MAMMALS—URSIDAE—URSUS MARITIMUS. 229 
URSUS MARITIMUS. 
Polar Bear. 
Ursus maritimus, Linn. Syst. Nat. I, 1766, 70. (Under head of U. arctos.) 
E, Sasine, App. Parry’s First Voyage, 1824, 183. 
Ricu. App. Parry’s Second Voyage, 1825, 258.—Is. F. B. A. I, 1829, 30. 
Hartan, F. A. 1825, 51. 
Aup. & Bacu. N. A. Quad. II, 1851, 281; pl. xci. 
Ursus marinus, ‘‘ Paux. Itinerary.”—Is. Spicilegia Zoologia, XIV, 1780, p. 1, tab. i. 
Ear scarcely as long as the tail. Thumb much shorter than the outer toe. Crown, forehead, and top of the muzzle lie in 
one plane. Color snow white. 
I introduce this species merely for the sake of completing the record of American bears, 
although no specimens were collected by any of the expeditions. For a description of the skull, 
see its comparison with the skull of Ursus horribilis, as above. 
List of specimens. 
Catalogue Locality. Whence obtained. Nature of specimen. 
number. 
904 NorthGreenland +--es<+-seeseccen ass So Steenbereesces sh stccseseccsce Skull ...35s¢s beck see 
CUS hee dots neta a i Bae ee COU. See see eae ey ere fo do sen cao pa ee et eae 
* There is still another North American bear, if it be really different from the grizzly, namely, that described as Ursus arctos, 
or Barren Ground bear, by Richardson, in Fauna Boreali-Americana. Without any specimens or information other than what 
is detailed in Richardson, I have nothing to say on the subject. 
