MAMMALS—URSIDAE—URSUS AMERICANUS. 227 
Of two specimens from Louisiana, of nearly the same age with that first described, one agrees 
pretty well with it; the other exhibits a gentle concavity from between the orbital processes to 
the end of the nasals. 
In three very old specimens from Louisiana, the sagittal crest extends nearly as far as the 
middle of the frontal bone. In two of these there is rather more of a depression between the 
orbital processes than that described ; the third (a male) agrees very closely. The dorsal outline 
is altered in all as being less convex ; in one it is nearly straight from the end of the sagittal 
crest to the tip of the nose. 
A specimen (No. 1156) has a much shorter muzzle than the others, measuring only 0.29 of 
the total length, instead of 0.33, as given above. 
All agree in the general shape of the coronoid process as given above. 
Since writing the preceding article, I have examined a skull of the black bear from Saranac 
Lake, New York, which exhibits some very anomalous features, greatly differing from what has 
been described. The chief characteristic is the enormous breadth of the head, in this respect 
exceeding even the Ursus arctos of Europe. Thus, while the total length is 10.70 inches, the 
width is 7.60, a proportion of 100 to 71. A larger number of specimens from this locality, 
may perhaps furnish the clue to this remarkable variation, which, under other circumstances, 
would be readily allowed as indicating a distinct species. 
Measurements. 
Ursus Americanus. | Ursus Americanus. 
Morehouse parish, La, | Saranac Lake, N. Y. 
SKULL. CEVA uous | 2250. 
Inches. 100ths eee Inches. 100ths of length. 
Tayo) ther cai See ate aa cache See hea Liles SS 12. 30 1.00 || 10.70 1.00 
From end of intermaxillaries to end of condyles-.--.. -------- 11.70 ~95 10. 50 - 98 
rentesttwid hssceete it Sew Yew) 2 heceet tees ie | 7.50 460i THe 7260 71 
height above base of cranium .....-.---------------- 3.60 ey | Pees .31 
Distance between orbits.....--------------------ee-ee0----- 2. 80 22 «|| B77 25 
OxDital (processed a ee seee ene ee oe ee anes o 3. 85 -31 4.16 - 38 
Avseealshones lenc this. sees ween ere ena Seeds 3.10 226 || ~—«-23.50 323 
width: before! 22s.e5-0sosc4sceeeeeanaenedeaweee 1.00 . 08 1. 20 oo 
Narrowest part of muzzle behind the canines ---.--.-.-------- 2.58 . 20 2,27 21 
(Wpperineisors from front ‘tormolars.--- === <=s------s---ss5-5 2. 90 .23 2.40 - 22 
to hinder margin of palate....:- ---------...-- 6.15 - 50 5. 33 -49 
width between external edges .-..-------------- 1. 37 - il 1. 20 if 
Upper molars, length taken together......-.--.-------------- Zoo «19 1. 82 ht 
least distance between" +2<0.52222=2-2-2--<2-52- 1. 60 13 1.74 -16 
From intermaxillary to end of nasals ......------------------ 5, 25 ~42 4.40 -41 
commencement of orbit -.--.---------- 4. 60 aT 3.70 . 34 
Between postorbital points to occiput -....------------------- 7. 20 . 58 6. 40 -59 
postorbital points to end of nasals...-..-.--.--------- 4.14 eres 3. 37 -31 
end of intermaxillary ...-..-------- 6.27 .50 «|| = 5. 20 . 48 
