EXPLANATION OF THE PLATES. 79 
Page 
No. 626°—Fiber zibethicus, L.—No, 626°.—Carlisle, Pa........c.ccssccsseesececceseecccecceee 561 
No. 1587—? Arvicola austera, Lec.—No. 1488;'.—Calcasieu, La........c..ccccceeeeceeeeceeees 539 
No. 1306—Reithrodon montanus, Bd.—No. 122,°.—Rocky mountains..........cs0.cc0eeeeee 449 
No. 978—WNeotoma floridana, Say. & Ord.—No. %,'8.—Charleston, S. O..........es0000- 487 
No. 1595—Arvicola townsendii, Bach.—No. 453! eae Day Uae sdateeetteeeee cee 527 
No. 1694—WNeotoma cinerea, Bd.—No. 1,5°4.—Milk river, Nebraska..........c.c.eeeces eee 499 
No. 939—? Neotoma fuscipes, Cooper. ie Ss Ss —Los Angeles, California.............. 495 
No. 1674—Neotoma meaicana, Bd.—No. 48,5.—Chihuahua..........scccscessssecenecacceees 490 
PLATE LY. 
Fig. 1—Zrethizon epixanthus, Brandt.—No. 1263.—Yellow-haired porcupine.—Bill 
fudiarnarork, New Moxicd, 2... .cn9-0tnslhoevodsadess ance ant aot 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—? Frethizon epixanthus —No. 822.—Upper Missouri.............sssesceccesseeeeeecees 569 
Upper view of skull. 
Fig. 3—Lrethizon dorsatus, F. Cuv.—Canada porcupine.—No. 3066.—Essex county, 
BMG WORM cece ce scar Cs autesccivavs-vien fomins tel senscnia tester MACLEN, cc 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 LVII. 
Fig. 1—Lepus callotis, Wagler.—Jackass rabbit.—No. 1191.—Brazos Santiago, Texas, 590 
Skull. ‘References a—e as tle preceding. 
Fig. 2—Lepus californicus, Gray.—No. 2273.—Petaluma, California... ........cccccceese 594 
References a—e as the preceding. 
PLATE LVIII. 
Fig. 1—Lepus sylvaticus, Bach.—Gray rabbit.—No. 625.—Carlisle, Pa.eeeeeccecccess. 597 
Skull. References a-e as the preceding. 
Fig. 2—Lepus audubonii, Baird.—No. 2045.—San Francisco, Oalifornia.................. 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, Bean sisland,Ga. 615 
References a-e as the preceding. 
