EXPLANATION OF THE PLATES. 7 9 
Page. 
No. 626 '’—Fiber zibethicus, L.—No. 626'’.—Carlisle, Pa. 561 
No. 1587 —? Arvicola austera, Lee.—No. VW-—Calcasieu, La. 539 
No. 1306 —Beitlirodon montanus, Bd.—No. ViV-—Eocky mountains. 449 
No. 978 —Neotoma Jloridana, Say. & Ord.—No. y/.—Charleston, S. C. 487 
No. 1595 —Arvicola townsendii, Bach.—No. VW*—Shoalwater bay. 527 
No. 1694 —Neotoma cinerea, Bd.—No. VW-—Milk river, Nebraska. 499 
No. 939 —? Neotoma fuscipes, Cooper.—No. 939.—Los Angeles, California. 495 
No. 1674 —Neotoma mexicana, Bd.—No. —Chihuahua... 490 
PLATE LV. 
Fig. 1 —Erethizon epixantlius, Brandt.—No. 1263.—Yellow-haired porcupine.—Bill 
Williams’ fork. New Mexico. 569 
a —under surface of skull; b —upper surface of skull; c—side of skull; d — 
side of lower jaw-; e—upper view of lower jaw. 
Fig. 2—? Erethizon epixanthus —No. 822.—Upper Missouri. 569 
Upper view of skull. 
Fig. 3 —Erethizon dorsatus, F. Cuv.—Canada porcupine.—No. 3066.—Essex county. 
New York. 568 
Upper view of skull. 
PLATE LVI. 
Fig. 1 —Lepus glacialis, Leach.—Polar hare.—No. 2277.—Newfoundland. 577 
Skull. Keferences a-e as in preceding plate. 
Fig. 2 —Lepus campestris, Bach.—G-ray hare.—No. 972.—Fort Union, Nebraska. 585 
Keferences a-e as in preceding plate. 
PLATE LVII. 
Fig. 1 —Lepus callotis, Wagler.—Jackass rabbit.—No. 1191.—Brazos Santiago, Texas, 590 
Skull. Keferences a-e as the preceding. 
Fig. 2 —Lepus californicus, Gray.—No. 2273.—Petaluma, California.. - . 594 
Keferences a-e as the preceding. 
PLATE LVIII. 
Fig. 1 —Lepus sylvaticus, Bach.—Gray rabbit.—No. 625.—Carlisle, Pa. 597 
Skull. Keferences a-e as the preceding. 
Fig. 2 —Lepus audubonii, Baird.—No. 2045.—San Francisco, California. 608 
Keferences a-e as the preceding. 
PLATE LIX. 
Fig. 1 —Lepus aquaticus, Bach.—Swamp rabbit.—No. 1228.—Calcasieu, La. 612 
Skull. Keferences a-e as the preceding. 
Fig. 2 —Lepus palustris, Bach.—Marsh rabbit.—No. 2054.—St. Simon’s island, Ga. 615 
Keferences a-e as the preceding. 
