller; vanlt of craninm decidedly lower, highest over posterior part (jf 
frontals instead of over mid<lle of frontals; frontal shield narrow, flat¬ 
tened, sloping ( not arched and not materially swollen over oi'hits); post¬ 
orbital processes outstanding hoi'izoidally; fronto-nasal region strongly 
dished; palate, post-palatal shelf, and occipito-sphenoid shorter; ni" with 
heel much longer. 
AduH female toldat compared with, adult female phaeonyx: size decidedly 
greater; teeth much larger, especially the canines and last upper molars. 
Ursus phaeonyx latifrons subsp. nov. 
Type cJ* old, Xo. TdfJLJ U. S. Xat. INlns., liiol. Survey Coll. (\)llected 
at Jasper House, .Mberta, Sept, lo, bSilo, by J. Alden boring (original 
Xo. fi'iJU). 
Characters. — Size medium; skull moderately arched aud moderately 
dished; base of skull elongati^ posteriorly; froutal shield very broad 
(interorbitally fC); between ])ostorbital processes h'JO), rising from rostrum 
rather abruj/tly, br/jadly sulcate nu^dially, convex over (jrbits; postor- 
bital pro<;es.ses rather large and outspreading, slightly decurved; orbital 
rims thickened; rostrum rathei' high, nearly horizontal, its upper surface 
rounded (snbtende) ; zygomata moderately spreading and broadly out- 
bowed, the scpiamosal part modei'ately ('xpauded vertically; palate ITd 
mm. , postpalatal shelf broad; postpalatal length I4d; occipito-sphenoid 
Sh; sagittal crest well developed; lowcn- jaw as a wliok*, and inferior 
border of ramns long; coronoid moderately falcate. 'IVetb of moderate 
size (very badly worn in type skull). 
Compared with })haeonyx. —Size and general characters es.sent ially same, 
but frontal shield broailer ; postorbital processes much largin'and more 
