EXPLANATION OF THE PLATES. 7 9 



Page. 



No. 626 b Fiber zibethicus, L. No. 626 b . Carlisle, Pa 561 



No. 1587 ? Arvicola austera, Lee. No. YsV- Calcasieu, La 539 



No. 1306 Eeithrodon montanus, Bd. No. YTT- Rocky mountains 449 



No. 978 Neotoma floridana, Say. & Ord. No. VV 8 . Charleston, S. C 487 



No. 1595 Arvicola townsendii, Bach. No. Ver- Shoalwater bay 527 



No. 1694 Neotoma cinerea, Bd. No. VVV- Milk river, Nebraska 499 



No. 939 ? Neotoma fuscipes, Cooper. No. 939. Los Angeles, California 495 



No. 1674 Neotoma mexicana, Bd. No. VVV- Chihuahua 490 



PLATE LV. 



Fig. 1 Erethizon epixanthus, 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. References a-e as in preceding plate. 

 Fig. 2 Lepus campestris, Bach. Gray hare. No. 972. Fort Union, Nebraska 585 



References a-e as in preceding plate. 



PLATE LTO. 



Fig. 1 Lepus callotis, Wagler. Jackass rabbit. No. 1191. Brazos Santiago, Texas, 590 



Skull. References a-e as the preceding. 

 Fig. 2 Lepus calif ornicus, Gray. No. 2273. Petaluma, California.. . 594 



References a-e as the preceding. 



PLATE LVIII. 



Fig. 1 Lepus sylvaticus, Bach. Gray rabbit. No. 625. Carlisle, Pa 597 



Skull. References a-e as the preceding. 

 Fig. 2 Lepus audubonii, Baird. No. 2045. San Francisco, California 608 



References a-e as the preceding. 



PLATE LIX. 



Fig. 1 Lepus aquaticus, Bach. Swamp rabbit. No. 1228. Calcasieu, La 612 



Skull. References a-e as the preceding. 

 Fig. 2 Lepus palustris, Bach. Marsh rabbit. No. 2054. St. Simon's island, Ga. 615 



References a-e as the preceding. 



