190 Proceedings of the Biological Socict]i of Washington. 
(=2000 1 ) 1111 .); solo of larjjfo.st fi^ot without claw.s: leiij^tli 12 in. 
^~'^95iimi.) ; hreadtli 8 in. (=204 iniii.). The old I'eiiialc from Trahuca 
Canyon measured in the Hesh hy Andrew Joplin, 0 ft. 3 in. 
Ursus henshawi s}). nov. 
Tgpr from sonthern Sierra Nevada near Ifavilali, Kern Co., Calif. No. 
loOTl c? old, U. S. Nat. Mus. Collected in 1875 hy Dr. .1. T. Kothrock 
and Henry W. Ffenshaw. 
Characters.—i^ize rather smalh-hy far the smallest of the California 
(iriz/Jies ; .size and (jeneral cranial characters as in horriaens, hut fronto¬ 
nasal rejjion strongly dished and rostrum strongly depres.sed. Last iipjior 
molar short and broad, the heel short and snhtriangnlar. Skin char¬ 
acters unknown. 
Cranial characters . — Skull long, narrow, and rather low, with narrowly 
spreading zygomata, gently sloping tiat-concavc' frontal shield, massive 
and somewhat arched postorhital proces.ses, swolkm orbital rims, strongly 
depressed and dished fronto-nasal region, and low dlepressed rostrum. 
('’ompared with an etjnally old male horriaens (the type, from Copper- 
mines, New' .Alexico): similar in general, lint rostrum strongly depre.«sed ; 
nasals flattened and horizontal anteriorly; fronto-nasal region strong}g 
''dished''' (in horriaens rather high and not dished); frontal shield strongly 
and broadly concave between orbits and between postorhital proces.'^es 
(only faintly silicate in horriaens); more strongly slojiing anteriorly; 
postorhital jiroce.sses shorter and blunter; orbital rims more prominent, 
relatively thin, somewhat everted, continning to lachrymal notch—their 
prominence anteriorly dne in part to presence of a broad sulcus in 
ascending arm of maxillary immediately in front of orbit; lachrymal 
dnet 0 ])ening in orbit posterior to orbital rim (in horriaens, on or 
anterior to rim); anterior nares broader than high (contrary true in 
horriaens)-, lamhdoid crest higher; inion ninch shorter; occijutal over¬ 
hang much le.ss; palate decidedly broader; iiiterjiterygoid canal shortm-; 
hasisphenoid more deeply excavated on each side of median line; exposeil 
presphenoid longer fprohahly not constant); mastoid processes much 
longer and more divergent; anterior part of pterygoids more broadly 
expanded vertically and articulating with a like expansion of ]iosterior 
arms of palatines (probably not constant). Upper molars decidedly 
broader (canines broken off). 
Ursus nelsoni* sp. nov. 
J!g>e 9 ndnlt No. hh()57 U. .8. Nat. Mus., Biol. Survey Coll., from 
Colonia (Jarcia, (diihnahna, .Mexico. Collected November 13, ]8i)<) hv 
H. A. ClufL 
Characters. Size, smallest ol the tirizzl^’^ Bears. (Teneral color, pale 
huffy yellowish, varying to grayish-white, grizzled from darker color of 
nnderfur. Specimens in worn pelage vary to yellowish-brown and even 
lusty. Hairs of thrc>at and flanks longer than elsewhere; belly .sparselv 
haired, lacking the thick underfnr of upper parts. 
•Named in lionor of K. W. Nelson, who secured a series for the U. S. Biological 
Survey. 
